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One of my servers wont boot today
by Jason T. Slack-Moehrle 31 Jan '12

31 Jan '12

Hi All, One of my servers upon a restart today comes up with an error checking filesystems: fsck.ext3: no such file or directory while trying to open /dev/VolGroup-1/Logvol00. /dev/VolGroup-1/LogVol00. The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device> I dropped into the shell and tried mounting: mount -t ext3 /dev/VolGroup-1/LogVol00 I tried booting to media and do 'linux rescue' but it could not mount file filesystems either and nothing at all ends up in /mnt/sysimage. I think this was caused by installing quotas and changing /etc/fstab to add ,usrquota,grpquota. There are 2 x 1tb drives, software raid, mirrored. Can anyone provide advice on how to solve? I would think if I could get /etc/fstab edited back to normal I would be all set. -Jason

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no luck with CentOS 6.2 patch vboxaddition_4.1.8
by Henri Fischer 30 Jan '12

30 Jan '12

Hi, After applying the patch as described by the wiki ( wiki.centos.org/HowTos/Virtualization/VirtualBox/CentOSguest) install.sh still results in a Fail at: Building the OpenGL support module. I don't know how to start debugging myself. Any advise would be welcome. Kind regards, Henri

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CentOS-announce Digest, Vol 83, Issue 11
by centos-announce-request＠centos.org 30 Jan '12

30 Jan '12

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. CEBA-2012:0066 CentOS 5 rgmanager Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Mon, 30 Jan 2012 12:35:42 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:0066 CentOS 5 rgmanager Update To: centos-announce(a)centos.org Message-ID: <20120130123542.GA30767(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:0066 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-0066.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 4d71106839a80f8db9a9753dc08f7763252783e573ab5ec6b6608760cfe05aaa rgmanager-2.0.52-21.el5.centos.1.i386.rpm x86_64: b3f802233a48b6710e54faecc7c752617e76a2042e9d4b4c5e33ed23c9097775 rgmanager-2.0.52-21.el5.centos.1.x86_64.rpm Source: 34283f67f1cf55456fe45dade02dc9e32471a79c443cafb74253fdf860b92b62 rgmanager-2.0.52-21.el5.centos.1.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #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 83, Issue 11 ***********************************************

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CentOS 6.2 KDE desktop with KDM - need guidance
by Arun Khan 30 Jan '12

30 Jan '12

I want a CentOS 62 (amd64) KDE desktop with KDM as the GUI login manager. My system environment is as follows: Host OS: openSUSE 11.4 .(amd64) with VirtualBox (64 bit) GuestOS: CentOS 6.2 (amd64) 10GB virtual disk I chose the "Customize Now" option in the installer and chose "KDE" group w/o the "Desktop" group. The system boots to a CLI console. I can login and see that the KDE rpms including kdm are installed but startx gives no joy [1]. I figured that the "Desktop" group is required so chose it in the 2nd try. This time system boots with the GDM login manager; I can choose a GNOME or a KDE desktop from the GDM. Searched around but could not find the GUI switcher applet to switch from GNOME to KDE. Tried the method in this link (albeit it is for 5.x) <http://www.centos.org/docs/5/html/5.1/Deployment_Guide/s2-sysconfig-desktop…> In 6.2 the file "/etc/sysconfig/desktop" does *not* exist, so I created it with the two variables - still no joy. Finally, I hacked the script "/etc/X11/prefdm" and changed the order of the two lines in the Fallback to put kdm before gdm as shown below. <code> .... snip .... [ -n "$preferred" ] && exec $preferred "$@" >/dev/null 2>&1 </dev/null # Fallbacks, in order # order of GDM/KDM lines, changed by akk to initialize KDM exec kdm "$@" >/dev/null 2>&1 </dev/null exec gdm "$@" >/dev/null 2>&1 </dev/null .... snip .... </code> With above change I am getting a KDM login manager. To be noted that line "[ -n "$preferred" ] && exec $preferred ..." does not work since my preference is KDE/KDM (it should have initialized to KDM) but instead it goes into the Fallback section wherein gdm (the original Display Manager) is initialized irrespective of what is in /etc/sysconfig/desktop. Although, I have achieved my objective with this hack, I think I am missing something (a CLI/GUI utility) which would have allowed me to change to KDM w/o hacking the script. Also, I noticed that the KDE menus did not list any item to install/remove and update the software packages on the system. I Are the gtk apps. "Add/Remove Software" and "Software Update" the only tools for this tasks? I need a minimalist KDE desktop environment with the minimum of gtk libs and GNOME apps. Thanks for any guidance/pointers to be able do so. [1] The installer should have automatically selected the "Desktop" group if it is essential for a graphical desktop. TIA -- Arun Khan

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A Hardware Observation (and Thank You To John Pierce)
by Jason T. Slack-Moehrle 30 Jan '12

30 Jan '12

A few days ago, John Pierce made a comment about Intel network cards and that they are more reliable and a better overall card than most. (This is not exactly what he said, but rather I am paraphrasing) My small cluster of servers all had generic PCI nics in them (I was not using any onboard NICS). Today, I replaced the NICS with Intel Pro 1000 PCI-E NICS and replaces our small 5 port TP-Link GB switch with a nice 8 port Cisco GB switch and what a world of difference. The network is zippier for sure. Copying large files between machines using 'scp' is faster, our websites come up better (testing from my wife's work) too. I know some have joked about the PB conversation in terms of not realizing the amount of electricity and space it will take, but I really do read and pay attention and try not to ask totally stupid questions. John Pierce, thank you! -Jason

2 1

(OT): Horde initial SQL setup
by Bill Campbell 29 Jan '12

29 Jan '12

I haven't been able to find anything useful on the horde sites, and I haven't found anything useful with 'yum search'. I am trying to set up horde webmail using the PEAR install on a new CentOS 5 system intending to migrate existing horde-3.x sites to horde-4.x. The PEAR installation procedure asked for the database type, db name, and password. I had not created the mysql database before running the installation thinking that this would be done as part of the installation (silly me :-). I know little or nothing about the internals of PEAR as I generally avoid PHP if at all possible so I don't know what's necessary to nuke the entire installation and start from scratch other than to restore the VMware VM from the snapshot I made before starting this project. In the past I have done this manually from the various tarballs available from horde.org, and these had the appropriate SQL scripts to initialize mysql and postgresql back ends. The PEAR installation doesn't seem to have these, nor do the sources obtained with 'git'. They do have upgrade scripts to update from various earlier version of horde which could work for existing installations, but would require more work with new installs. I tried finding appropriate SRPMs so I could look at their SPEC files to see how others have done this, but haven't been able to find ones for horde-4.x. The options seem to be: + Get SQL scripts to create the necessary databases. + Find the appropriate SPRMs for the horde components to see how they take care of this in their %post installation processing. + Uninstall the existing stuff using pear, and start from scratch after first creating the appropriate database. + Give up and continue to use the older versions of horde components which do work. Suggestions, pointers to documentation, ??? Bill -- INTERNET: bill(a)celestial.com Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way Voice: (206) 236-1676 Mercer Island, WA 98040-0820 Fax: (206) 232-9186 Skype: jwccsllc (206) 855-5792 We have a two party system and what a party they are giving themselves. Since 1960 government spending has grown 8 times as fast as the GNP.

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Advise on recovering 2TB RAID1
by Fajar Priyanto 29 Jan '12

29 Jan '12

Hi all, I have one drive fails on a software 2TB RAID1. I have removed the failed partition from mdraid and now ready to replace the failed drive. I want to ask for opinion if there is better way to do that other than: 1. Put the new HDD. 2. Use parted to recreate the same partition scheme. 3. Use mdadm to rebuild the RAID. Especially #2 is rather tricky. I have to create an exact partition scheme. Can I just clone the partition table without the data in it using parted? How? Thank you, Fajar.

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Re: [CentOS] Virtual machine => Physical machine - fix screen resolution?
by Mark LaPierre 29 Jan '12

29 Jan '12

On 01/28/2012 09:01 PM, Philip Rhoades wrote: > People, > > I sent this note to the Fedora virtual list so I thought I might try > here . . > > I installed a Fedora 16 x86_64 virtual machine on a Fedora 14 x86_64 > server but used a physical disk (/dev/sdb = /dev/vda) so I could get the > new server going almost completely in virtual mode and then when it was > ready to go, reboot the machine on the new drive. This process went > extremely well (thanks to all the Fedora developers!) but there were a > few glitches left to sort out - one of which was the screen resolution > for both the console and in X. It seems the default virtual screen is > 1024x768 but I need 1280x1024(or 768). I tried adding a vga parameter to > the linux line in the grub.cfg file but that only temporarily changed > the resolution during bootup. xorg.conf doesn't get used much anymore - > do I need to create it for this case? Is there some way to tell Fedora > to rediscover the maximum screen resolution somehow? > > Thanks, > > Phil. Hey Phil, I'm assuming that you are using a graphical desktop. Can you adjust the resolution with System/Preferences/Display? -- _ °v° /(_)\ ^ ^ Mark LaPierre Registerd Linux user No #267004

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Samba Printer Share Access Denied
by Mark LaPierre 29 Jan '12

29 Jan '12

CentOS 6.2 [mlapier@mushroom ~]$ uname -a Linux mushroom.patch 2.6.32-220.4.1.el6.i686 #1 SMP Mon Jan 23 22:37:12 GMT 2012 i686 i686 i386 GNU/Linux [mlapier@mushroom ~]$ Applicable sections of smb.conf: [global] workgroup = MYGROUP server string = Samba Server Version %v log file = /var/log/samba/log.%m max log size = 50 security = user passdb backend = tdbsam load printers = yes cups options = raw printcap name = /etc/printcap printing = cups [printers] comment = All Printers path = /var/spool/samba browseable = no guest ok = yes writable = yes printable = yes available = yes [root@mushroom init.d]# ./smb configtest Syntax OK [root@mushroom init.d]# [root@mushroom init.d]# smbd -V Version 3.5.10-114.el6 [root@mushroom init.d]# [mlapier@mushroom ~]$ rpm -qa | grep samba samba-3.5.10-114.el6.i686 samba-client-3.5.10-114.el6.i686 samba-common-3.5.10-114.el6.i686 samba-winbind-devel-3.5.10-114.el6.i686 samba-domainjoin-gui-3.5.10-114.el6.i686 samba-winbind-clients-3.5.10-114.el6.i686 samba4-libs-4.0.0-23.alpha11.el6.i686 samba-swat-3.5.10-114.el6.i686 samba-doc-3.5.10-114.el6.i686 samba-winbind-3.5.10-114.el6.i686 samba-winbind-krb5-locator-3.5.10-114.el6.i686 [mlapier@mushroom ~]$ [root@mushroom samba]# service smb restart Shutting down SMB services: [ OK ] Starting SMB services: [ OK ] [root@mushroom samba]# tail log.smbd [2012/01/27 22:46:03, 0] smbd/server.c:1140(main) smbd version 3.5.10-114.el6 started. Copyright Andrew Tridgell and the Samba Team 1992-2010 [2012/01/27 22:46:03.703807, 0] smbd/server.c:500(smbd_open_one_socket) smbd_open_once_socket: open_socket_in: Address already in use [2012/01/27 22:46:03.704728, 0] smbd/server.c:500(smbd_open_one_socket) smbd_open_once_socket: open_socket_in: Address already in use [root@mushroom samba]# [mlapier@mushroom etc]$ cat printcap # This file was automatically generated by cupsd(8) from the # /etc/cups/printers.conf file. All changes to this file # will be lost. Samsung-ML-1740|Samsung ML-1740:rm=mushroom.patch:rp=Samsung-ML-1740: HP-Color-LaserJet-cp2025dn|HP Color LaserJet cp2025dn:rm=mushroom.patch:rp=HP-Color-LaserJet-cp2025dn: WorkForce-1100|EPSON WorkForce 1100:rm=mushroom.patch:rp=WorkForce-1100: [mlapier@mushroom etc]$ [mlapier@mushroom init.d]$ rpm -qa | grep cups cups-libs-1.4.2-44.el6.i686 cups-1.4.2-44.el6.i686 gutenprint-cups-5.2.5-2.el6.i686 cups-pk-helper-0.0.4-12.el6.i686 [mlapier@mushroom init.d]$ My file system shares work perfectly. I can see the printers listed on the Win XP client. I can install the printers on the XP machine but I can't print to them. When I double click on the printer icon I get the usual printer manager but on the top bar it states that access is denied. I've tried everything I can think of and everything that I've read on the Internet over the last month but still no joy. I even disabled SElinux. The only thing I see is "Address already in use" error in the log.smbd file. Does anyone see anything in my configuration that doesn't look just right to you? Is there anything else that you need to see? -- _ °v° /(_)\ ^ ^ Mark LaPierre Registerd Linux user No #267004

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Installing CENTOS 6.1 to Intel notebook
by Keith Wilkinson 29 Jan '12

29 Jan '12

I have a notebook with HM65 Express chipset and (internal Core i5 2520M) HD Graphics 3000, but a graphical install of CENTOS 6.1 froze the PC. I was able to install by selecting “Install with basic video driver”, but that left the internal display distorted and the external display not recognized. I found a fix for the problem at http://jehurst.wordpress.com/2011/06/26/rhel-6-for-the-clueless-intel-graph… but wonder if anyone knows if this problem (of graphical install freezing) has been fixed in CENTOS 6.2, or (if not) if RedHat is aware of it.

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