Discuss January 2011

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276 participants
289 discussions

Re: [CentOS] When are Logwatch errors really errors
by Lisandro Grullon 19 Jan '11

19 Jan '11

Hi jason, Thank you for pointing this out. I am running 5.5 in 5 new boxes suddenly the boxes would start randomly rebooting. Checking the logs point out to smartd in all the boxes. I should all of them out except one. In that one I disable and shutdown smartd and the machine has been running ok for 5 hours, could smartd causing init 6 calls, if so, why isn't syslogd catching those calls. All that pointed to smartd was the last call before reboot. You can see my post at https://www.centos.org/modules/newbb/viewtopic.php?topic_id=29777&start=0#f… For now I am leaving smartd off and will monitor if it keep rebooting, 5 hours have passed and things are still running. I will report back in the thread when the 24 hour mark ticks. I got the feeling that smartd is being evil to us. >>> Jason S-M 01/07/11 11:25 AM >>> Hi All, I don't know enough about when errors are *really* errors. So I google a lot to read and learn. I have a few things in my Logwatch that I want to make sure I understand 1. smartd **Unmatched Entries** Problem creating device name scan list Device /dev/sda: using '-d sat' for ATA disk behind SAT layer. Device /dev/sdb: using '-d sat' for ATA disk behind SAT layer. Device: /dev/sdc, NO MEDIUM present; skip device Device: /dev/sdd, NO MEDIUM present; skip device Device: /dev/sde, NO MEDIUM present; skip device Device: /dev/sdf, NO MEDIUM present; skip device I googled and since I know the devices I have I can comment out #DEVICESCAN -H -m root and replace with: /dev/sda -a -d sat -m root -M exec /usr/share/smartmontools/smartd-runner /dev/sdb -a -d sat -m root -M exec /usr/share/smartmontools/smartd-runner 2. kernel WARNING: Kernel Errors Present amd64_edac: probe of 0000:00:18.2 failed with error -22 ...: 1 Time(s) I googled this and I only had 5 hits that I could not make sense of. Can anyone shed some light? 3. automount **Unmatched Entries** lookup_read_master: lookup(nisplus): couldn't locate nis+ table auto.master: 1 Time(s) I googled and this seems to be a RHEL bug? Can anyone confirm and explain? -Jason _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Re: [CentOS] Troubles for an non-IT beginner
by Lisandro Grullon 19 Jan '11

19 Jan '11

As Rober puts it, sometimes is better to keep "Things...stable and reliable" rather than in the "bleeding edge..." makes perfect sense. >>> Robert Heller 01/19/11 10:43 AM >>> At Wed, 19 Jan 2011 15:13:41 +0000 (GMT) CentOS mailing list wrote: > > On Wed, 19 Jan 2011, Les Mikesell wrote: > > > CentOS would likely only be used as a desktop OS by people who also run > > servers and like everything to be the same. They all assemble approximately > > the same set of upstream packages, though, so it is possible to make them > > all do the same things with varying amounts of work in finding current > > packages that might be missing in the base distribution. > > I do think CentOS gets unreasonably knocked as a desktop OS. I definitely > don't use it on desktops *because* I run it on servers. > > All the advantages of long release cycles apply to desktops. Despite often > thinking otherwise, many users require relatively few packages to be the > latest shiniest, so running a bleeding edge distro isn't really needed. Even > then, a reasonably amount of software can end up being commercial, where EL5 > is currently better supported than any other linux release. Where users do > have requirements that diverge from the base OS, it's probably a good idea for > that to be satisfied out of the main OS tree anyway, as that lets you satisfy > local requirements while keeping the core identical across the board. +1 The local library was originally setup with Ubuntu, but the tech geek who set it up was NOT very good at maintaining things (applying updates, doing basic admin stuff). When I took over administrating things and set up the new incarnation of 'thin clients', I installed CentOS and with proper maintaince things run much more smoothly. The 'desktop' systems are used by patrons and library staff people alike (not techy geeks!). Things are stable and reliable. The fact that stuff is not bleeding edge is not something that really has much effect for most people. *I* use CentOS on *my* desktop AND on *my* laptop. > > jh > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 / heller(a)deepsoft.com Deepwoods Software -- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www.asciiribbon.org -- against proprietary attachments _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Troubles for an non-IT beginner
by Parshwa Murdia 19 Jan '11

19 Jan '11

hello, I am absolutely new, means from non-IT sector but have attraction (developed recently) towards linux and have chosen the centos distro for the installation as an OS in my home PC for personal use. I went to the page: http://isoredirect.centos.org/centos/5/isos/i386/ But don't understand amongst the variety of options there. I also don't know the technical terms like md5, etc...., can one directly give me the link for down loadable Cent OS 5.5 (which is latest) and better if it is the torrent download. I guess there would be only one file of .iso format which is to be burned and installed. If I am wrong, please let me know. -- Regards, Parshwa Murdia

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Printer Configuration Centos 5
by Im Corp - Xcelris 19 Jan '11

19 Jan '11

2 1

i386 packages on fresh x86_64 system
by Kai Schaetzl 18 Jan '11

18 Jan '11

Even a minimal install with nobase installs about 40-50 i386 packages on a 64bit-System. I know this has come up before and thought it might be an FAQ, but I can't find it on the wiki. Some questions are answered here: http://www.goitworld.com/rhelcentos-x86_64-and-i386-packages-mess/ but I have these remaining: - can I tell via kickstart to just install the 64bit packages? - is it safe to rpm -e remove all i386 packages? (assuming I'm not going to install any i386 packages later) Thanks. Kai -- Get your web at Conactive Internet Services: http://www.conactive.com

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replace x86 with x64 system and reuse existing LVM
by Kai Schaetzl 18 Jan '11

18 Jan '11

I want to replace an existing 32bit with a 64bit installation (Centos 5). There's an existing LVM with lots of partitions. Most are used for Xen guests. The system itself uses only one of them plus a separate /boot partition that is not on LVM. What's the best course of action here? Should I do the reinstall with kickstart or better manually and reuse the existing filesystem? As I understand once LVM gets loaded it should find the volumes by itself, but will it be able to use the same naming scheme for instance? Or do I have to do some additional stuff, anyway? Thanks, Kai

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SELinux : semodule_package, magic number does not match
by Philippe Naudin 18 Jan '11

18 Jan '11

Hello, I am trying to create a custom policy, but with no succes : $ cat <<EOF> foo.te module local 1.0; require { type httpd_sys_script_exec_t; type httpd_sys_script_t; class lnk_file read; } #============= httpd_sys_script_t ============== allow httpd_sys_script_t httpd_sys_script_exec_t:lnk_file read; EOF $ checkmodule -M -m -o foo.mod foo.te checkmodule: loading policy configuration from foo.te checkmodule: policy configuration loaded checkmodule: writing binary representation (version 6) to foo.mod $ semodule_package -o foo.pp -m foo.mod $ echo $? 0 # So far, so good. But : $ checkmodule -b foo.pp checkmodule: loading policy configuration from foo.pp libsepol.policydb_read: policydb magic number 0xf97cff8f does not match expected magic number 0xf97cff8c or 0xf97cff8d checkmodule: error(s) encountered while parsing configuration # And trying to "semodule -i foo.pp" fails completely. So here come my questions : - is there a boolean to allow httpd to execute a script "symlinked" ? (scontext=system_u:system_r:httpd_sys_script_t:s0 tcontext=system_u:object_r:httpd_sys_script_exec_t:s0 tclass=lnk_file) - can someone reproduce the error described above ? - any clue on how to fix it ? (For the curious one : I am fighting svn hooks on a filesystem mounted "-o noexec".) Additional infos : $ rpm -qa 'kernel*' '*selinux*' kernel-2.6.18-194.26.1.el5 kernel-2.6.18-194.32.1.el5 kernel-devel-2.6.18-194.26.1.el5 kernel-devel-2.6.18-194.32.1.el5 kernel-headers-2.6.18-194.32.1.el5 libselinux-1.33.4-5.5.el5 libselinux-devel-1.33.4-5.5.el5 libselinux-python-1.33.4-5.5.el5 libselinux-utils-1.33.4-5.5.el5 selinux-policy-2.4.6-279.el5_5.2 selinux-policy-devel-2.4.6-279.el5_5.2 selinux-policy-targeted-2.4.6-279.el5_5.2 $ uname -a Linux despina 2.6.18-194.26.1.el5 #1 SMP Tue Nov 9 12:54:20 EST 2010 x86_64 x86_64 x86_64 GNU/Linux Thanks, -- Philippe

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OT: Some examples about using auditd
by carlopmart 18 Jan '11

18 Jan '11

Hi all, I need to do some tests about auditd funcionalities on two CentOS5.5 hosts. I need to audit when user executes sudo command, when system files are modified, when some process call to some system calls, when kernel semaphores are modified, etc. I see some examples on /usr/shae/doc/audit-x.x.x, but I will know if someone has more complet audit.rules. Can somebody share some samples?? Thanks. -- CL Martinez carlopmart {at} gmail {d0t} com

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[OT] As service network suggestion
by Rajagopal Swaminathan 18 Jan '11

18 Jan '11

Greetings, I tried to throw this idea open in the ILUG-BOM group. some discussion took place. I was wondering if Centos can have such support network that can take care of all the "Centos support for money".discussions/decisions. Thanks for current and further indulgence. With warm regards and season's greetings, Rajagopal Mumbai, India PS: I understand Some central European and Scandinavian countries have some (Pagan or whatever) festival around 15th January hence season's greetings =============My original post below========== We see a lot of professionals and SMBs who are member of this list. I was wondering if we all can form a sort of service network of professional for various solutions using open/mixed source. Any person/organisation with skills/knowledge on FLOSS/Hweterogenous/Others can be a member. We cannot ignore the "other"/"Proprietery" completely as they are entrenched in the various verticals. Please bear with me. I have dedicated last five years of my bread and butter earning career to FLOSS solutions but have difficulty in gaining traction in the enterprises working alone. Of course there are commercials involved. Which can be discussed threadbare. Perhaps another list for that. I was having a "Single window Solutions" in mind wherein the members/prospective customers can pick and choose services they want. Modalities/details can be worked out. Soliciting opinions from the esteemed members of this list. Regards, Rajagopal

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Re: [CentOS] input/output error while copy (John R Pierce)
by Ritika Garg 18 Jan '11

18 Jan '11

The system that I am working on is desktop and I am mounting the external hdd on the system. I can't work over the network.

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Discuss January 2011