Discuss August 2012

discuss@lists.centos.org

190 participants
167 discussions

write-intent bitmap
by Markus Falb 25 Aug '12

25 Aug '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, On CentOS 6 I noticed very high load after installing and while the md raid 1 array was syncing. I found lots of complaints about performance degradation for md raid with enabled write-intent bitmap. See http://blog.liw.fi/posts/write-intent-bitmaps/ for example. So I wanted to it off. I let it sync and then removed the bitmap. Do you know of a way to not enable a write-intent bitmap while installing? I had a look at the Kickstart section in Upstreams Installation guide but found nothing. My only idea was a %post section stop the sync (hmm, but how, I think I have to consult mdadm(8) remove the bitmap start the sync again Maybe there is better way? Some kind of trick? I realize that I can set a bigger chunk size (but how big?) for the bitmap. But again, how do I do it while installing/kickstarting. - -- Kind Regards, Markus Falb -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAlA4mosACgkQYoWFBIJE9eV5awCfSahv1b7DJ7YdHiJVI6ewjx8x De0An215k6nzYH+lk+1hsGMSzM59TnMV =580F -----END PGP SIGNATURE-----

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San Diego, CentOS Drinks : Aug 30th at 6:30pm
by Karanbir Singh 25 Aug '12

25 Aug '12

hi Guys, I'm going to be in San Diego next week for a few days ( at LinuxCon 2012 ). And we've managed to get an evening drinks session organised on the 30th Aug evening from 6:30pm onward. And the beer is sponsored by the guys at Expensify.com! Also, I will have some CentOS Stickers and some CentOS T-Shirts to give away. We need to know numbers and confirm details, so please make sure you sign up here : http://centos-sandiego-2012.eventbrite.com/ Looking forward to seeing some of you guys there! - KB -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc

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Re: [CentOS] System will not boot - faulty fstab?
by James B. Byrne 24 Aug '12

24 Aug '12

On Fri, August 24, 2012 03:05, Leonard den Ottolander wrote: > Hello James, > > On Thu, 2012-08-23 at 19:06 -0400, James B. Byrne wrote: >> I discovered the problem with the cd-rom. It is just that, a >> cd-rom, and I was trying to boot from a dvd rescue disk. I >> have corrected that problem, edited fstab, and rebooted the >> system, apparently with success, so far. > > On failed boot one used to be presented with a single user mode root > login. Didn't the system offer you that option after failing to mount > said partition? It might be you need to "escape away" the graphical > boot screen to see that prompt. It still does, and I was able to edit fstab in it. I just could not save the changes because the file system was read-only. > > FYI, the interactive boot mode probably isn't very helpful in a > situation like this as mounting partitions is not an option one can > skip :) . > Ah well. Nothing lost then. But why does the boot loader offer the 'I' option if one cannot make use of it? -- *** 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

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tigervnc-server-module crashes after EL 6.3 update
by Cal Webster 24 Aug '12

24 Aug '12

We began experiencing failed vnc connections to the console display on servers that have been updated to EL 6.3. No such failures have occurred on similar connections to EL 6.2 servers. On the client machine a normal vncviewer display appears with the expected graphical login until the mouse pointer is moved within the boundaries of the vncviewer window. At this point the window closes and an error message appears in both a pop-up window and in the terminal window in which the session was initiated stating "read: Connection reset by peer (104)". On the server end, a core dump is generated and a abrt bug report is created. /var/log/messages ---------------------------------------------- Aug 14 11:00:30 jato2 abrt[11411]: File '/usr/bin/Xorg' seems to be deleted Aug 14 11:00:30 jato2 abrt[11411]: Saved core dump of pid 7892 (/usr/bin/Xorg) to /var/spool/abrt/ccpp-2012-08-14-11:00:30-7892 (42041344 bytes) Aug 14 11:00:30 jato2 abrtd: Directory 'ccpp-2012-08-14-11:00:30-7892' creation detected ---------------------------------------------- This bug has been reported in the CentOS bug tracker here: 0005824: tigervnc-server-module keep crashing http://bugs.centos.org/view.php?id=5824 However, this appears to be a bug upstream. The source RPM provided with CentOS is identical to that of upstream with no modifications. Also, there is an upstream bug reported that appears to have the same symptoms. I have added a comment to the upstream bug report (listed below) if anyone wishes to see the details. tigervnc-server-module crashes with dual screen setup https://bugzilla.redhat.com/show_bug.cgi?id=820443 We have verified that rebuilding the unmodified source RPM for tigervnc produces a tigervnc-server-module RPM that does not suffer from this bug. Removing the original tigervnc-server-module package and replacing it with the rebuilt one fixes the problem. I've duplicated the problem on 2 EL 6.3 x86_64 single-head display machines and have verified the fix. Tomorrow, I'll duplicate the problem on a dual-head x86_64 machine that currently still works after updating to EL 6.2 then confirm the the fix. ./Cal

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CentOS-announce Digest, Vol 90, Issue 15
by centos-announce-request＠centos.org 24 Aug '12

24 Aug '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. CESA-2012:1201 Moderate CentOS 5 tetex Update (Johnny Hughes) 2. CESA-2012:1202 Moderate CentOS 6 libvirt Update (Johnny Hughes) 3. CEBA-2012:1199 CentOS 6 kernel Update (Johnny Hughes) 4. CEBA-2012:1204 CentOS 5 zsh FASTTRACK Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Thu, 23 Aug 2012 23:12:26 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2012:1201 Moderate CentOS 5 tetex Update To: centos-announce(a)centos.org Message-ID: <20120823231226.GA7876(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2012:1201 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-1201.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 0564129724071c9d3c33c19bd8a994b80453747f89547d5edf4f8cbb1167fed1 tetex-3.0-33.15.el5_8.1.i386.rpm 3bf40a29d1c92a76c772ba1c7f83a0af36bdf42cb79a09ad08e7898c712b9014 tetex-afm-3.0-33.15.el5_8.1.i386.rpm 41808c10844fdbcce8241f93383b8552a4d3516a666fe0923236f739cd6cbcae tetex-doc-3.0-33.15.el5_8.1.i386.rpm 1abb7885788c2adbe46117f1e86eaa56075d3a6afae374caa6082a35dae0b5f5 tetex-dvips-3.0-33.15.el5_8.1.i386.rpm 6d315be666aa954528c32efde8451074edb0c186705a8d58b5e603ce05e05927 tetex-fonts-3.0-33.15.el5_8.1.i386.rpm 267a3d7b9a965a8b2b4a737738b5a23fdcd80e825dda6ed7168883a390a55212 tetex-latex-3.0-33.15.el5_8.1.i386.rpm 42ef5e9bde52926e568996bdcce951b49dbf840fe038fc10adb2bf76a0c3e496 tetex-xdvi-3.0-33.15.el5_8.1.i386.rpm x86_64: 18de8aa0d8089108d0b6b00a7a6dca23c6ef5e18d578056bf8b19c04116efc21 tetex-3.0-33.15.el5_8.1.x86_64.rpm 1fb19d69a5d32d86e76cd6ac66d928580c07c8408f648fa33a7d02f3775a5768 tetex-afm-3.0-33.15.el5_8.1.x86_64.rpm feed0b7c8b60dd1fecd98f2cf975ba0e9ca19b69e1977aabed3dd9f23c3b3600 tetex-doc-3.0-33.15.el5_8.1.x86_64.rpm 7f6a0f68b17996f0c907a797db5de29308ed116adf941d26c94db4edc256c5fe tetex-dvips-3.0-33.15.el5_8.1.x86_64.rpm 8883e029a1cf9df243ba670ae23f4f1c4ba9ad6d17af1b0d854afb59e9a3a353 tetex-fonts-3.0-33.15.el5_8.1.x86_64.rpm b4859d48001cebbfaca912f857815620ee6790ea72fbcf0dcc89bd2e956573af tetex-latex-3.0-33.15.el5_8.1.x86_64.rpm c3153d4a7d531ceac4460f1c46b37639ec47888e461d6ab77db1803be9d94d88 tetex-xdvi-3.0-33.15.el5_8.1.x86_64.rpm Source: d8ed0829ae85d447dc246fd8b41c7c99e25ba6aa7d4ad30c192c185af4ec9663 tetex-3.0-33.15.el5_8.1.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Fri, 24 Aug 2012 01:09:18 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2012:1202 Moderate CentOS 6 libvirt Update To: centos-announce(a)centos.org Message-ID: <20120824010918.GA13591(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2012:1202 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-1202.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: c86207d53a90797f2659ae93fc74e390ea91865e82b79f19306bbc82296bfbaa libvirt-0.9.10-21.el6_3.4.i686.rpm 19707fde2b0258bb63c28306e9b031c5d3be7732b745d63044719f6c77939543 libvirt-client-0.9.10-21.el6_3.4.i686.rpm bdfa3bdd638087f209c892fad41dca818a18678a69ed37124941821d1426ef87 libvirt-devel-0.9.10-21.el6_3.4.i686.rpm e89174fafbf143612e3b3859d1da36cb858b2655a5dbdb8b95a3d795f746d876 libvirt-python-0.9.10-21.el6_3.4.i686.rpm x86_64: 32187f8cfdac84b250ac662683cb11c6a46e9d9231f5d86dfb036ac0bfac2c03 libvirt-0.9.10-21.el6_3.4.x86_64.rpm 19707fde2b0258bb63c28306e9b031c5d3be7732b745d63044719f6c77939543 libvirt-client-0.9.10-21.el6_3.4.i686.rpm d5e2d059a1c4c64b35966b6b689101fa7bed6f8c1382c5df85e082e7220ae959 libvirt-client-0.9.10-21.el6_3.4.x86_64.rpm bdfa3bdd638087f209c892fad41dca818a18678a69ed37124941821d1426ef87 libvirt-devel-0.9.10-21.el6_3.4.i686.rpm 235fe5df23fc24177a86a353ea483f5bcb7cc8640013d87fdf5fcb8a8370f919 libvirt-devel-0.9.10-21.el6_3.4.x86_64.rpm 73881454d29cfa8277f976888109c26790c78b6f11179040d2054884570cd3f0 libvirt-lock-sanlock-0.9.10-21.el6_3.4.x86_64.rpm 9c7a65cee4e4a968f316f775ab3c6ad6a5805afa2dedb5eda76cde99cc6ec2ca libvirt-python-0.9.10-21.el6_3.4.x86_64.rpm Source: e441840625ccef1722752cd3cea17fb049276328875688ac2ac96c2cb44342a2 libvirt-0.9.10-21.el6_3.4.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Fri, 24 Aug 2012 05:26:26 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1199 CentOS 6 kernel Update To: centos-announce(a)centos.org Message-ID: <20120824052626.GA24916(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1199 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1199.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 971ca5387d219d9167c20bce91c25a964edfc52eb45bd988181a28b54f944ddf kernel-2.6.32-279.5.2.el6.i686.rpm 71e25ae35b2973fd7a863acc2ff54a69a3eed68848876753db3f60e60428d2e8 kernel-debug-2.6.32-279.5.2.el6.i686.rpm 7820e1f8c71af460fc1dc050b803954a8b1d966f164b9b50e89fb41025fdc109 kernel-debug-devel-2.6.32-279.5.2.el6.i686.rpm 06a76df20532bf79a323df53f27c37ad9946ae8651c040833cfb215503342100 kernel-devel-2.6.32-279.5.2.el6.i686.rpm b96f379a46859f068185f7e8703e3c1ffbf34a4659fa64f3a95aa6045169ebb6 kernel-doc-2.6.32-279.5.2.el6.noarch.rpm 538e4dd08461ec62ae6bf1b9da35d32812993748081d9be5ff58f3d2604375b3 kernel-firmware-2.6.32-279.5.2.el6.noarch.rpm 2934af12898ba1ae339ee050b2eb1fbd97a6ad893d6302a87d8b0053fa33caed kernel-headers-2.6.32-279.5.2.el6.i686.rpm 09e4cbd8164eb10963681e85bdb4506f379b59f0d447043c2524ad6747ce00a0 perf-2.6.32-279.5.2.el6.i686.rpm 7e844898857c93cbafcbde56092543fb42c8f58ff574a936ba17e87c5378ebfa python-perf-2.6.32-279.5.2.el6.i686.rpm x86_64: 8fc09d646ba61ead80cd16cd946d0a40b5baa479157654cb2014ca8a185ca555 kernel-2.6.32-279.5.2.el6.x86_64.rpm f72225479b194cd6c1d590b66320e9603735fede0328b8d8ff2148efd3e476ad kernel-debug-2.6.32-279.5.2.el6.x86_64.rpm 66066fe52e2cb46378817161fa719c2f40406a047f53bb8ea4165a93a18b42ec kernel-debug-devel-2.6.32-279.5.2.el6.x86_64.rpm 66ea3790f30294f11ec53fc369ee2891d21afb01fbf92732f3fed906f2f673d3 kernel-devel-2.6.32-279.5.2.el6.x86_64.rpm aec47899356c269bede34a05673c111bd4bebee83de83e2bc3de7e4d08cf32e9 kernel-doc-2.6.32-279.5.2.el6.noarch.rpm 46a6ec8357341787d87b9b90be9ae3a0436c375e9a1f42b3a5768d72a1d9d6c6 kernel-firmware-2.6.32-279.5.2.el6.noarch.rpm 119a768658c21bea1cd98b1bdb873b06b043f7f95b6e01a1fd27719711ef10e2 kernel-headers-2.6.32-279.5.2.el6.x86_64.rpm f2133df7ccf1ecf1e020e87bb1cfa673de62e91052966e7f609fc9c57cb79dba perf-2.6.32-279.5.2.el6.x86_64.rpm 5e0c3b046eddab01f2341697afc6bb5c08930aea6b0f5059e05eb6ae2bb041ef python-perf-2.6.32-279.5.2.el6.x86_64.rpm Source: d8da378ee1e720c307ee99fd1fa17eb6548b77914031ee0407d8659d84f0b54e kernel-2.6.32-279.5.2.el6.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 4 Date: Fri, 24 Aug 2012 11:03:47 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1204 CentOS 5 zsh FASTTRACK Update To: centos-announce(a)centos.org Message-ID: <20120824110347.GA9203(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1204 Upstream details at : http://rhn.redhat.com/errata/RHBA-2012-1204.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 991172ef95aad5047adccbb4c0352aa2b8d733dc20a59371205a857b888fffd8 zsh-4.2.6-8.el5.i386.rpm 8b8fb2d6b9a94a69fd0d9ef0751f3097ea873360aea3f2cd6841676c3ec32d17 zsh-html-4.2.6-8.el5.i386.rpm x86_64: ce1f557b209079f20a1fb2e7495bd72c2b4056616361b94ddccd7080d3eaaff1 zsh-4.2.6-8.el5.x86_64.rpm 0a598d7a2f673e5d8012aa6bb25e82846364cf32cee651148e3d934794d1f0f4 zsh-html-4.2.6-8.el5.x86_64.rpm Source: f15e0119ae07c0bc606d13ef5868672ed2d27066a3b7aea5a6bf25fe38ab8416 zsh-4.2.6-8.el5.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 90, Issue 15 ***********************************************

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Order of sata/sas raid cards
by Jobst Schmalenbach 24 Aug '12

24 Aug '12

Hi. I bought a new Adaptec 6405 card including new (much larger) SAS drives (arrays). I need to copy content of the current SATA (old adaptec 2405) drives to the new SAS drives. When I put the new controller into the machine, the card is seen and I can see that the kernel loads the new drives and the old drives. The problem is that the new drives are loaded as SDA and SDB, which then stops the kernel loading, becasue it cannot find root and get kernel panic. Is there a way to tell the kernel in which order to load the drives and assign the drive order in a way that the new drives are assigned SDC and SDD and the old drives get SDA and SDB? thanks Jobst -- Why are a wise man and a wise guy opposites? | |0| | Jobst Schmalenbach, jobst(a)barrett.com.au, General Manager | | |0| Barrett Consulting Group P/L & The Meditation Room P/L |0|0|0| +61 3 9532 7677, POBox 277, Caulfield South, 3162, Australia

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Gambas Compile on Any Version of Centos
by Casey Kemp 24 Aug '12

24 Aug '12

I've unsuccessfully been attempting to get Gambas to compile on Centos 5.8. I've seen comment that it also doesn't compile on Centos 6.2. Has anyone gotten a successful compile of Gambas on any version of Centos. I'd greatly appreciate hearing from you.

2 2

System will not boot - faulty fstab?
by James B. Byrne 24 Aug '12

24 Aug '12

I believe that I made a boo boo recently when recovering some unused disk space. Without going into painfully embarrassing detail I need to delete an entry in fstab for a now non-existent logical volume. The system reports that the there is a bad superblock for said logical volume. Mainly I expect because there isn't one anymore. How do I edit fstab so as to remove the mount request? For some reason the system will not boot from the cdrom and the I for interactive option is just blown by when the HDD boot starts. -- *** 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

3 4

secure boot.
by Jimmy Bradley 24 Aug '12

24 Aug '12

I've been reading up some about the new "secure boot" that's coming out on new machines when MS releases Win 8. Has a workaround been developed yet for those of us who don't want to run windows? Typically, I mostly build my own desktops, and I install cent os right from the start, but sometimes I do buy a desktop, and naturally it comes with windows on it, so I have to do a wipe and load, to get rid of windows. Jim

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CentOS-announce Digest, Vol 90, Issue 14
by centos-announce-request＠centos.org 23 Aug '12

23 Aug '12

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