Discuss November 2007

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256 participants
327 discussions

Deleting files from dump?
by Scott Ehrlich 29 Nov '07

29 Nov '07

Is it possible to delete a file from dump? I saved it in one dump archive, and want to save space by deleting it from the others. Thanks. Scott

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lvresize --resizefs
by Ugo Bellavance 29 Nov '07

29 Nov '07

Hi, There is a difference between the help of lvresize and its man page. In the manpage, there is nothing about the -r or --resizefs function. Centos4. [root@serv01 ~]# lvresize Please specify either size or extents (not both) lvresize: Resize a logical volume lvresize [-A|--autobackup y|n] [--alloc AllocationPolicy] [-d|--debug] [-h|--help] [-i|--stripes Stripes [-I|--stripesize StripeSize]] {-l|--extents [+|-]LogicalExtentsNumber[%{VG|LV|FREE}] | -L|--size [+|-]LogicalVolumeSize[kKmMgGtTpPeE]} [-n|--nofsck] [-r|--resizefs] [-t|--test] [--type VolumeType] [-v|--verbose] [--version] LogicalVolume[Path] [ PhysicalVolumePath... ]

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Re: [CentOS] Announcing the CentOS on Laptops initiative
by David G. Miller 29 Nov '07

29 Nov '07

"Bart Schaefer" <barton.schaefer(a)gmail.com> wrote: > On Nov 28, 2007 7:23 AM, David G. Miller <dave(a)davenjudy.org> wrote: >> > Now everything (sort of) "just works (TM)". I say "sort >> > of" because I'm still running ndiswrapper since every time I've tried >> > the bcm43xx kernel module it hasn't worked with my WAP. >> > > I've had a similar experience with my HP. Did you manage to get > NetworkManager and ndiswrapper to co-operate? I had to disable > NetworkManager, but it'd be nice to use the profiles rather than > reconfigure the network when changing access points. I had it working for a while but it kept getting in the way when I was trying to get the bcm43xx module working. I went back to my old system of just having eth0 for the wired connection and eth1 for wireless and user controllable. Other than my home network, I don't have any other wireless networks that I connect to on a regular basis so this approach lets me manually control what happens when I'm trying to connect to some oddball network that I've never seen before and probably won't see again. One thing I remember about getting NetworkManager and the piece that handles keys (not gnome-keyring; don't remember the name right now and the laptop is off) was to tell that piece to use the generic wireless kernel API instead of the ndiswrapper control interface. Seems weird but it worked. If you need more information, I can fire up the laptop at some point. Cheers, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce

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reasons for using CentOS in business environments
by Rogelio 29 Nov '07

29 Nov '07

My apologies if this question has been previously answered, but could anyone here provide me with resources that I might use to help build a case for exclusively using CentOS in an enterprise environment? (Approximately 200 servers) Long story short, I've used a little of everything out there (Gentoo/Debian/*BSD/Slackware) and have a fairly good overall strategy of how they all work (all of them have lived on my laptop at one time or another over the last 10 years or so), but I'm now looking for solid business reasons that I can present to the CxO types of a company to show them that CentOS is probably where they'd like to look. Reasons thus far I've come up with include: --free *and* "fully" (at least, in my experience) compatible with RHEL --fairly stable (I don't have problems unless I start mixing repos) --yum packages (almost as cool as Debian! Ok, I'm biased...or maybe I don't know how to properly use yum?) Any other suggestions / tips I might add to my list would be greatly appreciated!

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cisco vpn client on linux
by Jerry Geis 29 Nov '07

29 Nov '07

Is there a cisco vpn client for linux centso 5 AMD 64 bit? Using google it talks about cisco vpn client but everyplace to download is blocked. I then found a vpnc reference but did not find a 64 bit version. yum install vpnc did nothing.... What is my next step? Jerry

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CentOS-announce Digest, Vol 33, Issue 14
by centos-announce-request＠centos.org 29 Nov '07

29 Nov '07

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-2007:1084 Critical CentOS 3 ia64 seamonkey - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Wed, 28 Nov 2007 21:08:58 +0200 From: Pasi Pirhonen <upi(a)centos.fi> Subject: [CentOS-announce] CESA-2007:1084 Critical CentOS 3 ia64 seamonkey - security update To: centos-announce(a)centos.org Message-ID: <20071128190858.GF18540(a)centos.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2007:1084 https://rhn.redhat.com/errata/RHSA-2007-1084.html The following updated files have been uploaded and are currently syncing to the mirrors: ia64: updates/ia64/RPMS/seamonkey-1.0.9-0.7.el3.centos3.ia64.rpm updates/ia64/RPMS/seamonkey-chat-1.0.9-0.7.el3.centos3.ia64.rpm updates/ia64/RPMS/seamonkey-devel-1.0.9-0.7.el3.centos3.ia64.rpm updates/ia64/RPMS/seamonkey-dom-inspector-1.0.9-0.7.el3.centos3.ia64.rpm updates/ia64/RPMS/seamonkey-js-debugger-1.0.9-0.7.el3.centos3.ia64.rpm updates/ia64/RPMS/seamonkey-mail-1.0.9-0.7.el3.centos3.ia64.rpm updates/ia64/RPMS/seamonkey-nspr-1.0.9-0.7.el3.centos3.ia64.rpm updates/ia64/RPMS/seamonkey-nspr-devel-1.0.9-0.7.el3.centos3.ia64.rpm updates/ia64/RPMS/seamonkey-nss-1.0.9-0.7.el3.centos3.ia64.rpm updates/ia64/RPMS/seamonkey-nss-devel-1.0.9-0.7.el3.centos3.ia64.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored

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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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Discuss November 2007