- Discuss - lists.centos.org

yum difference
by derleader __ 09 Jan '11

09 Jan '11

Hi, Can you tell me what ate differences in the source code between the original Red Hat yum and the one which Centos uses for updates? Regards Peter

2 1

Re: [CentOS] source code location
by derleader __ 09 Jan '11

09 Jan '11

>>>>> Hi, >>>>> I'm interested from where Centos gets the source RPMs of updates for >>>>> Red Hat Linux? I suppose that they are publicly available but where? >>>>> >>>>> regards >>>>> Peter >>>> http://mirror.centos.org/centos/5/os/SRPMS/ >>> >>>I believe the OP is asking, where does the centos project get them from. >>> >>>and thats probably from... >>>ftp://ftp.redhat.com/redhat/linux/enterprise/5Server/en/os/SRPMS/ >>> >>>(adjust path as required) >> >> Where do you get the updates released from Red Hat? I see that there are >> several versions of some of the packets. Are these the updates? > >No, those are at ftp://ftp.redhat.com/redhat/linux/updates/enterprise/ why there is no version 6? only 2, 3 and 4 >in variious channels for various components. RedHat chose to separate >out various components, such as some virtualization and clustering >components, into separate "channels". CentOS, sensibly, merges them >back into a single repository. > >This is partly why the contents between CentOS's merged installation >environment and RHEL's various "workstation", "client" "node"d my >uncle benjy" channels do not precisely match CentOS's or Scientific >Linux's or the older Whitebox setups. > >The bare SRPM channels are available at: > > ftp://ftp.redhat.com/redhat/linux/enterprise/5Server/en/ >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos >

5 4

Re: [CentOS] source code location
by derleader __ 09 Jan '11

09 Jan '11

>> >No, those are at ftp://ftp.redhat.com/redhat/linux/updates/enterprise/ >> >> why there is no version 6? only 2, 3 and 4 > >ftp://ftp.redhat.com/redhat/linux/updates/rhn/5Server/ > > >I don't believe there are any updates for 6 yet, are there? >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > Ok thank you everybody. MY second question is about Red Hat Network. Is it 100% open source? The only code that I found is the source code of red hat network upstream project Spacewalk. http://spacewalk.redhat.com/source/1.2/RHEL/5/ I would like to see the source code of RHN if it's available?

2 1

Re: [CentOS] source code location
by derleader __ 09 Jan '11

09 Jan '11

>>> Hi, >>> I'm interested from where Centos gets the source RPMs of updates for >>> Red Hat Linux? I suppose that they are publicly available but where? >>> >>> regards >>> Peter >> http://mirror.centos.org/centos/5/os/SRPMS/ > >I believe the OP is asking, where does the centos project get them from. > >and thats probably from... >ftp://ftp.redhat.com/redhat/linux/enterprise/5Server/en/os/SRPMS/ > >(adjust path as required) Where do you get the updates released from Red Hat? I see that there are several versions of some of the packets. Are these the updates? > > >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos >

2 1

source code location
by derleader __ 09 Jan '11

09 Jan '11

Hi, I'm interested from where Centos gets the source RPMs of updates for Red Hat Linux? I suppose that they are publicly available but where? regards Peter

4 3

logical volume management
by Ritika Garg 09 Jan '11

09 Jan '11

In centos 5.5 system->administration->logical volume management comes whereas in centos5.3 i don't see the option logical volume management under system->administration. How to see it?

3 2

Re: [CentOS] logical volume management
by Lisandro Grullon 09 Jan '11

09 Jan '11

I agree... LVM command line is the way to go in this case, it offers more flexibility than having to configure stuff with the actual GUI. Likely a GUI will be integrated in 6.x I hope in order to aid those that are afraid of the CLI. ------Original Message------ From: John R Pierce Sender: centos-bounces(a)centos.org To: CentOS mailing list ReplyTo: CentOS mailing list Subject: Re: [CentOS] logical volume management Sent: Jan 9, 2011 4:46 AM On 01/09/11 1:40 AM, Ritika Garg wrote: > In centos 5.5 system->administration->logical volume management comes > whereas in centos5.3 i don't see the option logical volume management > under system->administration. How to see it? LVM command line _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos Sent on the Sprint® Now Network from my BlackBerry®

1 0

ntfs-3g
by Ritika Garg 09 Jan '11

09 Jan '11

When seagate hard disk mounts on my laptop, nothing can be "cut" from the hard disk to the laptop. Nothing can be "cut" or "copied" from the laptop to the hard disk. Also I am not able to change permissions of files on the hard disk. What can I do to resolve the problem?

1 0

folder quotas
by aurf alien 09 Jan '11

09 Jan '11

Hi all, Is there a way to implement folder quotas instead of just partition quotas? I'm trying to limit home dirs from getting out of control. And I did RTFM but it seems only partition/share quotas are possible :) - aurf

5 8

Re: [CentOS] happy new year :D i have a problem to upgrade my glibc to 2.7 on centos 5.5
by Ritika Garg 09 Jan '11

09 Jan '11

I have a executable and when i run it then the error comes: /lib64/libc.so.6: version 'GLIBC_2.7' not found I don't have the source code of the executable. And I can't find glibc 2.7 for centos 5.5.

2 1

Customizing Centos
by derleader __ 08 Jan '11

08 Jan '11

Hi, I want to ask you is it legal to create my own distribution based on Red Hat/Centos and to sell it under different name? I will make available for everyone to see the source code. Is this against the license agreement? regards Peter

8 7

Re: [CentOS] Customizing Centos
by derleader __ 08 Jan '11

08 Jan '11

>> Hi, >> I want to ask you is it legal to create my own distribution based on Red >> Hat/Centos and to sell it under different name? I will make available for >> everyone to see the source code. Is this against the license agreement? >> >> regards >> Peter >> >> _______________________________________________ > > > >Yes, you can customize the distro as you see fit. Many projects do >this. But, you can't sell it. I need to use customized Centos to host special software designed and written from me. Is it legal to sell my software with the operating system? regards

3 2

Re: [CentOS] Customizing Centos
by derleader __ 08 Jan '11

08 Jan '11

>> There's no restriction in the GPL to prevent you from selling things. You just >> just can't prohibit the buyer/recipient from redistributing it under the GPL >> terms and you have to make source available. Some of the other licenses are >> different, but none prevent redistribution and none that I know of have terms >> that would prevent that redistribution being a sale. >> > >Copyrighted artwork would have to be changed. > >...snip >You may not use the CentOS logos to distribute ISOs that have been modified. >snap... > >http://www.centos.org/modules/smartfaq/faq.php?faqid=49 > >-- >B > est Regards, Markus Falb > Ok thank you everyone. I have a second question. My business strategy will be based like Red Hat on selling support and updates to clients. The most comfortable way for the users will be only to install the made software on empty server and to start using it. To do this I need a way to let the client to enter serial key before installation like Red Hat does. Is tis source code available on Internet? Where I can find information how to make this on Centos? Regards Peter

2 1

how to graph iozone output using OpenOffice?
by Rudi Ahlers 08 Jan '11

08 Jan '11

Hi all, Can anyone please steer me in the right direction with this one? I've searched the net, but couldn't find a clear answer. How do I actually generate graphs from iozone, using OpenOffice? Every website I've been to simply mentions that iozone can output an xls file which can be used in MS Excel to generate a 3D graph. But, I can't see how it's actually done. Can anyone please help me with this? I've run the following command on a CentOS 5.4 server: iozone -R -l 5 -u 5 -r 1m -s 100m -F /home/f1 /home/f2 /home/f3 /home/f4 /home/f5 | tee -a /tmp/iozone_results.txt & And then imported the iozone_results.tx file into OpenOffice Calc, but got no idea where to from here? I would like todo something like this: http://www.smallnetbuilder.com/images_old/2006/06/06/two_drives_are_better_… http://oraclue.com/2008/10/03/iozone-filesystem-benchmark-too/ -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

3 3

Re: [CentOS] Set font and size in xterm
by Thomas Dickey 08 Jan '11

08 Jan '11

According to James B. Byrne: > I have attempted to set the font size using xrdb and a custom > ..Xresources file. I can change the colour scheme. I can create a > scrollbar. I can move the scrollbar to either the right or left > window margin. What I cannot do is to change the font size. That sounds as if your machine does not have the bitmap fonts installed. You can either install them or use the TrueType fonts by using the -fa option from the command-line or setting the faceName resource in your resource-file. The "missing fonts" warning is for less-essential fonts, e.g., for the input-method, etc. -- Thomas E. Dickey http://invisible-island.net ftp://invisible-island.net

1 0

When are Logwatch errors really errors
by Jason S-M 08 Jan '11

08 Jan '11

Hi All, I don't know enough about when errors are *really* errors. So I google a lot to read and learn. I have a few things in my Logwatch that I want to make sure I understand 1. smartd **Unmatched Entries** Problem creating device name scan list Device /dev/sda: using '-d sat' for ATA disk behind SAT layer. Device /dev/sdb: using '-d sat' for ATA disk behind SAT layer. Device: /dev/sdc, NO MEDIUM present; skip device Device: /dev/sdd, NO MEDIUM present; skip device Device: /dev/sde, NO MEDIUM present; skip device Device: /dev/sdf, NO MEDIUM present; skip device I googled and since I know the devices I have I can comment out #DEVICESCAN -H -m root and replace with: /dev/sda -a -d sat -m root -M exec /usr/share/smartmontools/smartd-runner /dev/sdb -a -d sat -m root -M exec /usr/share/smartmontools/smartd-runner 2. kernel WARNING: Kernel Errors Present amd64_edac: probe of 0000:00:18.2 failed with error -22 ...: 1 Time(s) I googled this and I only had 5 hits that I could not make sense of. Can anyone shed some light? 3. automount **Unmatched Entries** lookup_read_master: lookup(nisplus): couldn't locate nis+ table auto.master: 1 Time(s) I googled and this seems to be a RHEL bug? Can anyone confirm and explain? -Jason

5 7

Corrupted RPM DB can't be rebuilt.
by Camron W. Fox 08 Jan '11

08 Jan '11

Alle, I have a major problem. I'm running CentOS 5.5 on some rather old hardware (Dual Celeron 500MHz with 768MB of memory). Sometime in the last week, the DB became corrupted (I noticed when yum update would hang). I've tried running rpm --rebuild with both the 2.6.18-194.17.4 and 2.6.18-194.26.1 kernels and get a segmentation fault each time. Consequently, I'm pretty much stuck and cannot do any update. Also, the machine has a tendency to hang any time operations are done. I've disabled some of the cronjobs that do this, but this is no way to operate. I would appreciate any input on where to go from here to try and rectify the problem. Best Regards, Camron -- Camron W. Fox Hilo Office High Performance Computing Group Fujitsu Management Services of America, Inc. E-mail: cwfox(a)us.fujitsu.com

4 4

Re: [CentOS] Centos 5.5 - Kernel Panic while booting.
by David Latham 08 Jan '11

08 Jan '11

On 01/08/2011 06:00 AM, centos-request(a)centos.org wrote: > Message: 15 Date: Thu, 06 Jan 2011 11:20:41 -0800 From: Scott Silva > <ssilva(a)sgvwater.com> Subject: Re: [CentOS] Centos 5.5 - Kernel Panic > while booting. To: centos(a)centos.org Message-ID: > <ig54m9$rvm$1(a)dough.gmane.org> Content-Type: text/plain; charset=UTF-8 > on 1-5-2011 3:50 AM David Latham spake the following: >> > Hi, >> > >> > When I make DVDs of Centos and any others for that matter, I take the >> > following steps: >> > >> > 1. Find an official torrent if possible. (Centos has torrents for the DVD. >> > Unfortunately no Jigdo so far as I know.) >> > > Jigdo is a Debianism... Don't know too many places outside of their community > using it. It seems to be a cross between bittorrent and rsync... Except for Fedora (for example) which is a Redhat project and Centos is a Redhat clone so it can't be only Debian. I know a developer debian started for debian and it works very well for debian due to their package naming conventions, but other distros are picking it up. Its far better than bitrorrent or rsync in that jigdo downloads the individual packages and then makes the iso images from these packages. This means that every package and file on the iso image is verified at the point of download allowing for a much safer download. Also, it is possible to mount an existing ISO and tell jigdo about this mount so that any packages which are duplicated exactly in the new iso do NOT need to be downloaded again. This is handy in Fedora for example when one wants to create the CD Set after already having downloaded the DVD. Why download the same thing twice. In my experience, the DVD provides all 6 CDs and approximately 10 small files are needed to be downloaded to complete the whole CD set. Here is the link to the Fedora all formats page showing the jigdo option nicely highlighted. http://fedoraproject.org/en/get-fedora-all Regards David Latham www.thelinuxcdstore.com

1 0

automated remote cloning
by Geoff Galitz 07 Jan '11

07 Jan '11

Good morning/day and Happy New Year. We have a geographically distributed environment (marketing speak: cloud) where we regularly need to migrate individual systems to new hardware (for bigger disks or for better geographical placement, for example). We currently use Cobbler to do our base installs automatically and I am now looking at integrating Clonezilla with Cobbler. The goal is take an *individual* system that has been customized and migrate it in an automated fashion. We currently do this using Cobbler and then running rsync and mysqldump in a script along with other system -> userland module configurations (such as PHP modules) but the process is tedious and generally a PITA. We also must have the ability to run this across different datacenters on different continents. Any pointers to good automated solutions? References: https://fedorahosted.org/cobbler/wiki/ClonezillaIntegration

5 6

gdm_slave_xioerror_handler problem
by sync 07 Jan '11

07 Jan '11

Hi , guys: Today , I work on my laptop which uses the CentOS x86_64 operating system , Suddenly the X-windows restarts when left at the login screen for more than a few seconds. The error in my syslog is: Apr 12 15:26:45 localhost gdm[2892]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0 This message came up serval times previously ~ Any other help would be nice. Thanks in advance ~

2 1

linux batch job "sleep" problem???
by mcclnx mcc 07 Jan '11

07 Jan '11

we have Redhat 5.5 on server. Recently we tried to use "sleep" command on batch job script some sleep work but some not sleep. any one have ideal? ==== sample program === #/bin/bash set -v program1 sleep 30 program2 sleep 60 program3 sleep 40 ...

5 4

Quoting practice
by Leonard den Ottolander 07 Jan '11

07 Jan '11

Hi guys and girls, It would be appreciated by many if you could strip quotes in your replies. Having to wade through a fully quoted mail to find a one or two line reply followed by one or more quoted footers is just a waste of time, bandwidth, disk space and cpu cycles. This might not be a problem if only one or two of the posters here would be lazy with regard to stripping replies, but there's quite a few of those here and if you receive hundreds of mails a day it all adds up. Also these mails end up in the mail boxes of probably thousands of readers. Please keep your quotes concise and to the point. If you have a one line reply chances are the quote you are replying to isn't much longer. Help us keep the signal to noise ratio up. Thank you very much! Regards, Leonard. -- mount -t life -o ro /dev/dna /genetic/research

2 1

Re: [CentOS] happy new year :D i have a problem to upgrade my glibc to 2.7 on centos 5.5
by Ritika Garg 07 Jan '11

07 Jan '11

I also want glibc 2.7 for a particular application to run. The first step mentioned is : Step1:download nasm src.rpm from official site I did not understand what will this rpm do? I mean is that a substitute for glibc 2.7?

2 1

if you install cgi programs from rpm, how to configure for actual use in /var/www/html ?
by Paul Johnson 07 Jan '11

07 Jan '11

In Centos 5.5, I've had this same experience over and over. I have no trouble installing CGI programs the old fashioned way (untar into /var/www/html and configure), but don't like un-rpm managed files floating about. So I can install, for example, phpMyAdmin, from EPEL. That phpMyAdmin RPM drops files into a bunch of locations, the php files are under /usr/share/phpMysql and then there are also: /etc/httpd/conf.d/phpMyAdmin.conf /etc/phpMyAdmin /etc/phpMyAdmin/config.inc.php and this: /var/lib/phpMyAdmin /var/lib/phpMyAdmin/config /var/lib/phpMyAdmin/save /var/lib/phpMyAdmin/upload In order to make this actually work on the web server, I copy the directory /usr/share/phpMyAdmin into /var/www/html and then I edit the /etc/httpd/conf.d/phpMyAdmin.conf. Then it works. Then a new version of the phpMyAdmin RPM is released on EPEL, it gets installed, and I have no idea what I'm supposed to do to keep my thing in /var/www/html working. I had the exact same experience with the mediawiki RPM from EPEL. It installs its files into /var/www/ var/www/mediawiki116 and /usr/share/mediawiki116 The web server required everything to b e under /var/www/html/, so I copy files in there. The mediawiki116 documentation does not mention this problem, but I've googled long enough until I found this, which agrees with me that it is necessary to copy the files over in order to use the media wiki. http://www.wikihow.com/Install-MediaWiki-on-Fedora Unfortunately, now the upgrade path is obscured. When RPM updates its files (scattered over the file system), what to do? --- Paul E. Johnson Professor, Political Science 1541 Lilac Lane, Room 504 University of Kansas

7 9

Problem with SSHD update.
by James B. Byrne 07 Jan '11

07 Jan '11

This morning I applied the 13 or so new updates to my servers. On one of them the ssh service and clients stopped working immediately after the update. I restarted the server in anticipation that there might be some instability introduced by updating on a system with active ssh connections. However, this has not cleared the problem. The packages in question are: openssh.i386 0:4.3p2-41.el5_5.1 openssh-askpass.i386 0:4.3p2-41.el5_5.1 openssh-clients.i386 0:4.3p2-41.el5_5.1 openssh-server.i386 0:4.3p2-41.el5_5.1 The error I am getting when attempting to start the sshd service is this: Starting sshd: Auto configuration failed 6486:error:0E065068:configuration file routines:STR_COPY:variable has no value:conf_def.c:629:line 207 [FAILED] Can anyone reading this inform me as to what this means, what the likely cause is, and how it may be repaired? I have webmin access to the server and, as it is inside our firewall I can probably enable telnet to get a terminal window do carry out modifications. But I need to know what it is that I need to modify. Alternatively, can anyone point me to a reference regarding removing the current version of openssh and reverting to the prior version, which worked with presumably the same user configuration that the present version does not accept. The only references that I can find respecting this error message are all several years old and some of them suggest that their is a problem with accessing or using /dev/random or /dev/urandom. This matter is somewhat urgent. I have temporarily routed essential ssh connections through a spare host but the box affected sits in front of our legacy systems providing secure access to them as their native OSs and telecom protocols do not support encryption. It is very important that the SSHD service be restored on this host as soon as is possible. Any help with this is gratefully appreciated. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

12 20

Multiple LUN support
by Abilio Carvalho 07 Jan '11

07 Jan '11

I have Centos 5.2 and am trying to set up my first tape loader, a Quantum SuperLoader 3. My "cat /proc/scsi/scsi" outputs the following: Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: transtec Model: PV610F16R1C Rev: 373I Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 01 Lun: 00 Vendor: HP Model: Ultrium 3-SCSI Rev: D22D Type: Sequential-Access ANSI SCSI revision: 03 Host: scsi1 Channel: 00 Id: 05 Lun: 00 Vendor: HP Model: Ultrium 4-SCSI Rev: B54Z Type: Sequential-Access ANSI SCSI revision: 05 It is my understanding that there should be TWO devices for the loader, one for the tape drive and one for itself. From reading around, it seems that it's lacking Multiple LUM support. My question is, are more recent versions of CentOS enabling that by default? Either compiling kernel modules or doing a full upgrade of the system are "big" jobs in my case, but I'd prefer the upgrade if 5.5 works out of the box. Or do I really need to recompile kernel, enable max_lums in modprobe.conf, etc? Thank you Abe ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by Clearswift for the presence of computer viruses. www.clearswift.com **********************************************************************

6 6

Configuring printers in CentOS 5
by Glenn Eychaner 07 Jan '11

07 Jan '11

Could someone please explain to me how to best configure printers in CentOS 5? I've been trying to configure a new printer, which is served by a Mac Mini: If I open a web browser at localhost:631, or "system-configure-printers" and I configure the new printer as an IPP printer, it winds up in a list of "Remote printers", and once it winds up there I can't seem to delete the printer or change the settings at all. If I try using the system-config-printers interface, it's all greyed out; if I try using CUPS, it actually tries to connect to CUPS on the Mini! In order to delete it, I have to manually revert the /etc/cups files and restart the cups printing system in system-config-services. I just don't understand printer configuration on Linux. On the Macs, it's just plug and go. Why does CentOS have to make it so confusing? -G. -- Glenn Eychaner (geychaner(a)lco.cl) Telescope Systems Programmer, Las Campanas Observatory

3 2

SELinux - way of the future or good idea but !!!
by Alison 07 Jan '11

07 Jan '11

Hi, total newbie on CentOS. Just firing up an install of 5.5 on a development webserver. Installed Webmin, Awstats, PHPMyAdmin and Drupal successfully. Yet to work on Sendmail and Samba. SELinux in enforcing mode, reporting "SELinux preventing ifconfig (ifconfig_t) "read write" to /var/webminsessiondb.pag (var_t)". Googled the error message without real success in finding fix - bug reports showing. Question is whether worth pursuing as SELinux is the way of the future. Or is SELinux a good idea that never really made it's way into the sun. Thoughts please. Alison PS. Semi-retired. Cut my teeth as sys prog on RSX11-M systems eons ago.

40 176

Tar so slow! Is there anything faster?
by Dotan Cohen 07 Jan '11

07 Jan '11

I need to tar up a good 100 GiB of files, but tar is progressing at a rate of about 1 MiB per second. Is there something, anything, faster? Thanks! -- Dotan Cohen http://gibberish.co.il http://what-is-what.com

8 10

Graphing System Load MRTG
by Matt 07 Jan '11

07 Jan '11

I check system load like so: [root@server cron.daily]# w 10:07:33 up 4 days, 15:01, 2 users, load average: 4.22, 3.17, 3.09 I would like to to graph the 3.17 5 minute average with MRTG. Anyone know of some examples of doing this?

7 13

centos 5.5 install + intel raid
by aurfalien＠gmail.com 06 Jan '11

06 Jan '11

Hi all, Installing 5.5 on a fresh system having an Intel RAID. My 2 drives are configured as a mirror within the Intel BIOS. When starting my install, Anaconda throws an exception. After a brief goog, I see one possible fix is - at the install prompt, type; linux text nodmraid This is fine and all but Centos sees 2 disks at this point rather then 1 which is what I thought the Intel RAID controller would present to the OS. I am pretty much tarded when it comes to installs as I usually boot of a DVD, enter some choices based on requirements and off I go. I once compiled a network driver into the initrd and remade my boot disk but that seems beyond me now. Any help is greatly appreciated. - aurf

6 10

Re: [CentOS] Centos 5.5 - Kernel Panic while booting.
by David Latham 06 Jan '11

06 Jan '11

Hi, When I make DVDs of Centos and any others for that matter, I take the following steps: 1. Find an official torrent if possible. (Centos has torrents for the DVD. Unfortunately no Jigdo so far as I know.) 1.1 Torrents come with checksums and the torrent app I use will check the downloaded file against the checksums. Otherwise find a stable mirror close to where you are for better speed. 1.2 If you cant get a torrent find out if the distro vendors offer any other options. IE: Jigdo, zsync etc. etc. I usually try for one of these before going for a strait FTP download. FTP downloads often fail and are not always recoverable in the event of an interruption. Jigdo is my favourite as each and every package and file is downloaded and verified and then the DVD image (.iso) made up from all the packages. It is basically a self checking system and has proven to be very reliable. 2. Once the file is downloaded do a binary checksum using the official checksums found on the vendors homepage or mirror you downloaded from. Information on how to call sha512sum or any checksum tool to make it do a binary level checksum can be found in the man pages. (sha512sum -b filename.iso) I always go for the largest checksum algorithm provided. IE: SHA512SUM if available otherwise SHA256SUM, SHA1SUM or as a last resort MD5SUM. If this passes proceed to step 3. 3. Burning the DVD. This step is the trickiest part to get right. 3.1. Find **reliable** media. Always choose DVD-R. Go with a named brand. I usually go for spindles of 50 or less. I have found that the 100 unit spindles get a bit heavy on the ones at the bottom and I am unsure of the effect shipping and handling has on them. 3.2. Use the following wodim command: "/usr/bin/wodim dev=/dev/sr0 driveropts=burnfree fs=14M speed=4 -dao ${ISO_FILENAME}" where /dev/sr0 is your DVD device and ${ISO_FILENAME} is your iso you are trying to burn. to burn the DVD at the slowest possible speed your DVD burner will go for. Use DISK AT ONCE (dao) to write the whole file in one go. Wodim will close the disk session after burning. I know nothing about using windows tools to burn DVDs as I do this on Linux. 4. Check the media against the official checksum you used in step 2. Here are my steps for doing this. Again this has to be done right. Sometimes you will get different results if you try to simply call sha512sum -b /dev/sr0 where /dev/sr0 is your DVD drive. 4.1. Use the isoinfo tool to retreive the blocksize and blockcount of the DVD you are checking. (/usr/bin/isoinfo -d -i /dev/sr0 where /dev/sr0 is your DVD device.) 4.2. Use dd to read the disk using the correct blocksize and blockcount settings and pipe through the checksum tool. IE: "/bin/dd if=/dev/sr0 bs=${blocksize} count=${blockcount} conv=notrunc,noerror status=noxfer | sha512sum -b" where ${blocksize} and ${blockcount} are the numbers you retrieved from using isoinfo. conv=notrunc,noerror come from another post I found once. So far so good... The dd man page explains that notrunc means do not truncate the output file and noerror means continue after read errors. status=noxfer is just to keep the whole thing a little quieter by not displaying transfer statistics. You can play with these settings if you like. They have done me fine for over 400 burns since I started doing this over 2 years ago. This will produce a checksum you can visually compare with the official checksum you retrieved from the mirrors to confirm if your disk is good. I do not know of a better way, without actually installing the OS, of verifying that the media is good. I have all this scripted so complete all these steps every time I ship a DVD to any customer who orders one. Best regards David Latham http://www.thelinuxcdstore.com > Message: 1 > Date: Mon, 03 Jan 2011 13:37:17 -0500 > From: "Lisandro Grullon" <lgrullon(a)CityTech.Cuny.Edu> > Subject: Re: [CentOS] Centos 5.5 - Kernel Panic while booting. > To: <amyagi(a)gmail.com> > Cc: centos(a)centos.org > Message-ID: <4D21D10D020000890000F53B(a)email2.citytech.cuny.edu> > Content-Type: text/plain; charset="us-ascii" > > This was very helpful Akemi...I was loading centos in two other identical servers today and was having such a hard time loading it from DVD, DVD appears to be crashing, I even re-downloaded the image 3 times from three different mirrors and burn them with different applications (Nero, Roxio, and poweriso), worse case scenario it must be something with the Memorex DVD Media. Anyway, after two hours of trying I decided to do a network install and everything went flawless. Good to have many options, Centos rocks! > >>>> Akemi Yagi 12/17/10 8:13 PM >>> > On Fri, Dec 17, 2010 at 5:11 PM, Lisandro Grullon > wrote: >> Akemi, >> I went through the different mirrors and was unable to locate the ISO as it >> is stated as deprecated or unsupported, is there any plans to fix this issue >> in 5.6 or rather 6.x release. It appears that the latest build from Centos >> was built back in may, lots of bugs have emerge since them including this >> one relating to a kernel panic. Please advise in the location of 5.4, i am >> willing to try it. > > It's here: > > http://vault.centos.org/5.4/ > > Akemi > >

3 2

Compiling thunderbird
by lhecking＠users.sourceforge.net 06 Jan '11

06 Jan '11

I'm following this thread here http://www.centos.org/modules/newbb/viewtopic.php?topic_id=23749&forum=38 to build an rpm for thunderbird 3.1.6/3.1.7 from source. While it works well on i386, compilation fails for x86_64. Any advice how to fix the spec file? ... rm -f libthebes.so c++ -fno-rtti -fno-exceptions -Wall -Wpointer-arith -Woverloaded-virtual -Wsynth -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -Wcast-align -Wno-invalid-offsetof -Wno-long-long -pedantic -fno-strict-aliasing -fshort-wchar -pthread -pipe -DNDEBUG -DTRIMMED -Os -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -I/usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/include/cairo -I/usr/include/gtk-2.0 -I/usr/lib64/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/libpng12 -I/usr/include/gtk-unix-print-2.0 -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/freetype2 -fPIC -shared -Wl,-z,defs -Wl,-h,libthebes.so -o libthebes.so cairo-xlib-utils.o woff.o gfxASurface.o gfxAlphaRecovery.o gfxBlur.o gfxContext.o gfxImageSurface.o gfxFont.o gfxFontMissingGlyphs.o gfxFontTest.o gfxFontUtils.o gfxMatrix.o gfxPath.o gfxPattern.o gfxPlatform.o gfxPlatformFontList.o gfxRect.o gfxSkipChars.o gfxTextRunCache.o gfxTextRunWordCache.o gfxUserFontSet.o gfxPangoFonts.o gfxXlibSurface.o gfxPlatformGtk.o gfxGdkNativeRenderer.o gfxPDFSurface.o gfxPSSurface.o gfxFontconfigUtils.o gfxFT2FontBase.o gfxFT2Utils.o nsUnicodeRange.o -lpthread -Wl,-rpath,/usr/lib64/thunderbird-3.1 -Wl,-rpath-link,/usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/bin -Wl,-rpath-link,/usr/lib ../../../gfx/cairo/cairo/src/libmozcairo.a ../../../gfx/cairo/libpixman/src/libmozlibpixman.a -L/usr/lib64 -lXrender -lfreetype -lfontconfig /usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/lib/libunicharutil_s.a -L/usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/bin -lxpcom -lxpcom_core -L/usr/src/redhat/BUILD/thunderbird-3.1.7/comm-1.9.2/objdir-tb/mozilla/dist/lib -lplds4 -lplc4 -lnspr4 -lpthread -ldl -lz ../../../gfx/qcms/libmozqcms.a ../../../gfx/ots/src/libmozots.a -L/lib64 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -lz -L/usr/lib64 -lX11 -L/lib64 -lgtk-x11-2.0 -latk-1.0 -lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lm -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -lasound -ldl -lm /usr/bin/ld: gfxUserFontSet.o: relocation R_X86_64_PC32 against `ots::Process(ots::OTSStream*, unsigned char const*, unsigned long, bool)' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Bad value collect2: ld returned 1 exit status --------------------------------------------------------------- This message and any attachments may contain Cypress (or its subsidiaries) confidential information. If it has been received in error, please advise the sender and immediately delete this message. ---------------------------------------------------------------

3 6

CentOS-announce Digest, Vol 71, Issue 1
by centos-announce-request＠centos.org 06 Jan '11

06 Jan '11

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2011:0004 Important CentOS 5 i386 kernel Update (Karanbir Singh) 2. CESA-2011:0004 Important CentOS 5 x86_64 kernel Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Thu, 6 Jan 2011 12:23:15 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2011:0004 Important CentOS 5 i386 kernel Update To: centos-announce(a)centos.org Message-ID: <20110106122315.GA18304(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2011:0004 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2011-0004.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 7b014beebd94699f73c4def3cf42904a kernel-2.6.18-194.32.1.el5.i686.rpm 182d647cbabd24ed7e55be10ac1a1ee5 kernel-debug-2.6.18-194.32.1.el5.i686.rpm aa4bd8b6980a41184a3855a3d740c069 kernel-debug-devel-2.6.18-194.32.1.el5.i686.rpm e4773418e9d6283e992581bc705c8586 kernel-devel-2.6.18-194.32.1.el5.i686.rpm 565ace179f1d13b815b6e7bab64fd96f kernel-doc-2.6.18-194.32.1.el5.noarch.rpm 3f62ab7e59436c2c70e3c19c1fb5a6fd kernel-headers-2.6.18-194.32.1.el5.i386.rpm 31aba283f0836439ba636486e25b0b99 kernel-PAE-2.6.18-194.32.1.el5.i686.rpm 3522478de8f3b8d04d1efae090b5d686 kernel-PAE-devel-2.6.18-194.32.1.el5.i686.rpm 2043535dbc092bc48b841161a85727b5 kernel-xen-2.6.18-194.32.1.el5.i686.rpm 3f72b85c494ede0281f42f44ccab7aee kernel-xen-devel-2.6.18-194.32.1.el5.i686.rpm Source: 621b12f22bfde971ac50d6fddea06c50 kernel-2.6.18-194.32.1.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Thu, 6 Jan 2011 12:23:15 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2011:0004 Important CentOS 5 x86_64 kernel Update To: centos-announce(a)centos.org Message-ID: <20110106122315.GA18321(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2011:0004 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2011-0004.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 956733c501183a6354ebcee2774b0c30 kernel-2.6.18-194.32.1.el5.x86_64.rpm 64f6fbdf7520e6d83dec94d8c07e4589 kernel-debug-2.6.18-194.32.1.el5.x86_64.rpm e6e7c3d69b4ed902788555979eb6da10 kernel-debug-devel-2.6.18-194.32.1.el5.x86_64.rpm f1c12f7e7c579e1362c5f6efe9d5ec15 kernel-devel-2.6.18-194.32.1.el5.x86_64.rpm af191f7f689b172db4bc1d70ee7f3988 kernel-doc-2.6.18-194.32.1.el5.noarch.rpm 4be0a1ad9335fdeb7d781fd43c3756e8 kernel-headers-2.6.18-194.32.1.el5.x86_64.rpm f3f93494d59f8b13a4b99c40a0f7a889 kernel-xen-2.6.18-194.32.1.el5.x86_64.rpm ab5c8fee67ff44dc4a5bf3cb05da2306 kernel-xen-devel-2.6.18-194.32.1.el5.x86_64.rpm Source: 621b12f22bfde971ac50d6fddea06c50 kernel-2.6.18-194.32.1.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 71, Issue 1 **********************************************

1 0

poppassd and different password
by fakessh＠fakessh.eu 06 Jan '11

06 Jan '11

hello centos network I installed poppassd (the deposit razor edge) to change easily passwords of users of my system I allow connections on port 106 that locally I have configured pam I did install the plugin roundcubemail password in webmail everything seems to work well my question is simple on my system for some users, I built chrooted well I manage to change the password of users with the interface roundcubemail webmail but I wonder if the password and changes in the chroot or also to the outside of the chroot question may seem stupid but I do not know ... any comments are welcome sincerely nb: Happy New Year -- http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x092164A7 gpg --keyserver pgp.mit.edu --recv-key 092164A7

3 2

how to access external USB drive in single user mode
by Agnello George 06 Jan '11

06 Jan '11

how to access external USB drive in single user mode Thanks -- Regards Agnello D'souza

4 3

[OT] RHEVM List
by Simon Grinberg 06 Jan '11

06 Jan '11

Test

1 0

Re: [CentOS] RHEVM List
by Simon Grinberg 06 Jan '11

06 Jan '11

test

1 0

OT how to prevent oversubscription of a disk
by Dave 06 Jan '11

06 Jan '11

I want to add up the quotas I've assigned on a particular partition and see if the total is bigger than the disk. It's possible to do this (awkwardly) using repquota or quota. Is there no more accurate/elegant way? I can't be the first person to worry that more quota has been issued than the disk can supply. mahalo and Happy New Year, Dave -- Q: Why should this email be 5 sentences or less? A: http://five.sentenc.es

7 11

recursively find duplicate filenames
by S Mathias 06 Jan '11

06 Jan '11

find duplicate filenames in a folder find | perl -ne 's!([^/]+)$!lc $1!e; print if 1 == $seen{$_}++' find duplicate filenames in a folder recursively ? how?

10 11

check, that a script is in a folder
by S Mathias 06 Jan '11

06 Jan '11

$ echo ${PWD##*/} somefolder $ if "${PWD##*/}" -eq "asdf" > /dev/null; then echo "this is the asdf folder"; else exit 1; fi bash: notthatfolder: command not found... this is the asdf folder $ So i just want to check that i'm in an exact folder. e.g.: "asdf" What's wrong with my one-liner? I just want to check, that a script is in a folder, and if it isn't, then it exits

4 3

fstab multiple line entries?
by Keith Roberts 05 Jan '11

05 Jan '11

I'm trying to add a long list of mount options in my fstab, and break the entry over 2 lines, as it goes off screen. Taking this as an example: # This works # #/dev/hda9 # original settings # LABEL=downloads /downloads ext3 defaults 1 2 # This doesn't work # #/dev/hda9 # new options LABEL=downloads /downloads \ ext3 defaults 1 2 Using the '\' character at the end of the line in the above example gives the following error message at boot time: Mounting local filesystems: mount: unknown filesystem type '\' mount point defaults does not exist. Is it possible to make multiple line entries like this in fstab, or not? Kind Regards, Keith Roberts ----------------------------------------------------------------- Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] -----------------------------------------------------------------

7 10

cron jobs fail to run
by bluethundr 05 Jan '11

05 Jan '11

hey centos long time no hear! :) I'm having a small issue where the backup jobs that I set to run in the crontab of the backup user do not appear to be running. Here's how I set it up (with crontab -e as the backup user): run amanda every night (check at 2:45 and backup at 3) 45 2 * * * /usr/sbin/amcheck /var/log/amanda/crontab/amcheck.log * 3 * * * /usr/sbin/amdump /var/log/amanda/crontab/amdump.log The executables are where they are supposed to be and run if you type them in on the command line: [amandabackup@amanda ~]$ ls -l /usr/sbin/amcheck -rwsr-x--- 1 root disk 68624 Dec 29 14:08 /usr/sbin/amcheck [amandabackup@amanda ~]$ ls -l /usr/sbin/amdump -rwxr-xr-x 1 amandabackup disk 9637 Dec 29 14:08 /usr/sbin/amdump Although I'm not sure what the 's' indicates in the permissions of amcheck. And here's a tail of the cron logs [root@amanda init.d]# tail /var/log/cron Jan 5 07:01:01 newamanda crond[13612]: (root) CMD (run-parts /etc/cron.hourly) Jan 5 07:17:09 newamanda crontab[13652]: (amandabackup) BEGIN EDIT (amandabackup) Jan 5 07:18:00 newamanda crontab[13652]: (amandabackup) REPLACE (amandabackup) Jan 5 07:18:00 newamanda crontab[13652]: (amandabackup) END EDIT (amandabackup) Jan 5 07:18:01 newamanda crond[1448]: (amandabackup) RELOAD (cron/amandabackup) Jan 5 07:18:39 newamanda crond[13686]: (CRON) STARTUP (V5.0) Jan 5 07:23:01 newamanda crontab[13699]: (amandabackup) BEGIN EDIT (amandabackup) Jan 5 07:23:47 newamanda crontab[13699]: (amandabackup) END EDIT (amandabackup) Jan 5 07:25:38 newamanda crontab[13751]: (amandabackup) BEGIN EDIT (amandabackup) Jan 5 07:25:53 newamanda crontab[13751]: (amandabackup) END EDIT (amandabackup) thanks in advance! -- GPG me!! gpg --keyserver pgp.mit.edu --recv-keys F186197B

5 5

way to replace DELL PERC 6/E card???
by mcclnx mcc 05 Jan '11

05 Jan '11

we have several R900 servers with PERC 6/E card in it. Recently it we getting some message on /var/log/message say change to "write back" and change back to "write through". We figure out it is PERC 6/E card battery weak. My questions are: 1. some battery only use one year (some even shorter) and already this problem. 2. How come PERC 5/E does not have this issue? 3. where is DISK array information store for PERC 6/E? I did NOT see NVRAM on PERC 6/E card. 4. when replace PERC 6/E card and power on server sometime it will ask you "import configuration" ans some time it won't. Why? 5. When replace PERC 6/E card and power on. Server ask "import configuration" should I answer "yes"? 6. where can I find documentation which mention "import configuration"? Thanks.

4 5

Re: [CentOS] Netinstall & NFS using local server.
by Lisandro Grullon 05 Jan '11

05 Jan '11

ok, playing around with netstat I figure all the ports that need to be open in iptables for this thing to work, I figure having the firewall down was too big of a risk so why not figuring out the ports and opening them in iptables and sharing the knowledge with you guys. The following ports are to be open: 111 tcp/udp 32803 tcp/udp 32769 udp 892 tcp/udp 875 tcp/udp 2049 tcp/udp If I only mentioned tcp or udp after the port it means either or both, if you see one/two it means both protocols must be enable. Also make sure you tweaked around you /etc/sysconfig/nfs file, I noticed that by default you need to have some of the stuff from there un-comment for it to work, I will post my file so you can use it as a skeleton to change yours. If you have any questions let me know and I will try to help you out. My nfs config bellow ( this only applies to Centos 5.5), I didn't test in another release. [root@zeus /]# cat /etc/sysconfig/nfs # # Define which protocol versions mountd # will advertise. The values are "no" or "yes" # with yes being the default #MOUNTD_NFS_V1="no" #MOUNTD_NFS_V2="no" #MOUNTD_NFS_V3="no" # # # Path to remote quota server. See rquotad(8) #RQUOTAD="/usr/sbin/rpc.rquotad" # Port rquotad should listen on. RQUOTAD_PORT=875 # Optinal options passed to rquotad #RPCRQUOTADOPTS="" # # Optional arguments passed to in-kernel lockd #LOCKDARG= # TCP port rpc.lockd should listen on. LOCKD_TCPPORT=32803 # UDP port rpc.lockd should listen on. LOCKD_UDPPORT=32769 # # # Optional arguments passed to rpc.nfsd. See rpc.nfsd(8) # Turn off v2 and v3 protocol support #RPCNFSDARGS="-N 2 -N 3" # Turn off v4 protocol support #RPCNFSDARGS="-N 4" # Number of nfs server processes to be started. # The default is 8. #RPCNFSDCOUNT=8 # Stop the nfsd module from being pre-loaded #NFSD_MODULE="noload" # # # Optional arguments passed to rpc.mountd. See rpc.mountd(8) #RPCMOUNTDOPTS="" # Port rpc.mountd should listen on. MOUNTD_PORT=892 # # # Optional arguments passed to rpc.statd. See rpc.statd(8) #STATDARG="" # Port rpc.statd should listen on. #STATD_PORT=662 # Outgoing port statd should used. The default is port # is random STATD_OUTGOING_PORT=2020 # Specify callout program #STATD_HA_CALLOUT="/usr/local/bin/foo" # # # Optional arguments passed to rpc.idmapd. See rpc.idmapd(8) #RPCIDMAPDARGS="" # # Set to turn on Secure NFS mounts. #SECURE_NFS="yes" # Optional arguments passed to rpc.gssd. See rpc.gssd(8) #RPCGSSDARGS="-vvv" # Optional arguments passed to rpc.svcgssd. See rpc.svcgssd(8) #RPCSVCGSSDARGS="-vvv" # Don't load security modules in to the kernel #SECURE_NFS_MODS="noload" # # Don't load sunrpc module. #RPCMTAB="noload" # Best of luck! and thank you for the clues. >>> "Lisandro Grullon" 01/05/11 12:31 PM >>> ok, I got things working flawlessly. Call me stupid for not checking the sha1sum of the DVD ISO of the first mirror. When I checked the ISO sha1sum it didn't check the posted figure under the centos.org, so I thought something may be wrong witht hat DVD ISO. I re downloaded the ISO and its all working flawlessly now, off course I won't go into the details of the firewall issues and the actual NFS configuration, I will create a video to help people out doing this install via NFS. Anyone recomended a good screen capture application to do this task, after I create it I will posted in youtube for all to see it. Thank you all and don't forget to check all your sha1sum or md5 keys from DVD or CD ISO, it looks like we can't trust the actual mirrors. Thank you again. NFS install is mega fast in a 1Gbps network. My hard drive is the slow horse now. >>> Rajagopal Swaminathan 01/05/11 12:16 PM >>> Greetings, On 1/5/11, Lisandro Grullon wrote: > I am learning Centos from the ground up, > I need to learn how to install this via NFS. > I am aware that FTp and HTTP and options available, but what is the point of > having NFS during the install if it doesn't work. Now, Let us distinguish between first install in any setup and future installs/re-installs Now the first install part. This is the long way. at least. full install preferred. once and highly recommended -- helps later in troubleshooting network scenario quickly through the first machine. Let us call this Machine FirstFullCentos for this example. Now one needs an existing server -- say like FirstFullCentos to carry out further installs. Of course > I need to find a way to > get the installation going at least for learning purposes. If you have any > clues give me a hand, I am not planning to have to running in my environment > but at least i would have the concept under my belt. Thank you. > >>>> Nico Kadel-Garcia 01/04/11 7:25 PM >>> > On Tue, Jan 4, 2011 at 2:43 PM, Lisandro Grullon > wrote: >> Dear CentOS community, >> I have install centos via CD, DVD and Directly off the net via http and >> FTP. >> Now I want to do a NFS install from a local server and a client. Both, >> client and server are in the same vlan 10.14.10.0/255.255.255.0. > > *Don't*. From painful experience, the NFS is very fragile to local > network interruptions and tends to leave unreleased mountpoints > reported on the NFS server, which makes getting meaningful monitoring > of the server quite awkward. HUmmm.. did you say in NFS udp mode? > >> The server has a static 10.14.10.15 address and the client gets its own >> address via DHCP. I download the DVD image from one of the mirrors and >> placed it under /centos-media/centosdvd32/DVD/CentOS-5.5-i386-bin-DVD.iso >> which is a dedicated partition on the server to hold all images. After >> that >> I exported the usual entries under /etc/exports and reloaded NFS using >> /sbin/service nfs reload. This is what my exports file looks like: >> >> [root@zeus DVD]# cat /etc/exports >> /centos-media/centosdvd64 10.14.10.0/255.255.255.0(ro,sync,all_squash) >> /centos-media/centosdvd32/DVD 10.14.10.0/255.255.255.0(ro,sync,all_squash) >> >> After doing so, I also modified the entries under IPtables to allow >> traffic >> in 111 and 2049 at the UDP/TCP level and restarted the service as shown >> bellow. > > Oh, dear. This sort of thing is requirement is why you simply run a > light FTP or HTTP server and make it accessible that way. It's > nominally slower, but the difference is hardly noticeable. > >> [root@zeus DVD]# cat /etc/sysconfig/iptables >> # Firewall configuration written by system-config-securitylevel >> # Manual customization of this file is not recommended. >> *filter >> :INPUT ACCEPT [0:0] >> :FORWARD ACCEPT [0:0] >> :OUTPUT ACCEPT [0:0] >> :RH-Firewall-1-INPUT - [0:0] >> -A INPUT -j RH-Firewall-1-INPUT >> -A FORWARD -j RH-Firewall-1-INPUT >> -A RH-Firewall-1-INPUT -i lo -j ACCEPT >> -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT >> -A RH-Firewall-1-INPUT -p 50 -j ACCEPT >> -A RH-Firewall-1-INPUT -p 51 -j ACCEPT >> -A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT >> -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT >> -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT >> -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT >> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j >> ACCEPT >> -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited >> -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p tcp >> --dport >> 2049 -j ACCEPT >> -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p tcp >> --dport >> 111 -j ACCEPT >> -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p udp >> --dport >> 2049 -j ACCEPT >> -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p udp >> --dport >> 111 -j ACCEPT >> COMMIT >> >> [root@zeus DVD]# /sbin/service iptables restart >> >> When I try loading the net-install disc from the client i get to the area >> where I specify the Ip of the server and the NFS path in the server, >> hitting >> enter returns "That directory does not seem to contain CentOS installation >> tree", I triple check the ISO and I know its there with all appropriate >> permissions. Can someone tell me what am I missing? I have spend all day >> trying to get NFS working in the local vlan, i know that all ports are >> open >> within the vlan at the routers level. Any clues? > > What is the actual path you are giving it? Are you looking at the top > of the relevant NFS exported directory? And did you pout all the > contents of the ISO image there, are are you doing somehing stranger? Did you mount the ISO at the /centos-media/centosdvd64 mountpoint on 10.14.10.15? Couldn't locate the output of your mount command on 10.14.10.15. what can say, anyways HTH, Regards, Rajagopal _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

1 0

using kvm
by Jerry Geis 05 Jan '11

05 Jan '11

All - I am running a virtual windows 7 (pro 64) on centos 5.5 x86_64. I was hoping to run virtual XP inside windows7 in this configuration. I get an error about cannot start virtual XP when I try this. Do I not have something setup correctly or can I not run a "double" virtual environment? Thanks, Jerry

7 7

Re: [CentOS] Netinstall & NFS using local server.
by Lisandro Grullon 05 Jan '11

05 Jan '11

ok, I got things working flawlessly. Call me stupid for not checking the sha1sum of the DVD ISO of the first mirror. When I checked the ISO sha1sum it didn't check the posted figure under the centos.org, so I thought something may be wrong witht hat DVD ISO. I re downloaded the ISO and its all working flawlessly now, off course I won't go into the details of the firewall issues and the actual NFS configuration, I will create a video to help people out doing this install via NFS. Anyone recomended a good screen capture application to do this task, after I create it I will posted in youtube for all to see it. Thank you all and don't forget to check all your sha1sum or md5 keys from DVD or CD ISO, it looks like we can't trust the actual mirrors. Thank you again. NFS install is mega fast in a 1Gbps network. My hard drive is the slow horse now. >>> Rajagopal Swaminathan 01/05/11 12:16 PM >>> Greetings, On 1/5/11, Lisandro Grullon wrote: > I am learning Centos from the ground up, > I need to learn how to install this via NFS. > I am aware that FTp and HTTP and options available, but what is the point of > having NFS during the install if it doesn't work. Now, Let us distinguish between first install in any setup and future installs/re-installs Now the first install part. This is the long way. at least. full install preferred. once and highly recommended -- helps later in troubleshooting network scenario quickly through the first machine. Let us call this Machine FirstFullCentos for this example. Now one needs an existing server -- say like FirstFullCentos to carry out further installs. Of course > I need to find a way to > get the installation going at least for learning purposes. If you have any > clues give me a hand, I am not planning to have to running in my environment > but at least i would have the concept under my belt. Thank you. > >>>> Nico Kadel-Garcia 01/04/11 7:25 PM >>> > On Tue, Jan 4, 2011 at 2:43 PM, Lisandro Grullon > wrote: >> Dear CentOS community, >> I have install centos via CD, DVD and Directly off the net via http and >> FTP. >> Now I want to do a NFS install from a local server and a client. Both, >> client and server are in the same vlan 10.14.10.0/255.255.255.0. > > *Don't*. From painful experience, the NFS is very fragile to local > network interruptions and tends to leave unreleased mountpoints > reported on the NFS server, which makes getting meaningful monitoring > of the server quite awkward. HUmmm.. did you say in NFS udp mode? > >> The server has a static 10.14.10.15 address and the client gets its own >> address via DHCP. I download the DVD image from one of the mirrors and >> placed it under /centos-media/centosdvd32/DVD/CentOS-5.5-i386-bin-DVD.iso >> which is a dedicated partition on the server to hold all images. After >> that >> I exported the usual entries under /etc/exports and reloaded NFS using >> /sbin/service nfs reload. This is what my exports file looks like: >> >> [root@zeus DVD]# cat /etc/exports >> /centos-media/centosdvd64 10.14.10.0/255.255.255.0(ro,sync,all_squash) >> /centos-media/centosdvd32/DVD 10.14.10.0/255.255.255.0(ro,sync,all_squash) >> >> After doing so, I also modified the entries under IPtables to allow >> traffic >> in 111 and 2049 at the UDP/TCP level and restarted the service as shown >> bellow. > > Oh, dear. This sort of thing is requirement is why you simply run a > light FTP or HTTP server and make it accessible that way. It's > nominally slower, but the difference is hardly noticeable. > >> [root@zeus DVD]# cat /etc/sysconfig/iptables >> # Firewall configuration written by system-config-securitylevel >> # Manual customization of this file is not recommended. >> *filter >> :INPUT ACCEPT [0:0] >> :FORWARD ACCEPT [0:0] >> :OUTPUT ACCEPT [0:0] >> :RH-Firewall-1-INPUT - [0:0] >> -A INPUT -j RH-Firewall-1-INPUT >> -A FORWARD -j RH-Firewall-1-INPUT >> -A RH-Firewall-1-INPUT -i lo -j ACCEPT >> -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT >> -A RH-Firewall-1-INPUT -p 50 -j ACCEPT >> -A RH-Firewall-1-INPUT -p 51 -j ACCEPT >> -A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT >> -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT >> -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT >> -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT >> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j >> ACCEPT >> -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited >> -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p tcp >> --dport >> 2049 -j ACCEPT >> -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p tcp >> --dport >> 111 -j ACCEPT >> -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p udp >> --dport >> 2049 -j ACCEPT >> -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p udp >> --dport >> 111 -j ACCEPT >> COMMIT >> >> [root@zeus DVD]# /sbin/service iptables restart >> >> When I try loading the net-install disc from the client i get to the area >> where I specify the Ip of the server and the NFS path in the server, >> hitting >> enter returns "That directory does not seem to contain CentOS installation >> tree", I triple check the ISO and I know its there with all appropriate >> permissions. Can someone tell me what am I missing? I have spend all day >> trying to get NFS working in the local vlan, i know that all ports are >> open >> within the vlan at the routers level. Any clues? > > What is the actual path you are giving it? Are you looking at the top > of the relevant NFS exported directory? And did you pout all the > contents of the ISO image there, are are you doing somehing stranger? Did you mount the ISO at the /centos-media/centosdvd64 mountpoint on 10.14.10.15? Couldn't locate the output of your mount command on 10.14.10.15. what can say, anyways HTH, Regards, Rajagopal _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

1 0

Converting to maildir
by Jason Pyeron 05 Jan '11

05 Jan '11

Looking for a guide on converting to Maildir. Here are our relevant specs. sendmail-8.12.11-4.RHEL3.6 (we may not be able to upgrade this due to too many modifications) imap-2002d-14 procmail-3.22-10.el3.centos.0 To a maildir setup... <rant> I was in a panic today at work because the backup server is filling up too quickly, backing up peoples email. Further it is not backing up often enough. I just lost all of today's email. I hate mbox and imap and outlook... </rant> All the maildir stuff I can find is postfix oriented. From what I can read in procmail man pages, it supports maildir and sendmail uses procmail as the LDA, hence sendmail "supports" it. -Jason -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00.

14 28

Re: [CentOS] Netinstall & NFS using local server.
by Lisandro Grullon 05 Jan '11

05 Jan '11

Thank you for the responses, still I don't find an answer. I am learning Centos from the ground up, I need to learn how to install this via NFS. I am aware that FTp and HTTP and options available, but what is the point of having NFS during the install if it doesn't work. I need to find a way to get the installation going at least for learning purposes. If you have any clues give me a hand, I am not planning to have to running in my environment but at least i would have the concept under my belt. Thank you. >>> Nico Kadel-Garcia 01/04/11 7:25 PM >>> On Tue, Jan 4, 2011 at 2:43 PM, Lisandro Grullon wrote: > Dear CentOS community, > I have install centos via CD, DVD and Directly off the net via http and FTP. > Now I want to do a NFS install from a local server and a client. Both, > client and server are in the same vlan 10.14.10.0/255.255.255.0. *Don't*. From painful experience, the NFS is very fragile to local network interruptions and tends to leave unreleased mountpoints reported on the NFS server, which makes getting meaningful monitoring of the server quite awkward. > The server has a static 10.14.10.15 address and the client gets its own > address via DHCP. I download the DVD image from one of the mirrors and > placed it under /centos-media/centosdvd32/DVD/CentOS-5.5-i386-bin-DVD.iso > which is a dedicated partition on the server to hold all images. After that > I exported the usual entries under /etc/exports and reloaded NFS using > /sbin/service nfs reload. This is what my exports file looks like: > > [root@zeus DVD]# cat /etc/exports > /centos-media/centosdvd64 10.14.10.0/255.255.255.0(ro,sync,all_squash) > /centos-media/centosdvd32/DVD 10.14.10.0/255.255.255.0(ro,sync,all_squash) > > After doing so, I also modified the entries under IPtables to allow traffic > in 111 and 2049 at the UDP/TCP level and restarted the service as shown > bellow. Oh, dear. This sort of thing is requirement is why you simply run a light FTP or HTTP server and make it accessible that way. It's nominally slower, but the difference is hardly noticeable. > [root@zeus DVD]# cat /etc/sysconfig/iptables > # Firewall configuration written by system-config-securitylevel > # Manual customization of this file is not recommended. > *filter > :INPUT ACCEPT [0:0] > :FORWARD ACCEPT [0:0] > :OUTPUT ACCEPT [0:0] > :RH-Firewall-1-INPUT - [0:0] > -A INPUT -j RH-Firewall-1-INPUT > -A FORWARD -j RH-Firewall-1-INPUT > -A RH-Firewall-1-INPUT -i lo -j ACCEPT > -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT > -A RH-Firewall-1-INPUT -p 50 -j ACCEPT > -A RH-Firewall-1-INPUT -p 51 -j ACCEPT > -A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT > -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT > -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT > -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT > -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j > ACCEPT > -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited > -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p tcp --dport > 2049 -j ACCEPT > -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p tcp --dport > 111 -j ACCEPT > -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p udp --dport > 2049 -j ACCEPT > -A RH-Firewall-1-INPUT -s 10.14.10.0/24 -m state --state NEW -p udp --dport > 111 -j ACCEPT > COMMIT > > [root@zeus DVD]# /sbin/service iptables restart > > When I try loading the net-install disc from the client i get to the area > where I specify the Ip of the server and the NFS path in the server, hitting > enter returns "That directory does not seem to contain CentOS installation > tree", I triple check the ISO and I know its there with all appropriate > permissions. Can someone tell me what am I missing? I have spend all day > trying to get NFS working in the local vlan, i know that all ports are open > within the vlan at the routers level. Any clues? What is the actual path you are giving it? Are you looking at the top of the relevant NFS exported directory? And did you pout all the contents of the ISO image there, are are you doing somehing stranger? _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

2 1

noob question about mock
by nux＠li.nux.ro 05 Jan '11

05 Jan '11

Hi, Been recently more and more tempted to use mock for building rpms, but looking at it I have one problem. As far as I could read about it, mock essentially rebuilds srpms so to use it I would need a separate "classical" build environment to create those srpms in the first place. Am I right or did I get something terribly wrong? Cheers! -- Nux! www.nux.ro

8 17

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss