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heartbeat segfaulting on CentOS 5 x86_64 (xen guest)
by Amos Shapira 29 Nov '07

29 Nov '07

Hello, I'm having trouble running two linux-ha heartbeat nodes and have them talk to each other (or actually one of the nodes just doesn't work even for local basic admin stuff, including a simple "service heartbeat stop") and apparently it all boils down to the following Bug in Linux-HA: http://developerbugs.linux-foundation.org//show_bug.cgi?id=1678 I'm persuing this with the linux-ha users mailing list but the bug doesn't seem to get much attention from the linux-ha developers and I was wondering whether anyone here has stumbled on it and have a work around. The strange thing is that the two noes are identical - both are CentOS 5 PV Xen guests on the same CentOS 5 Dom0 host and exactly the same packages and config files - but one of them seems to work perfectly while the other doesn't. Anyone? Thanks, --Amos

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RE: [CentOS] Centos 5.1 distro: How to upgrade 5.0 to 5.1 with yum??
by Plant, Dean 29 Nov '07

29 Nov '07

Robinson Tiemuqinke wrote: > --- Jancio Wodnik <jancio_wodnik(a)wp.pl> wrote: > >> Robinson Tiemuqinke pisze: >>> >>> Currently I download the Centos 5.0 upgrade packages from mirror >>> sites on Internet (.../centos/5/updates/{SRPMS,i386,x86_64}/...), >>> with the arrival of Centos 5.1, are the existing Centos 5.0 >>> update packages will be removed in honor of Centos 5.1 >>> updates? or it will stay? And how about the Centos >>> 5.1's default packages in distro? >>> >>> Give an example here: >>> >>> 2.6.18-8.1.15 version kernel is the most recently >>> updated kernel for Centos 5.0 distro, if the Centos >>> 5.1 distro comes with 2.6.18-8.1.10000 kernel and in >>> the first few weeks there are no kernel updates for >>> 5.1, then how can I upgrade my kernel to >>> 2.6.18-8.1.10000 naturally -- will the >>> 2.6.18-8.1.10000 shows in the same update sources >>> >> > directories(.../centos/5/updates/{SRPMS,i386,x86_64/...)? >>> >>> A similar question is: are the update diretories >>> contains only updates for 5.1 distro, or both 5.0 and >>> 5.1? >>> >>> Any clarifications are greatly appreciated. >>> >> It's simply. All things from 5.0 to 5.1 will be done automatically >> via yum (as standard update) or in rare situation can be possibly >> depedency problem (when mixing different repo ?). >> >> So don't worry. if you are really affraid - update >> only one box and test >> ... test ... then update the rest. >> >> I must say. In Centos 4 world all updates from 1 to 2 to 3 ... to 5 >> were go in smooth way. >> >> Regards, >> >> Irens >> > > I have had my local 5.0 update repository > (.../centos/5.0/updates/{SRPMS,i386,x86_64}/...) setup > and used it for my 900+ boxes's daily upgrade already. > The repository is synchronized with official Internet > mirrors daily to keep it current. > > My major concerns is: After the 5.1 is released, the > update channel/directory > (.../centos/5.1/updates/{SRPMS,i386,x86_64}/...) may > change to contain only updates for 5.1 > snapshot/release, not updates since 5.0. If so, then > all my Centos 5.0 boxes will suffer. > > I have the serious concern because most Centos Mirror > sites on Internet ONLY keep the updates for latest > release/snapshot, not holds updates since the > base(3.0, 4.0, 5.0 etc) release. This seems like a big > problem if we would like to install from base|initial > release (3.0, 4.0, 5.0) continuously and then use a > single up-to-date update/ repository to upgrade > machines to current level. > > For example, at Stanford's Centos 4 mirror site, only > 4.5 is mirrored while all the other > 4.0/4.1/4.2/4.3/4.4 are not. and in the updates/ > directory only updates for 4.5 are kept there. If the > same is true for all other sites honoring 5.0 series, > then I think I will definitely get screwed If I tried > to keep on using base 5.0 and daily synced updates/ > (exactly the same) for upgrade. > > Any mirror sites hold updates since base release? Or I > have to keep on adding more repositories to yum's > configuration? 5.0 distro, 5.0 updates, 5.1 distro, > 5.1 updates, 5.2 distro, 5.2 updates. etc. If so, then > it is too low-performanced and erro-prone. > > Any one have experience on upgrade Centos 4 releases > from 4.0 to 4.5 can shed a light on this? > > Thanks a lot. > > --Robinson > > If you remove the point release numbers from your update paths you do not need the old versions. If you really need the old updates use http://vault.centos.org/ >From http://mirror.centos.org/centos-4/4.4/readme ------------------------------------------------------------------------ This directory (and version of CentOS) is depreciated. For normal users, you should use /4/ and not /4.4/ in your path. Please see this FAQ concerning the CentOS release scheme: http://www.centos.org/modules/smartfaq/faq.php?faqid=34 If you know what you are doing, and absolutely want to remain at the 4.4 level, go to http://vault.centos.org/ for packages. ------------------------------------------------------------------------ To simplfy our yum configuration I disable all the repo files in /etc/yum.repos.d and call the yum configuration from a local web server in yum.conf by using the include statement. One change on the web server changes the yum configuration on all CentOS machines. In the yum.conf I add # Site yum files include=http://ourserver.ourdomain.com/centos/yum/centos.repo include=http://ourserver.ourdomain.com/centos/yum/centos-updates.repo The centos.repo looks like this, [base] name=CentOS-$releasever - Base baseurl=http://ourserver.ourdomain.com/centos/$releasever/os/$basearch/ enabled=1 gpgcheck=1 And the centos-updates.repo looks like this, [updates-released] name=CentOS-$releasever - Updates baseurl=http://ourserver.ourdomain.com/centos/$releasever/updates/$basea rch/ enabled=1 gpgcheck=1 [custom-repo] name=CentOS-$releasever - Custom-rpms baseurl=http://ourserver.ourdomain.com/centos/$releasever/customrepo/ enabled=1 gpgcheck=1 Hope this helps. Dean

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OT: virtual server hosting recomendation
by David Hrbáč 29 Nov '07

29 Nov '07

Hi, we are in need of a new (virtual) server based in US. Any hosting recommendation? Thanks, David Hrbáč

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2 DHCP server in one subnet
by Fajar Priyanto 29 Nov '07

29 Nov '07

Hello all, In the network there is already a W2K server serving as DHCP server for the network. Then we want to implement LTSP, so we need to setup another DHCP server, right? Due to unexpected reason (little by little migration of w98 clients to LTSP), we need to keep the W2K server running in that network. Can we then have 2 DHCP server in the same subnet, only serving pre-determine clients using mac address? Any clue on how to setup the dhcpd.conf? Thank you very much. -- Fajar Priyanto | Reg'd Linux User #327841 | Linux tutorial http://linux2.arinet.org 20:16:32 up 14 min, 2.6.22-14-generic GNU/Linux Let's use OpenOffice. http://www.openoffice.org The real challenge of teaching is getting your students motivated to learn.

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Severe VMware slowdown
by Mark Hull-Richter 29 Nov '07

29 Nov '07

In the last few days, I have noticed a drastic slowdown in my VMware Windows guest OS.. I recently bit the bullet and upgraded it from XP SP1 to SP2, and that seemed to work fine for quite a few days. The two major changes I made to the system recently were: 1) The most recent update from CentOS (can't remember which one, but it was within the last two weekd for 5.0). 2) Adding another VM guest OS, this one a CentOS 5.0 guest. What happens is, usually when I click the mouse in the Windows window, the system hangs up completely for some period of time that usually exceeds four minutes. Thereafter, once the VM is "running," it will occasionally just stop when I am transitioning into the VM from elsewhere. I verified this using the CentOS system clock - last night it stopped at 23:01 and still read 23:01 when my cell phone, which is usually dead on in sync with the system clock, read 11:04pm. I cut back on the amount of memory allowed to the Windows VM (768MB, down from 1GB) and that seemed to help a little, but I have 2GB and I'm thinking that this should not be a problem. Any input would be helpful. Thanks. mhr P.S.: Now I'm thinking that my earlier remark about applications was a bit overstated....

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How to import/install the key for signing pxljr-1.1-1.i386.rpm
by Andrew Allen 28 Nov '07

28 Nov '07

How do I import and install the key for signing the above rpm (driver for HP Colour laserjet 3500 printer) which I've downloaded from the kde repo? - I want to use yum localinstall, but when I do I get the message 'package not signed'. Thanks for help, Andy

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Dell T3400 on CentOS 3.X
by Mark Belanger 28 Nov '07

28 Nov '07

For reasons I'd rather not go into, I need to get CentOS 3.anything on a Dell T3400: http://www.dell.com/content/products/productdetails.aspx/precn_t3400?c=us&l… The hard drive is not seen at install time. Can someone point me in the right direction to see if this is possible and how to proceed? Regards, -mark

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Installing HP Color Laserjet 3500 printer in CentOS 5
by Andrew Allen 28 Nov '07

28 Nov '07

OK, I've downloaded and installed the driver (pxljr-1.1-1.i386.rpm), and the ppd file (HP-Color_LaserJet_3550-pxljr.ppd) in /etc/cups/ppd. Now I'm trying to set up the printer, connected to the network via a JetDirect printer server at location 192.168.0.200. Trouble is, I'm really not sure about all the settings in Printer Configuration - specifically, what should the Device URI be - at the moment, it says socket://HPColourLaserjet3500:9100, but I'm not sure if this is correct, but it doesn't seem to be because it won't print a test page. Any help much appreciated, Thanks, Andy

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Adobe products under Linux?
by Scott Ehrlich 28 Nov '07

28 Nov '07

Also sent to Codeweavers - [what is this list's insights?] I have a 32 GB, dual quad-core desktop machine and was considering 32-bit Windows XP w/SP2, but discovered it only supports up to 4 GB RAM, so that idea is shot. Next in line is 64-bit CentOS 5. The major need for Windows would be very active use of Adobe Acrobat 8, Photoshop CS3, and Illustrator CS3. There may also be the need to copy/transfer information among Matlab, Mathematica, and Microsoft-based applications, from Office 2003 to the above-mentioned ones. Do you support these, and how complete is your product line for 64-bit CentOS 5? Based on your answer, I'll know whether to go with a virtual machine-based solution, which means a Windows VM, or can remain Linux-only, with your solution. Thank you very much. Scott

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libgd question on CentOS (in order to get PerfParse working with Nagios)
by Rogelio 28 Nov '07

28 Nov '07

Do I have the necessary gd packages installed on my CentOS 4 box? rpm -qa | grep gd gdk-pixbuf-0.22.0-17.el4.3 gdk-pixbuf-devel-0.22.0-17.el4.3 gdbm-1.8.0-24 gdbm-devel-1.8.0-24 gd-devel-2.0.28-5.4E gd-2.0.28-5.4E gdm-2.6.0.5-7.rhel4.15 sysklogd-1.4.1-26_EL I'm trying to install PerfParser (./compile->make && make install), but I'm getting a "gImageString error", which according to this FAQ (http://perfparse.de/tiki-view_faq.php?faqId=1) means: "The gd library is probably not installed yet on your system. Or you are missing the development package such as libgd-devel or libgd-dev." I "yum search" 'd for libdg and found the following. Is this what I install? libgdiplus.i386 1.0.5-1.2.el4.rf rpmforge Matched from: libgdiplus libgdiplus is an Open Source implementation of the GDI+ API, it is part of the Mono Project libgdiplus-devel.i386 1.0.5-1.2.el4.rf rpmforge Matched from: libgdiplus-devel Header files, libraries and development documentation for libgdiplus This package contains the header files, static libraries and development documentation for libgdiplus. If you like to develop programs using libgdiplus, you will need to install libgdiplus-devel.

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