Discuss December 2011

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207 participants
174 discussions

CentOS 6, yum-updatesd
by m.roth＠5-cent.us 15 Dec '11

15 Dec '11

Back in the Fedora docs I found on a google, it mentions that in FC6, the preferred tool for updates was the "new" yum-updatesd. Anyone know: a) what theological reason upstream had to drop it altogether, and b) what's the recommended replacement - is it yum-cron? I hand-update some servers, and of course users' workstations, but some system, like home directory servers and backup servers are extremely unlikely to break with an autoupdate, so this is of immediate interest. mark

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CR repo - version issue
by Philip Manuel 14 Dec '11

14 Dec '11

Hi We use mrepo to keep a local repository. I downloaded the CentOS6.1 iso and used that as the base. We also have the CR repo added. I was expecting this change to cause no issues but the following packages have version issues between the base 6.1 and the CR repo:- base version CR version dbus-libs-1.2.24-4.el6_0.x86_64 dbus-libs-1.2.24-5.el6_1.x86_64 libpng-1.2.44-1.el6.x86_64 libpng-1.2.46-1.el6_1.x86_64 cups-libs-1.4.2-39.el6.x86_64 cups-libs-1.4.2-39.el6_1.1.x86_64 zlib-1.2.3-25.el6.x86_64 zlib-1.2.3-26.el6.x86_64 krb5-libs-1.9-9.el6.x86_64 krb5-libs-1.9-9.el6_1.2.x86_64 perl-5.10.1-119.el6.x86_64 perl-5.10.1-119.el6_1.1.x86_64 perl-libs-5.10.1-119.el6.x86_64 perl-libs-5.10.1-119.el6_1.1.x86_64 There maybe a few other packages but this causes an issue with yum as it doesn't handle the el6_ suffix differences. Is this the intended behaviour ? Thanks

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max user processes - is /etc/security/limits.conf the best place to change?
by Alexander Farber 14 Dec '11

14 Dec '11

Hello centos-users, in CentOS 6.1 is /etc/security/limits.conf the best place to change the number of max user processes for a daemon process? (I'm asking because the ".../security/..." part of the path sounds a bit strange) Thank you Alex

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Shutdown KVM guest not working
by James B. Byrne 14 Dec '11

14 Dec '11

I am in the middle of a rather confusing situation. At the moment I am unable to shutdown a KVM guest machine. Nor am I presently able to open a virt-manager session on the host. I am not exactly sure what has happened but the problem with the vm guest is that issuing a "virsh shutdown 1" from the root console has no effect. # virsh list Id Name State -------------------------------------------- 1 vmguest01.... running # virsh shutdown 1 Doamin 1 is being shutdown wait 5 minutes # virsh list Id Name State -------------------------------------------- 1 vmguest01.... running How do I get this stopped? I have another problem with virt-manager as well. But I will leave that for another message. -- *** 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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CentOS-announce Digest, Vol 82, Issue 9
by centos-announce-request＠centos.org 14 Dec '11

14 Dec '11

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-2011:1815 Moderate CentOS 5 x86_64 icu Update (Johnny Hughes) 2. CESA-2011:1815 Moderate CentOS 5 i386 icu Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Wed, 14 Dec 2011 00:14:20 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2011:1815 Moderate CentOS 5 x86_64 icu Update To: centos-announce(a)centos.org Message-ID: <20111214001420.GA26906(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2011:1815 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2011-1815.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: ff8072bc90d53597468560bbb41dbae288239fbc060f26c3cf4cbb7082f25f86 icu-3.6-5.16.1.x86_64.rpm 57781db5aec39afa972767c509f70f04afa0a2ea494b9de0aafa7ea14c12eeff libicu-3.6-5.16.1.i386.rpm e7d547534074e9778fec100ba38750fd685072a6eee3d5105b8befa05aa57e25 libicu-3.6-5.16.1.x86_64.rpm bebde578a020d6a9c629dd6e03fabf0c4837f94b8485dc7b5d55ba2430d3d92d libicu-devel-3.6-5.16.1.i386.rpm f6db0f10c64902d4027e29337b99117ecedf9c7c74808c421eb5d931846e5b97 libicu-devel-3.6-5.16.1.x86_64.rpm a32f875843b044ee724e688ae89fadb26bea7aecd6fc11a9ace2d42bc03a238c libicu-doc-3.6-5.16.1.x86_64.rpm Source: a42b1ee152c2a66f70e2853a6d6093cc067d4931ae2d56debe4b4d87f6cfcae7 icu-3.6-5.16.1.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Wed, 14 Dec 2011 00:14:20 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2011:1815 Moderate CentOS 5 i386 icu Update To: centos-announce(a)centos.org Message-ID: <20111214001420.GA26890(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2011:1815 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2011-1815.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: fffc15be14232d26eb697c2dbe39946821a431943959f719b30788ae16c9a2c8 icu-3.6-5.16.1.i386.rpm 57781db5aec39afa972767c509f70f04afa0a2ea494b9de0aafa7ea14c12eeff libicu-3.6-5.16.1.i386.rpm bebde578a020d6a9c629dd6e03fabf0c4837f94b8485dc7b5d55ba2430d3d92d libicu-devel-3.6-5.16.1.i386.rpm dec7eaa9d6dcf2bd776d4d9a8b90269fb7b6301a30dbfcf8d7706b36ef0b8b14 libicu-doc-3.6-5.16.1.i386.rpm Source: a42b1ee152c2a66f70e2853a6d6093cc067d4931ae2d56debe4b4d87f6cfcae7 icu-3.6-5.16.1.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 82, Issue 9 **********************************************

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dd disk will not boot - can't find /dev/root
by Joseph Spenner 14 Dec '11

14 Dec '11

OS= CentOS 5.4, 64bit. I've always had great luck using dd to copy entire disks, and booting on other systems. However, I'm having difficulty with a couple systems. I boot using an install DVD so the OS disk is quiet, and dd to my target disk: # dd if=/dev/sda of=/dev/sdb bs=1024k /dev/sdb is the blank disk. The disks are 2T. After a few hours the operation is complete. But when I try to boot the new disk on my other system, I get the following errors after the CentOS boot menu (it counts down to boot the default disk fine, then this error): (screen shot at http://img214.imageshack.us/img214/645/centosbooterror.jpg ) I've read posts regarding the /dev/root error, and they talk about rebuilding initrd. I've tried some of the fixes mentioned, but have had no success. All I can think of is slightly different hardware on the new system where I'm trying to boot, but I'm not sure what the difference could be. They're both 64bit SuperMicro systems. If anyone has any ideas, I'd love to hear. Thanks!

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Minimal Desktop in CentOS6 with kvm
by David McGuffey 14 Dec '11

14 Dec '11

Trying to build a more secure version of a desktop with virtualization enabled. Goal is to perform most Internet surfing and on-line banking from a special-built and hardened Linux load. Have built a bunch of complete "Desktop" versions of CentOS 5.5, 5.6, and 6.0 with this capability. This is the first time I've tried to go smaller. And smaller it is...by about 900 packages. Built a CentOS 6 "Minimum Desktop" today. During the install I added virtualization. Virtualization works, but the guest OS can't communicate via the virtio interface. Anyone able to do this? Any tips on what might be missing in the load? Dave

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Re: [CentOS] [CentOS-announce] Using sha256sum instead of md5sum for package checksums
by Yves Bellefeuille 14 Dec '11

14 Dec '11

On Monday 12 December 2011, Johnny Hughes <johnny(a)centos.org> wrote: > There are known Collision Attacks for the MD5SUM method of hashing, > so it is possible to modify a file and make it have the same MD5SUM > as another file. See this link for details on Collision Attacks: > > http://en.wikipedia.org/wiki/Collision_attack > > Recommendation from the US-CERT concerning MD5SUM hashes: > > http://www.kb.cert.org/vuls/id/836068 > > Based on the above information, the CentOS team will be using > sha256sum (sha-2) and not md5sum to generate future hashes for > posting on our e-mail announcements to the CentOS Announce Mailing > List. MD5 is certainly broken, but would it be sufficient to go to sha1sum? According to my quick testing, sha256sum takes twice as long as sha1sum. -- Yves Bellefeuille <yan(a)storm.ca> "La Esperanta Civito ne rifuzas anticipe la kunlaboron de erarintoj, se ili konscias pri sia eraro." -- Heroldo Komunikas, n-ro 473.

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Re: [CentOS] dependency error with xerces.c ???
by Johnny Hughes 14 Dec '11

14 Dec '11

On 12/13/2011 06:58 PM, Dave Stevens wrote: > Quoting Johnny Hughes <johnny(a)centos.org>: > >> Content-Type: text/plain; charset=ISO-8859-1 >> Content-Transfer-Encoding: quoted-printable >> >> On 12/13/2011 02:36 PM, ken wrote: >>> On 12/13/2011 02:30 PM Lucian wrote: >>>> On 13 December 2011 19:17, ken <gebser(a)mousecar.com> wrote: >>>>> # yum update >>>>> ... >>>>> --> Running transaction check >>>>> --> Processing Dependency: libxerces-c.so.27 for package: phc >>>>> ---> Package xerces-c.i386 0:2.8.0-1.el5.centos set to be updated >>>>> --> Finished Dependency Resolution >>>>> phc-0.1.7-1.el5.rf.i386 from installed has depsolving problems >>>>> --> Missing Dependency: libxerces-c.so.27 is needed by package >>>>> phc-0.1.7-1.el5.rf.i386 (installed) >>>>> Error: Missing Dependency: libxerces-c.so.27 is needed by package >>>>> phc-0.1.7-1.el5.rf.i386 (installed) >>>>> You could try using --skip-broken to work around the problem >>>>> You could try running: package-cleanup --problems >>>>> package-cleanup --dupes >>>>> rpm -Va --nofiles --nodigest >>>>> # locate libxerces >>>>> /usr/lib/libxerces-c.so.27 >>>>> /usr/lib/libxerces-c.so.27.0 >>>>> /usr/lib/libxerces-depdom.so.27 >>>>> /usr/lib/libxerces-depdom.so.27.0 >>>>> # rpm -qa|grep xerces >>>>> xerces-c-2.7.0-8.el5 >>>>> xerces-j2-2.7.1-7jpp.2.el5_4.2 >>>>> >>>>> >>>>> How to resolve this? >>>> >>>> You should ask this on repoforge/rpmforge mailing lists.. >>> >>> Thanks, Lucien. This package is from the extras repo. Does that make a >>> difference? >>> >>> Also, I understand what you're saying. But (and this is not to you in >>> particular, rather to "the system") rather than having to join yet >>> another mailing list just to report a problem... and then send an email >>> to everyone on that list, why couldn't the package give an email address >>> like bugs@[whatever_repo] to send a report to. >> >> The package you are having a problem with has a .rf in the name ... that >> means it is a package from the repoforge repo. >> >> You might make sure the rpms are installed properly so that the rpm >> database knows it exists (and it is not orphaned at the location). What >> does this return: >> >> rpm -q --whatprovides /usr/lib/libxerces-c.so.27 >> >> also, download the file xerces-c-2.8.0-1.el5.centos.i386.rpm what does >> this say: >> >> rpm -qpl xerces-c-2.8.0-1.el5.centos.i386.rpm >> >> It would seem that xerces-c-2.8.0-1.el5.centos.i386.rpm is going to >> upgrade the library to /usr/lib/libxerces-c.so.28 to me. >> >> This is going to cause an issue with that repoforge package. You can >> use exclude= for the extras repo, ask repoforge to rebuild the package >> against the new version, or probably force install the rpm and symlink >> /usr/lib/libxerces-c.so.28 to /usr/lib/libxerces-c.so.27 and see if it >> works. >> >> > I'm getting this too, without the .rf > > like this: > > # yum update xerces-c > Loaded plugins: fastestmirror, priorities > Loading mirror speeds from cached hostfile > * base: mirror.nic.uoregon.edu > * epel: www.muug.mb.ca > * extras: www.muug.mb.ca > * updates: centosq2.centos.org > Setting up Update Process > Resolving Dependencies > --> Running transaction check > --> Processing Dependency: libxerces-c.so.27 for package: gdal > ---> Package xerces-c.i386 0:2.8.0-1.el5.centos set to be updated > --> Finished Dependency Resolution > gdal-1.4.2-4.el5.i386 from installed has depsolving problems > --> Missing Dependency: libxerces-c.so.27 is needed by package > gdal-1.4.2-4.el5.i386 (installed) > Error: Missing Dependency: libxerces-c.so.27 is needed by package > gdal-1.4.2-4.el5.i386 (installed) > You could try using --skip-broken to work around the problem > You could try running: package-cleanup --problems > package-cleanup --dupes > rpm -Va --nofiles --nodigest > and > > # rpm -q --whatprovides /usr/lib/libxerces-c.so.27 > xerces-c-2.7.0-8.el5 OK ... let me look at fixing it now :D

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dependency error with xerces.c ???
by ken 14 Dec '11

14 Dec '11

# yum update ... --> Running transaction check --> Processing Dependency: libxerces-c.so.27 for package: phc ---> Package xerces-c.i386 0:2.8.0-1.el5.centos set to be updated --> Finished Dependency Resolution phc-0.1.7-1.el5.rf.i386 from installed has depsolving problems --> Missing Dependency: libxerces-c.so.27 is needed by package phc-0.1.7-1.el5.rf.i386 (installed) Error: Missing Dependency: libxerces-c.so.27 is needed by package phc-0.1.7-1.el5.rf.i386 (installed) You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest # locate libxerces /usr/lib/libxerces-c.so.27 /usr/lib/libxerces-c.so.27.0 /usr/lib/libxerces-depdom.so.27 /usr/lib/libxerces-depdom.so.27.0 # rpm -qa|grep xerces xerces-c-2.7.0-8.el5 xerces-j2-2.7.1-7jpp.2.el5_4.2 How to resolve this? tnx

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Discuss December 2011