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4641 discussions

how to build CentOS image/iso from scratch
by jojo 04 Nov '13

04 Nov '13

Hi, I am a newbie about for building CentOS iso, i want to build specific image based on CentOS du to stability, clean of the CentOS :) i find some wiki from homepage of CentOS.org (http://CentOS.org) except nothing about for building image/iso from scratch :( anyone could give me any hits for building instruction for CentOS image ? Thanks, - Jojo

2 3

devtoolset 2.0 released
by Dave Johansen 01 Nov '13

01 Nov '13

http://rhn.redhat.com/errata/RHEA-2013-1226.html devtoolset 2.0 was just released. Any chance we can get a build of it like the previous one? Thanks, Dave

7 8

ssh block bug in CentOS 6.4
by jupiter 30 Oct '13

30 Oct '13

Hi, I have recently found a problem of randomly being blocked by ssh connection to a 64 bit CentOS 6.4 virtual machine, the dmesg shown following error: .......... INFO: task gnome-settings-:16976 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. gnome-setting D 0000000000000000 0 16976 1 0x00000080 ffff8800dc3e5dd8 0000000000000082 0000000000000000 ffff8800be54faf0 ffff8800dc3e5d98 ffff8800daf07540 ffff8800daf07540 ffff8800daf07540 ffff8800daf07af8 ffff8800dc3e5fd8 000000000000fb88 ffff8800daf07af8 Call Trace: [<ffffffff811a1bc0>] ? mntput_no_expire+0x30/0x110 [<ffffffff8150efbe>] __mutex_lock_slowpath+0x13e/0x180 [<ffffffff8150ee5b>] mutex_lock+0x2b/0x50 [<ffffffff8118e890>] lookup_create+0x30/0xd0 [<ffffffff81192589>] sys_symlinkat+0x99/0x120 [<ffffffff81186b4e>] ? vfs_lstat+0x1e/0x20 [<ffffffff81186b74>] ? sys_newlstat+0x24/0x50 [<ffffffff810dc8f7>] ? audit_syscall_entry+0x1d7/0x200 [<ffffffff81192626>] sys_symlink+0x16/0x20 [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b -------- Searched from Internet and found similar bug report for Fedora 19 declared the issue to a blocker. It seems to me that the bug I encountered is the same in Fedora 19. While Fedora has a workaround patch, I am not clear if that bug has been reported to CentOS dev and if you have a patch as well? Please advice and update. Thank you. Kind regards, jupiter

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Toolset for building custom iso
by Oguz Yilmaz 12 Sep '13

12 Sep '13

Hello, I will to build a new iso for myself with custom packages and kickstarts. Currently which tools do you use to build your centos builds? According to my research, pungi and revisor are some tools. Do you have any recommendation? Regards,

3 2

Current gdm update without initscripts update on CentOS 5
by Simon Matter 06 Sep '13

06 Sep '13

Hi, The current gdm update https://rhn.redhat.com/errata/RHSA-2013-1213.html comes with an updated initscripts package. Currently a CentOS 5 gets the gdm update but not the initscripts package. Isn't it dangerous for those running with X because gdm doesn't create /tmp/.X11-unix anymore and the new initscripts, which creates it now, is not already available? Regards, Simon

2 1

Kernel bug fix that restores SSD performance -- testing sought
by Akemi Yagi 03 Sep '13

03 Sep '13

According to this bug report: http://bugs.centos.org/view.php?id=6548 (originally from http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=642729 ) a patch introduced in kernel 2.6.32 causes a performance drop in [certain] SSDs. This patch was later reverted in the mainline kernel. With this kernel, the reporter says, the SSD performance is now what is expected from the spec. I have built a centosplus kernel that has the referenced patch reverted. My limited test (using hdparm) did show some improvement with this kernel. kernel-ml from ELRepo (currently at 3.10.0-1.el6) gave a number similar to this plus kernel. http://people.centos.org/toracat/kernel/6/plus/bug6548/ Please test if you can and report back with your findings (good, bad, no diff ...). Note that the packages are not signed and are provided for testing purposes only. Thanks in advance for your input. Akemi / toracat

3 4

initial testing version for DevTools 1.1
by Tru Huynh 16 Aug '13

16 Aug '13

Hi, For the daring users ;) http://people.centos.org/tru/devtools-1.1/ enjoy and report Cheers, Tru -- Tru Huynh (mirrors, CentOS i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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Sync-Up-summary august 14th 2013
by Christoph Galuschka 16 Aug '13

16 Aug '13

Hi, the major topics have been: - forummigration: so far on test instances looking good, import work mostly completed, some DB and VM tuning still to do. A dedicated eMail will be setup to get in contact with in case of outdated email-accounts. Current ETA for the new forum in september. - blog: will be depending in the site move - t_functional: some more tests and fixes made their way into git over the last few weeks. Most instability issues with the tests are from various network related issues. freeipa tests will only use on VM, so no further outside dependency. I hope I didn't miss anything important. cheers Christoph

1 0

Notes from the first Sync up 2013-July-24
by Karanbir Singh 26 Jul '13

26 Jul '13

Hi, ci.dev.centos.org: - run through pending merges ( tigalch / athmane ) - do the reimzul integration ( kb ) - nightly tests, esure they are robust enough to rely on --- tests already running nightly --- monitor for another 2 weeks, then look at flaky / shallow tests --- promote publicly, make noise around it - ensure tests are running with latest kernel, reboot needed, this is already being done ( tigalch ) - ensure backups in place for everything ( kb / athmane ) - get a private git repo for puppet / opennebula content ( kb ) Website: - migrate the site to a more reliable host, with more resources while we wait for the new design work to complete ( kb ) - setup a blog / story interface - test-migrate the forums to phpbb ( TrevorH1 / KB ) --- ensure a bunch of people have access to play with the entire forums content, migrated - not just 1 forum as we had done in the past --- write a url redictor from old-url to new-url ( kb ) VIP Program - use name 'Friends' represented as 'Friends of CentOS' - centos.org/Friends and centos.org/Friends/<person> urls for aggregated and person specific content - domain to be used for email / contact TBD ( but not .centos.org ) - Bootstrap resources on Google's compute engine ( pending physical hardware allocation from .centos.org pool ) ( Phibs / Tigalch ) Dojos: - keep them coming --- Bucharest + Madrid + Edinburgh confirmed --- Houston most likely ( but not confirmed ) The next CentOS Syncup is scheduled for 31st July 16:00 UTC in #centos-devel, if there is anything you want to bring up : either as something you want to do, or something you think needs to be done ( even if you are unable to actually do it ) then please come along and raise the issue. If you are unable to make it, please email either me or Christoph in advance along with notes, and we will make sure the issue is raised and discussed during the session. Regards -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc

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weekly syncup
by Karanbir Singh 18 Jul '13

18 Jul '13

hi, In conversation with Christoph earlier today, the idea came up that we should have a weekly public syncup in #centos-devel and try to round up all ( or as many ) lose ends as possible. Given that we now have a large enough contributor base, it might be good to have a project wide ( even if in sections ) backlog, that others can jump in with as well. This would be stuff like forum-migration updates, artwork updates and various things around the project. A summary of this would then be a nice-to-post into a centos.org/whatsup blog. With that in mind, I'm going to propose Wednesday's at 16:00 UTC in #centos-devel @ irc.freenode.net : Timebox'ed to 60 min, and only open to agenda items submitted atleast 2 hrs in advance. I will take on the task of running these meetings, till such time as someome else comes along and fights me for it. Regards -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc

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