Discuss October 2010

discuss@lists.centos.org

256 participants
226 discussions

terminal capture hardware
by Boris Epstein 25 Oct '10

25 Oct '10

Hello listmates, Has anyone had to capture the video feed off of a terminal (VGA)? If so would there be any recommendations as to what device would work best under Linux for that purpose? Thanks. Boris.

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network interface up but no data
by Nat N 25 Oct '10

25 Oct '10

Hi List, I am running a x86_64 Centos server, after a reboot the network has decided to not work.. this particular machine has 8 eth ports eth0-7. eth0 and eth3 were bonded (mode 1 ) after reboot the bond did not work. It came up OK but no data was passing through it. all other interfaces on the machine were working. I decided to remove the bond, so after removing the bond i was left with eth0 using the same IP as the bond used. however it still does the same thing, it starts up with no errors but i cannot even ping the default gateway, tcpdump shows nothing on the interface. I have made sure of the following * no iptables installed * kernel modules for the NIC are loaded with no errors * the bond kernel module is not installed / all bond configs have been removed Below is some info on the interface, it should be noted that all others are OK the only 2 that were having the issue are eth0 and eth3 (the ex-bonded ones) server1:/etc/sysconfig/network-scripts# ip route | grep 172.18 172.18.16.0/24 dev eth0 proto kernel scope link src 172.18.16.1 default via 172.18.16.254 dev eth0 # ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:24:49:C8:66:98 inet addr:172.18.16.1 Bcast:172.18.16.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:7223 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:463918 (453.0 KiB) Interrupt:226 Memory:dc000000-dc012800 If you look closely TX and RX are massively different, but I am not seeing anything on tcpdump even there is a large number of TX packets. Any ideas? Nathan

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what are these gstreamer codecs
by DarkKnight BrightWarrior 25 Oct '10

25 Oct '10

Hi Recently I was searching for gstreamer codecs and I saw codecs with name libgstmmrdemux.so, libgstmmrximagesink.so and libgstmmrxvimagesink.so etc. I could not find their origins. Do any one knows what are these codecs and origin package of these codecs. thanks

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Re: [CentOS] CentOS Digest, Vol 69, Issue 24
by portablemanagement＠yahoo.com 24 Oct '10

24 Oct '10

Spam Sent on the Sprint® Now Network from my BlackBerry® -----Original Message----- From: centos-request(a)centos.org Sender: centos-bounces(a)centos.org Date: Sun, 24 Oct 2010 12:00:02 To: <centos(a)centos.org> Reply-To: centos(a)centos.org Subject: CentOS Digest, Vol 69, Issue 24 Send CentOS mailing list submissions to centos(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos or, via email, send a message with subject or body 'help' to centos-request(a)centos.org You can reach the person managing the list at centos-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS digest..." Today's Topics: 1. graphics driver (Ritika Garg) 2. Re: graphics driver (John R Pierce) 3. Re: [SOLVED] more software raid questions (fred smith) 4. Re: [SOLVED] more software raid questions (Nataraj) 5. Maybe OT : strange wildcard behaviour (Niki Kovacs) 6. Re: [SOLVED] more software raid questions (fred smith) 7. Re: Maybe OT : strange wildcard behaviour (Nicolas Thierry-Mieg) ---------------------------------------------------------------------- Message: 1 Date: Sat, 23 Oct 2010 23:53:15 +0530 From: Ritika Garg <ritikagarg25(a)gmail.com> Subject: [CentOS] graphics driver To: centos(a)centos.org Message-ID: <AANLkTi=UHL4Gnv=ov7_qqwB0VjPxHqCS97pzZuYEj+7b(a)mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" I did installation of CentOS5.5 in text mode and made changes at the following places in the file /etc/X11/xorg.conf : section "device" identifier : "vesa" driver:"vesa" section "screen" device:"vesa" Also in the file /etc/inittab I changed id:3:initdefault to id:5:initdefault so that I can boot linux in graphical mode. I had to make the changes in xorg.conf because the visibility of the graphics was so poor that it was impossible to work. The installation was done on Dell Inspiron N5010 with the chipset: Intel(R) HM57 Express chipset LPC interface controller 3B0B which is a part of Mobile intel 5 series The video controller is: Intel (R) HD Graphics Although graphics is there but the resolution and refresh rate are limited to 1024*768 and 0Hz, so I need to find the video driver. I had given "i810" in xorg.conf but that didn't work. Which driver is recommended? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.centos.org/pipermail/centos/attachments/20101023/6cf09554/atta… ------------------------------ Message: 2 Date: Sat, 23 Oct 2010 12:12:30 -0700 From: John R Pierce <pierce(a)hogranch.com> Subject: Re: [CentOS] graphics driver To: CentOS mailing list <centos(a)centos.org> Cc: Ritika Garg <ritikagarg25(a)gmail.com> Message-ID: <4CC3339E.2070409(a)hogranch.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 10/23/10 11:23 AM, Ritika Garg wrote: > I did installation of CentOS5.5 in text mode and made changes at the > following places in the file /etc/X11/xorg.conf : > section "device" > identifier : "vesa" > driver:"vesa" > section "screen" > device:"vesa" > > Also in the file /etc/inittab I changed id:3:initdefault to > id:5:initdefault so that I can boot linux in graphical mode. > I had to make the changes in xorg.conf because the visibility of the > graphics was so poor that it was impossible to work. > The installation was done on Dell Inspiron N5010 with the chipset: > Intel(R) HM57 Express chipset LPC interface controller 3B0B which is a > part of Mobile intel 5 series > The video controller is: Intel (R) HD Graphics > Although graphics is there but the resolution and refresh rate are > limited to 1024*768 and 0Hz, so I need to find the video driver. > I had given "i810" in xorg.conf but that didn't work. Which driver is > recommended? I don't have one of those, but that system has the graphics controller integrated into the CPU (!) rather than the chipset... Its called Arrandale, and I believe the correct X.org driver is IGDNG (Intel Graphics Device Next Generation) ------------------------------ Message: 3 Date: Sat, 23 Oct 2010 17:34:26 -0400 From: fred smith <fredex(a)fcshome.stoneham.ma.us> Subject: Re: [CentOS] [SOLVED] more software raid questions To: CentOS mailing list <centos(a)centos.org> Message-ID: <20101023213426.GA4749(a)fcshome.stoneham.ma.us> Content-Type: text/plain; charset=us-ascii On Thu, Oct 21, 2010 at 11:03:27AM -0700, Nataraj wrote: > fred smith wrote: > > > > Thanks for the additional information. > > > > I'll try backing up everything this weekend then will take a stab at it. > > > > someone said earlier that the differing raid superblocks were probably > > the cause of the misassignment in the first place. but I have no clue > > how the superblocks could have become messed up, can any of you comment > > on that? willl I need to hack at that issue, too, before I can succeed? > > > > thanks again! > > > > > >> Nataraj > >> > I would first try adding the drives back in with: > > mdadm /dev/mdN -a /dev/sdXn > > Again, this is after having stopped the bogus md arrays. Nataraj, that worked fine, didn't need to --force it. Now I'm back to having two devices in md0 and two in md1, and they're the RIGHT two! :) Put the box in single-user mode to do the work, then after the array finished resyncing, rebooted and it came up with the right two md devices. I appreciate your tutoring me on this, you've been most helpful. Thanks a bunch! Oh, can you refer me to any good documentation on how to admin a software raid system? One aimed for people, like me, who are computer literate, but have never trained as a sysadmin, and who don't know much about RAID... thanks again! Fred > > If that doesn't work, I would try assemble with a --force option, which > might be a little more dangerous than the hot add, but probably not > much. I can say that when I have a drive fall out of an array I am > always able to add it back with the first command (-a). As I mentioned, > I do have bitmaps on all my arrays, but you can't change that until you > rebuild the raidset. > > I believe these comands will take care of everything. You shouldn't have > to do any diddling of the superblocks at a low level, and if the problem > is that bad, you might be best to backup and recreate the whole array or > engage the services of someone who knows how to muck with the data > structures on the disk. I've never had to use anything other than mdadm > to manage my raid arrays and I've never lost data with linux software > raid in the 10 or more years that I've been using it. I've found it to > be quite robust. Backing up is just a precaution that is a good idea for > anyone to take if they care about their data. > > If these problems reoccur on a regular basis, you could have a bad > drive, a power supply problem or a cabling problem. Assuming your drives > are attached to SATA, SCSI or SAS controller, you can use smartctl to > check the drives and see if they are getting errors or other faults. > smartctl will not work with USB or firefire attached drives. > > Nataraj > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. ------------------------------- Romans 5:8 (niv) ------------------------------ ------------------------------ Message: 4 Date: Sat, 23 Oct 2010 22:05:30 -0700 From: Nataraj <incoming-centos(a)rjl.com> Subject: Re: [CentOS] [SOLVED] more software raid questions To: CentOS mailing list <centos(a)centos.org> Message-ID: <4CC3BE9A.6090207(a)rjl.com> Content-Type: text/plain; charset=us-ascii; format=flowed fred smith wrote: > On Thu, Oct 21, 2010 at 11:03:27AM -0700, Nataraj wrote: > >> fred smith wrote: >> >>> Thanks for the additional information. >>> >>> I'll try backing up everything this weekend then will take a stab at it. >>> >>> someone said earlier that the differing raid superblocks were probably >>> the cause of the misassignment in the first place. but I have no clue >>> how the superblocks could have become messed up, can any of you comment >>> on that? willl I need to hack at that issue, too, before I can succeed? >>> >>> thanks again! >>> >>> >>> >>>> Nataraj >>>> >>>> >> I would first try adding the drives back in with: >> >> mdadm /dev/mdN -a /dev/sdXn >> >> Again, this is after having stopped the bogus md arrays. >> > > Nataraj, that worked fine, didn't need to --force it. Now I'm back to > having two devices in md0 and two in md1, and they're the RIGHT two! :) > Put the box in single-user mode to do the work, then after the array > finished resyncing, rebooted and it came up with the right two md devices. > > I appreciate your tutoring me on this, you've been most helpful. > > Thanks a bunch! > > Oh, can you refer me to any good documentation on how to admin a > software raid system? One aimed for people, like me, who are > computer literate, but have never trained as a sysadmin, and who > don't know much about RAID... > > thanks again! > > Fred > Hi Fred, You might try this one, since it seems to be one of the more up to date: https://raid.wiki.kernel.org/index.php/Linux_Raid Also the mdadm man page and running "mdadm --help". Oh, and there's this, however, some of the pages just happen to be in Chinese... http://wiki.centos.org/Search?action=fullsearch&titlesearch=1&value=raid <http://wiki.centos.org/Search?action=fullsearch&titlesearch=1&value=raid> Nataraj Nataraj ------------------------------ Message: 5 Date: Sun, 24 Oct 2010 11:39:20 +0200 From: Niki Kovacs <contact(a)kikinovak.net> Subject: [CentOS] Maybe OT : strange wildcard behaviour To: centos(a)centos.org Message-ID: <1287913160.8756.7.camel(a)babasse.presbytere.montpezat> Content-Type: text/plain; charset="UTF-8" Hi, I'm currently working through some basic HOWTOS (Linux Fundamentals 1-4 by Gentoo founder Daniel Robbins) on a CentOS 5.5 server, just to keep in shape. I've just noticed a curious wildcard behaviour, which I can't really explain. Let's say I wanted to list all the files or directories in /tmp starting with any uppercase character. Normally, I would do this : $ ls -d /tmp/[A-Z]* Curiously enough, this command lists *all* the content of /tmp, consisting of a majority of files and directories starting with a *lowercase* character. I've tested this on two different machines, with the same results. I'm puzzled. Can anybody offer an explanation for this curious behaviour ? Cheers, Niki ------------------------------ Message: 6 Date: Sun, 24 Oct 2010 07:40:08 -0400 From: fred smith <fredex(a)fcshome.stoneham.ma.us> Subject: Re: [CentOS] [SOLVED] more software raid questions To: CentOS mailing list <centos(a)centos.org> Message-ID: <20101024114008.GA13293(a)fcshome.stoneham.ma.us> Content-Type: text/plain; charset=us-ascii On Sat, Oct 23, 2010 at 10:05:30PM -0700, Nataraj wrote: > fred smith wrote: > > On Thu, Oct 21, 2010 at 11:03:27AM -0700, Nataraj wrote: > > > >> fred smith wrote: > >> > >>> Thanks for the additional information. > >>> > >>> I'll try backing up everything this weekend then will take a stab at it. > >>> > >>> someone said earlier that the differing raid superblocks were probably > >>> the cause of the misassignment in the first place. but I have no clue > >>> how the superblocks could have become messed up, can any of you comment > >>> on that? willl I need to hack at that issue, too, before I can succeed? > >>> > >>> thanks again! > >>> > >>> > >>> > >>>> Nataraj > >>>> > >>>> > >> I would first try adding the drives back in with: > >> > >> mdadm /dev/mdN -a /dev/sdXn > >> > >> Again, this is after having stopped the bogus md arrays. > >> > > > > Nataraj, that worked fine, didn't need to --force it. Now I'm back to > > having two devices in md0 and two in md1, and they're the RIGHT two! :) > > Put the box in single-user mode to do the work, then after the array > > finished resyncing, rebooted and it came up with the right two md devices. > > > > I appreciate your tutoring me on this, you've been most helpful. > > > > Thanks a bunch! > > > > Oh, can you refer me to any good documentation on how to admin a > > software raid system? One aimed for people, like me, who are > > computer literate, but have never trained as a sysadmin, and who > > don't know much about RAID... > > > > thanks again! > > > > Fred > > > Hi Fred, > > You might try this one, since it seems to be one of the more up to date: > https://raid.wiki.kernel.org/index.php/Linux_Raid > > Also the mdadm man page and running "mdadm --help". > > Oh, and there's this, however, some of the pages just happen to be in > Chinese... > http://wiki.centos.org/Search?action=fullsearch&titlesearch=1&value=raid > <http://wiki.centos.org/Search?action=fullsearch&titlesearch=1&value=raid> Once again, thanks! the raid.wiki... one looks good. I'm afraid that a Chinese-language resource isn't going to help me much... but perhaps someone else will see this and find it helpful. -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- "For the word of God is living and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart." ---------------------------- Hebrews 4:12 (niv) ------------------------------ ------------------------------ Message: 7 Date: Sun, 24 Oct 2010 13:53:48 +0200 From: Nicolas Thierry-Mieg <Nicolas.Thierry-Mieg(a)imag.fr> Subject: Re: [CentOS] Maybe OT : strange wildcard behaviour To: CentOS mailing list <centos(a)centos.org> Message-ID: <4CC41E4C.1040805(a)imag.fr> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Niki Kovacs wrote: > Hi, > > I'm currently working through some basic HOWTOS (Linux Fundamentals 1-4 > by Gentoo founder Daniel Robbins) on a CentOS 5.5 server, just to keep > in shape. > > I've just noticed a curious wildcard behaviour, which I can't really > explain. Let's say I wanted to list all the files or directories in /tmp > starting with any uppercase character. Normally, I would do this : > > $ ls -d /tmp/[A-Z]* > > Curiously enough, this command lists *all* the content of /tmp, > consisting of a majority of files and directories starting with a > *lowercase* character. I've tested this on two different machines, with > the same results. I'm puzzled. > > Can anybody offer an explanation for this curious behaviour ? probably "expected" behavior, depending on your locale. google for LC_COLLATE. LC_COLLATE='C' ; ls -d /tmp/[A-Z]* should do what you want. ------------------------------ _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos End of CentOS Digest, Vol 69, Issue 24 **************************************

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problem regarding rpmbuild : creating rpm for python files
by saurabh verma 23 Oct '10

23 Oct '10

HI people , I am not sure whether this is right mailing list for this question , but i tried subscribing to redhat rpm list , failed to do so . I'm facing a issue while creating RPM for python punjab http://code.stanziq.com/punjab/ I've created a spec file which contains the list of files to packaged http://pastie.org/1236027 And when i try to run rpmbuild -ba command on this spec file , rpmbuild tried to optimize the python byte coded files , which i can see from ( i guess macros ) " + /usr/lib/rpm/brp-python-bytecompile" , and fails after that . http://pastie.org/1236040 please help me about controlling this behaviour so that I can skip the "brp-python-bytecompile" section . Thanks in advance , Saurabh Verma

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black display during installation of CentOS5.5
by Ritika Garg 23 Oct '10

23 Oct '10

I was doing the installation on DELL inspiron laptop and this problem occurred for CentOS5.5 but not for CentOS5.3. So shall I install CentOS5.3 and then do "yum update"?

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How to install and update a src rpm?
by Alexander Farber 23 Oct '10

23 Oct '10

Hello, is there please a way to install and later update a src rpm - instead of locating and downloading that package manually? I've run: "yum install rpm-build mock yum-utils" successfully. But when I try to run "yumdownloader --source httpd", I get the error listed at the bottom of my mail. Do I maybe need to add a file to /etc/yum.repos.d/ ? I'd like to have httd source somewhere in a good defined place (will it be $HOME/src or /usr/src ?) because I'm trying to develop an Apache module. I'm using CentOS 5.5. Thank you Alex afarber@centos:src> sudo yumdownloader --source httpd Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: centos.psw.net * base: centos.psw.net * extras: centos.psw.net * updates: centos.psw.net Excluding Packages from CentOS-5 - Base Finished Excluding Packages from CentOS-5 - Updates Finished Enabling pgdg84-source repository pgdg84-source | 2.6 kB 00:00 pgdg84-source/primary_db | 21 kB 00:00 http://yum.pgrpms.org/srpms/8.4/redhat/rhel-5-i386/repodata/primary.sqlite.…: [Errno -3] Error performing checksum Trying other mirror. pgdg84-source/primary_db | 21 kB 00:00 http://yum.pgrpms.org/srpms/8.4/redhat/rhel-5-i386/repodata/primary.sqlite.…: [Errno -3] Error performing checksum Trying other mirror. Traceback (most recent call last): File "/usr/bin/yumdownloader", line 293, in ? util = YumDownloader() File "/usr/bin/yumdownloader", line 42, in __init__ self.main() File "/usr/bin/yumdownloader", line 78, in main self.setupSourceRepos() File "/usr/bin/yumdownloader", line 118, in setupSourceRepos self._getSacks(archlist=archlist, thisrepo=repo.id) File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 501, in _getSacks self.repos.populateSack(which=repos) File "/usr/lib/python2.4/site-packages/yum/repos.py", line 260, in populateSack sack.populate(repo, mdtype, callback, cacheonly) File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 176, in populate db_fn = repo._retrieveMD(mydbtype) File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1524, in _retrieveMD cache=self.http_caching == 'all') File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 827, in _getFile raise Errors.NoMoreMirrorsRepoError, errstr yum.Errors.NoMoreMirrorsRepoError: failure: repodata/primary.sqlite.bz2 from pgdg84-source: [Errno 256] No more mirrors to try.

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drbd update 8.3.8.1
by Shad L. Lords 22 Oct '10

22 Oct '10

Can we get a refresh of the drbd packages to 8.3.8.1 There was a fix to the resync protocol. 8.3.8 would stall under certain circumstances. Thanks, -Shad

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dual external monitors via an NVIDIA laptop?
by Kevin Kempter 22 Oct '10

22 Oct '10

Hi All; I have a Dell M6400 with an NVIDIA Quadr FX 3700M card. Is there any way for me to setup 2 external monitors as opposed to one external monitor and the laptop screen? Thanks in advance

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CentOS 5.5 hangs on Acer Veriton X498G
by Paul Ortega 22 Oct '10

22 Oct '10

I have installed CentOS 5.5 (2.6.18-194.17.1.el5PAE) on a number of Acer Veriton X498G desktop computers. They seem to randomly hang when nobody is logged in at the console, i.e. I notice a hanged computer but have not heard complaints about computers hanging while a user was at the keyboard. The symptoms are: Blank screen. Power LED on. Network LED blinking. No response to keyboard or mouse. No response to ping. Arp request from computer on same subnet gets "incomplete" for MAC address. Cannot ssh into computer, "no route to host" error message. The power management BIOS settings are set to default: ACPI aware OS yes ACPI suspend mode S3 Deep power off mode enabled Power on RTC alarm disabled Power on PCIE devices enabled Power on modem ring enabled lspci: 00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 12) 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 12) 00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06) 00:16.2 IDE interface: Intel Corporation 5 Series/3400 Series Chipset PT IDER Controller (rev 06) 00:16.3 Serial controller: Intel Corporation 5 Series/3400 Series Chipset KT Controller (rev 06) 00:19.0 Ethernet controller: Intel Corporation 82578DC Gigabit Network Connection (rev 06) 00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06) 00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a6) 00:1f.0 ISA bridge: Intel Corporation 5 Series Chipset LPC Interface Controller (rev 06) 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06) 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06) Has anyone else seen similar?

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