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Mock patch speeds up 'mock init' to 5 Seconds from cache (linked, rsync'd)
by Brian Schueler 28 Oct '09

28 Oct '09

Hi all, i've made a patch that extends mock-helper for the two new internal commands 'save' and 'restore' for use with the new added script /usr/libexec/mock-cache-copy that generates a root cache, which is linked against the root tree and which is copied statically. This takes the double harddisk space of the root tree (buildsys-build install) but hard disks are big enough today. The advantage of this is that the files in the cache are hard-linked to the files in the mock root tree that makes it extremely fast to delete files (mock clean phase) and to relink them (copy -ax ... on mock init phase) while unpacking the cache. The static copy is used to repair touched and modified (linked) files with rsync. With this new option 'mock init' takes only 5 Seconds (between Enter press and shell prompt). The source package (with the patch included) can be found on the Beuth repo at: http://141.64.26.2/repo/bs/el5/SRPMS/mock-0.6.13-5.bs.el5.src.rpm Especially my old PowerBook G4 / 400 MHz PowerPC (running C-5 ppc edition) benefits of this feature (keeps the CPU away from tar and gzip and uses the slow harddisk efficiently). I hope this useful patch find a way to upstream (Fedora). Please give me feedback and comparing benchmarks (against mock's standard cache). ( The global config /etc/mock/defaults.cfg is set up for using the additional caching method). cheers, B.S.

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lightweight LiveCD installer for CentOS-5.4 available - zyx-liveinstaller
by Douglas McClendon 27 Oct '09

27 Oct '09

I thought some of you might like to know- The latest version of zyx-liveinstaller (0.1.15) now supports the CentOS-5.4 LiveCD/USB. http://filteredperception.org/smiley/projects/zyx-liveinstaller/ This is a ~100kb rpm that can be installed in a running LiveCD/USB session. Once run, zyx-liveinstaller will then allow you to install the running system permanently to system-disk. This is like the anaconda/liveinst installer available with the Fedora LiveCD/USB, except- a) it works _rebootlessly_! After installation completes, you simply eject the LiveCD or remove the LiveUSB and continue using the now installed system. b) it is still relatively immature, but gets the job done (as far as I've tested). Installation to external usb drives also works. c) it can easily be included in a custom CentOS LiveCD spin, without the downside of having to have an unsupported version of anaconda on the system. d) it is a fairly simple pygtk frontend for a bash backend. In fact, all you really need is the single bash script /usr/sbin/zyx-liveinstaller-cli. NOTE: that like the Fedora LiveCD installer, it is a *destructive* install. Target partitions/volumes get reformatted. ----------------- To do a commandline installation with no seperate /boot partition, the rootfs on /dev/sda2, and the swap partition on /dev/sda3, you would just run- rpm -Uvh \ http://filteredperception.org/downloads/zyx-liveinstaller/zyx-liveinstaller… zyx-liveinstaller-cli \ /dev/sda2 /dev/sda2 /dev/sda3 ----------------- Note, that if you throw a copy of the 100kb rpm inside the LiveUSB version of CentOS-5.4, you have a totally portable offline installable version of CentOS. This is definitely not as seriously usable as the traditional DVD installer on bootable USB form, but might have its uses. Bugs, comments, criticisms, and feedback are encouraged. Now that I've got this working, I'll really get to work helping Patrice crossport my old LiveUSB persistence patches to Fedora-8/9 to CentOS-5.*. peace... -dmc P.S. To get CentOS-5.4 LiveUSB to boot on my acer aspire one, I had to change the syslinux.cfg line of 'vesamenu.c32' to 'menu.c32' (and copy menu.c32). Otherwise an unusable and very grey syslinux bootloader. Hopefully just a problem with this netbook.

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Re: [CentOS-devel] [CentOS] EDAC Kernel Panic 2.6.9-78 and above
by Chris Miller 26 Oct '09

26 Oct '09

Apologies if this is not the correct place to post this issue. I've gotten some feedback on the user's list, but it seems that getting some developer insight may be appropriate before opening a bug report. Please see the original thread here : http://lists.centos.org/pipermail/centos/2009-October/084011.html memtest86+ found no issues on 8 passes. Since this server has been solid for a couple of years, I'm inclined to think this is a bug, or EDAC is finding an issue in some other subsystem (not memory), but the error info is not sufficient to determine what is really going on. I have a few Super Micro servers (various motherboards and revisions) with this chipset running various kernels and versions of CentOS (with/without i5000_edac). That said, I think I'm in a position to provide some helpful information to approach this issue, I just need to know where to go with it. I'm happy to build a custom kernel with additional code to diagnose the issue. If needed in the short term, can I simply unload i5000_edac without crashing the server. Thoughts? Chris

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Forum Issues
by Phil Schaffner 23 Oct '09

23 Oct '09

The CentOS fora seem to be seriously hosed ATM. Trying to access anything at the top level page gives errors like: An Error Occured SELECT t.*, u.name, u.uname,u2.name as last_post_name, u2.uname as last_poster, p.post_time as last_post_time, p.poster_name as last_poster_name, p.icon, p.post_id, p.post_karma, p.require_reply, pt.post_text FROM xoops_bb_topics t LEFT JOIN xoops_users u ON u.uid = t.topic_poster LEFT JOIN xoops_bb_posts p ON p.post_id = t.topic_last_post_id LEFT JOIN xoops_bb_posts_text pt ON pt.post_id = t.topic_last_post_id LEFT JOIN xoops_users u2 ON u2.uid = p.uid WHERE (p.post_time > 1247552420 OR t.topic_sticky=1) AND t.forum_id = 51 AND t.approved = 1 AND p.approved = 1 ORDER BY t.topic_sticky DESC, p.post_time DESC If the page does not automatically reload, please click here

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QA accessibility
by Phil Schaffner 18 Oct '09

18 Oct '09

A message on centos-users has raised a question in my mind about the openness of the QA process. I'm pretty sure that there is no desire to greatly expand the QA team, but on the other hand a few more serious QA testers might be worthwhile. I started to reply to the message below with a link to an announcement of opportunity to join the QA team from the centos-devel list, and possibly to add a bit to the "Contribute" page, but decided it might be better to bounce the idea around here instead. Announcement on CentOS-devel: http://lists.centos.org/pipermail/centos-devel/2007-February/001200.html > [CentOS-devel] CentOS 5 Beta Initial Test Release > Lance Davis lance at uklinux.net > Wed Feb 21 13:14:16 UTC 2007 > > We are about to release an initial internal test release of CentOS 5 beta > to our qa team. > > If folks here want to be a part of that test they need to join the > centos-qa list (http://lists.centos.org/mailman/listinfo/centos-qa) and > send a message to this list (centos-devel) saying that > they would like to be a part of the qa process and join the qa team, > with details of relevant experience if you are not known to the core > developers. > > Membership of the centos-qa list will then be approved. > > > Lance > > -- > uklinux.net - > The ISP of choice for the discerning Linux user. http://wiki.centos.org/Contribute#head-1c14314cdaa251daca6c3a79ff7510c5c05d… Proposed addition to Contribute: "Testing of new releases is done by the CentOS Quality Assurance (QA) team. People interested in helping with QA should first join the [http://lists.centos.org/mailman/listinfo/centos-devel CentOS Developer's list] and [http://lists.centos.org/mailman/listinfo/centos-qa CentOS QA list] and send a message to mailto:CentOS-devel@centos.org, with details of relevant experience if not already known to the core developers, saying that they would like to join the QA team." I notice that the QA list is not on the CentOS list of lists. Not sure if this is by design, or has just been overlooked. http://lists.centos.org/mailman/listinfo Phil -------- Original Message -------- Subject: [CentOS] Centos 5.4 'prerelease-access' - is there such a thing? Date: Sat, 12 Sep 2009 08:22:17 -0500 From: Peter l Jakobi <lists(a)kefk.oa.shuttle.de> Reply-To: CentOS mailing list <centos(a)centos.org> To: centos(a)centos.org <centos(a)centos.org> Hi, excluding the Frankengrade from CENTOS5.3 to upstream RHEL5.4, is there are procedure / repository access / nightly builds / ... to what will be CENTOS 5.4? URLs? Howtos? Discussion threads or notes? I checked help, wiki and forums and google, but came up empty. Of course, this kind of use is depending on the way the new upstream RHEL sources are processed, so maybe there won't be a complete set of packages at all until maybe one or two weeks before the release. But again I got no lucky search hits for this kind of internals either. I'll gladly collect and summarize for a (hopefully easier locatable) wiki-page to be :). cu, Peter -- cu Peter l Jakobi lists(a)kefk.oa.shuttle.de

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Thiago Avelino has invited you to Dropbox
by Dropbox 15 Oct '09

15 Oct '09

We're excited to let you know that Thiago Avelino has invited you to Dropbox! Thiago Avelino has been using Dropbox to sync and share files online and across computers, and thought you might want it too. Visit http://www.getdropbox.com/link/20.jFRbfH0d7t/NjM3MTY5MDM3 to get started. - The Dropbox Team ____________________________________________________ To stop receiving invites from Dropbox, please go to http://www.getdropbox.com/bl/166e1def02f3/centos-devel%40centos.org

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CentOS 5.4 Status
by IT2 Stuart Blake Tener, USNR 15 Oct '09

15 Oct '09

Mr. Herrold, Please understand that it is with no pleasure accorded to me that I must go and correct the some several assertions you have proffered within your commentary, as they are most certainly anomalous in nature. I think you might be well served to realize that most people have the expectation that no matter how slowly a project might progress, the status does change from time to time. And in the absence of a weekly or monthly status report on its progression, it is quite reasonable to proffer a request for pronouncement of the project's status. My queries were not specific to the S/390 apportionment of the 5.4 distribution from CentOS, but part of a greater overarching query regarding 5.4 more generally. Indeed, showing interest in the direction a particular distribution is heading, is actually contributing. It might not be writing code, but having the discussion about the needs of the community and the sorts of platforms that said community members might otherwise search for support on, is a contribution of intellectual value in terms distinctly not uncertain. Moreover, your presumption regarding my standing to represent the US Navy specifically concerning any interest in a S/390 distribution is entirely erroneous, but I appreciate you think highly enough of me that the Navy would leave that to me. However, I am sorry that you were so easily confused by the fact that my being a sailor in the Navy meant that I might be representing the Navy needing this distribution, as I do not represent the interests of the Navy regarding my comments. In fact, notwithstanding the fact that I never said the Navy had any desire for a S/390 variant of CentOS, what maybe far more likely is that I have a P/390 and am interested to see it come to fruition for the purposes of my personal mainframe hardware. Lastly, it instructive that many years ago I spent hours on the phones with folks from RedHat, back when they sold more books than Linux CDs, trying report bugs and explain where I thought the code could be improved. However, just to show you my heart is in the right place, once a 5.x variant is at least in beta for the S/390 platform (from CentOS), I shall certainly be happy to contribute by beta testing it and turning in bug reports. I await the project's advancement to said milestone, such that I can begin contributing sir. Now personally, I have my doubts as to a FOSS Fairy, but, just in case, I placed a CD with CentOS 3.9 for S/390 under my pillow! :) I appreciate your taking the time to review my reply comments, and look forward to discussing the needs of the greater CentOS community in more detail with you as the project moves forward. Have a wonderful and blessed day sir. Very Respectfully Submitted, Stuart B. Tener === 'IT2 Stuart Blake Tener, USNR': You have asked this how many times without contributing to advancing such an effort, now? If the Navy wants it, step and fund a run at it. If you do, put your shoulder to the wheel. I described my effort on an IBM provided build instance the last time this question was asked [with published build sources, and result packages], and the time before that as well, and I am sure it is in the archives Stuff is not just magically delivered by the FOSS fairy -- Russ herrold -- Very Respectfully, IT2 Stuart Blake Tener, USNR Las Vegas, NV / Beverly Hills, CA / Philadelphia, PA / Washington, DC Amateur Radio Call Sign: N3GWG (Extra) / Marine Radio Operator Permit (MROP) email: teners(a)bh90210.net (also carbon copies to my Blackberry) phone: +(1) 310.358.0202 (Beverly Hills, CA, forwards to mobile phone) phone: +(1) 215.338.6005 (Philadelphia, PA, voice mail only) E-Fax: +(1) 928.437.4505 (Telecopier, fax to email gateway) Military emails (checked monthly until remote NMCI access is secured) NIPRNET: stuart.tener(a)navy.mil NIPRNET: stuart.b.tener(a)us.army.mil NRO: teners(a)nro.mil TS/SCI: tenerstu(a)nro.ic.gov (GWAN) Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information, though strictly at the UNCLASSIFIED level. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the originate message.

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QA Test Matrix submission: Rescue Mode
by Garry.Dale 15 Oct '09

15 Oct '09

Greetings: After looking over some of the QAWiki pages, I have attempted to create a test case for Rescue Mode [1]. Perhaps this could be included in the test matrix? Thanks. gd [1] http://wiki.centos.org/GarryDale

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Re: [CentOS-devel] CentOS 5.4 Status
by IT2 Stuart Blake Tener, USNR 15 Oct '09

15 Oct '09

Mr. Singh, Well, if I were going to add details as to what I could do to help the build effort, how would I do that intelligently when no one is willing to give a status as to where the build effort is in terms of the project milestones or what resources are currently under demand by the project? I am going to tell you straight away, having read Russ' comments, I am in no way interested to work with him, and it appears he must be one of the development team leaders. During my work day I get paid to deal with unhappy people all day long, I am loath to volunteer to do it for free in my spare time after hours. If you and the development team want to attract more assistance from people, take note that pissing people off when they ask the status of a project is not the manner by which to ascend along that path. In the mean time, I shall await Russ' apology in precedence to making a decision as to what resources (monetary, computer related, or personal time) I have available in pursuance of furthering the effort at hand. If in fact Russ is not really one of the project leaders, and is just a "rouge member", do let me know that too. One last note, I might be the sort of person to go and say these things point blank, as I am a more direct person, but I imagine that there are people perhaps on this list who read Russ' comments and are thinking to themselves, "WOW...pffft...I am just going to stick to reading this list, who would want to work with this guy?...." Have a most wonderful and blessed day. V/R, Stuart Message: 7 Date: Wed, 14 Oct 2009 11:43:14 +0100 From: Karanbir Singh <mail-lists(a)karan.org> Subject: Re: [CentOS-devel] CentOS 5.4 Status To: "The CentOS developers mailing list." <centos-devel(a)centos.org> Message-ID: <4AD5AB42.7080608(a)karan.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 10/14/2009 07:10 AM, IT2 Stuart Blake Tener, USNR wrote: > Thank you for your reply, it was the sort of response I was curious to > hear. Just want to point out that I dont entirely disagree with Russ's post, its usually a 'nice' thing to also add details on what you might be able to offer to the build effort :) - KB ------------------------------ -- Very Respectfully, IT2 Stuart Blake Tener, USNR Las Vegas, NV / Beverly Hills, CA / Philadelphia, PA / Washington, DC Amateur Radio Call Sign: N3GWG (Extra) / Marine Radio Operator Permit (MROP) email: teners(a)bh90210.net (also carbon copies to my Blackberry) phone: +(1) 310.358.0202 (Beverly Hills, CA, forwards to mobile phone) phone: +(1) 215.338.6005 (Philadelphia, PA, voice mail only) E-Fax: +(1) 928.437.4505 (Telecopier, fax to email gateway) Military emails (checked monthly until remote NMCI access is secured) NIPRNET: stuart.tener(a)navy.mil NIPRNET: stuart.b.tener(a)us.army.mil NRO: teners(a)nro.mil TS/SCI: tenerstu(a)nro.ic.gov (GWAN) Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information, though strictly at the UNCLASSIFIED level. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the originate message.

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CentOS 5.4 Status
by IT2 Stuart Blake Tener, USNR 14 Oct '09

14 Oct '09

Mr. Singh, Thank you for your reply, it was the sort of response I was curious to hear. Have a wonderful and blessed day. -- Very Respectfully, IT2 Stuart Blake Tener, USNR Las Vegas, NV / Beverly Hills, CA / Philadelphia, PA / Washington, DC Amateur Radio Call Sign: N3GWG (Extra) / Marine Radio Operator Permit (MROP) email: teners(a)bh90210.net (also carbon copies to my Blackberry) phone: +(1) 310.358.0202 (Beverly Hills, CA, forwards to mobile phone) phone: +(1) 215.338.6005 (Philadelphia, PA, voice mail only) E-Fax: +(1) 928.437.4505 (Telecopier, fax to email gateway) Military emails (checked monthly until remote NMCI access is secured) NIPRNET: stuart.tener(a)navy.mil NIPRNET: stuart.b.tener(a)us.army.mil NRO: teners(a)nro.mil TS/SCI: tenerstu(a)nro.ic.gov (GWAN) Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information, though strictly at the UNCLASSIFIED level. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the originate message.

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