Discuss November 2008

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252 participants
254 discussions

Clean serial console setup when using an USB to serial converter
by David Knecht 19 Nov '08

19 Nov '08

Hello all, I'd like to connect to a CentOS 5.2 system's console through a null-modem cable. An USB to serial converter is connected to that system's USB port. When using this configuration statement in "/etc/inittab"... ... # Run gettys on serial line (that is, a serial line connected to USB0) usb0:12345:respawn:/sbin/agetty -L ttyUSB0 9600 vt100 ... ...I get these messages if (and only if) the converter is *not* connected to the system (thus, if no ttyUSB0 device has been dynamically created): Nov 18 15:58:41 anyvizor init: Id "usb0" respawning too fast: disabled for 5 minutes Nov 18 16:05:22 anyvizor init: Id "usb0" respawning too fast: disabled for 5 minutes Nov 18 16:12:03 anyvizor init: Id "usb0" respawning too fast: disabled for 5 minutes Apart from that, connectivity to the serially attached console works fine of the serial line is connected. Obviously, I would like to have a clean setup without any errors where this kind of console setup works like a charm. As a workaround (since I did not get any further on an inittab-based solution), I tried to configure udev to spawn "/sbin/agetty -L ttyUSB0 9600 vt100" once the converter gets connected. This is my udev configuration: [root@anyvizor rules.d]# pwd /etc/udev/rules.d [root@anyvizor rules.d]# cat 10-custom.rules BUS=="usb", KERNEL=="ttyUSB*" SYMLINK+="usb_attached_console" SUBSYSTEM=="usb_device", ACTION=="add", RUN+="/etc/udev/scripts/respawn_usb_attached_console.sh" [root@anyvizor rules.d]# [root@anyvizor scripts]# pwd /etc/udev/scripts [root@anyvizor scripts]# cat respawn_usb_attached_console.sh #!/bin/env sh getty_command_line="/sbin/agetty -L usb_attached_console 9600 vt100" while [[ -e /dev/usb_attached_console && $(/usr/bin/pgrep -xf "${getty_command_line}" | /usr/bin/wc --lines) -eq 0 ]] do eval "${getty_command_line}" done [root@anyvizor scripts]# Again, connectivity to the serially attached console works fine once the system is up and running. However, the system does not pass the Starting udev... message displayed on the console (here, I mean the normal console screen, not the serially attached console) if (and only if) the USB to serial converter is connected when booting. The boot process continues fine once the converter gets disconnected. Any hints for an inittab-based as well as an udev-based solution (or another concept to achieve the same result) is very welcome! Thanks, David

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Re: [CentOS-devel] CentOS for router product
by Karanbir Singh 19 Nov '08

19 Nov '08

Arut Selvan wrote: > I have been told by my boss to do a feasability study of using CentOS > for our routing product. > > I have some basic questions regarding CentOS. Please clarify. > > 1. Is the kernel used by CentOS pre-emptible/non-preemptible ? > > 2. Does CentOS allow for assigning of process priorities (e.g in VxWorks > task priorities can be set at creation time) > > 3. What is the clock resolution provided ? a) you have the wrong list, you want the centos(a)centos.org list ( which is where I am replying ) b) where did you look to find answers for these questions, what did you come up with ? All of these can be answered via a trivial look at the sources, if you intend to use CentOS, that might be a good idea anyway - KB

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Restricting dhcpd to an interface
by Robert Moskowitz 19 Nov '08

19 Nov '08

I want to run dhcpd on my notebook to support test systems connecting on a separate interfaces. I have looked at both the dhcpd and dhcpd.conf man pages and did not find an 'interface' option. I will have 3 interfaces on my notebook. One for the notebooks network access and two for test systems. I want to serve different subnets on each of those interfaces, and have not figured this out yet.

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amd mobile on 1 cpu listed in /proc/cpuinfo
by Jerry Geis 19 Nov '08

19 Nov '08

I just noticed that my Dual core mobile AMD ZM-82 is only showing one processor in /proc/cpuinfo and not two. Is there a reason? I am running centos 5.2 x86_64. uname -a Linux demobox.msgnet.com 2.6.18-92.el5 #1 SMP Tue Jun 10 18:51:06 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux Jerry -------------- more /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 17 model : 3 model name : AMD Turion(tm) X2 Ultra Dual-Core Mobile ZM-82 stepping : 1 cpu MHz : 600.000 cache size : 1024 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dn ow constant_tsc up pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy misalignsse 3dnowprefetch bogomips : 4393.73 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate [8]

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CentOS-announce Digest, Vol 45, Issue 12
by centos-announce-request＠centos.org 19 Nov '08

19 Nov '08

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HW issue during instalaltion
by Philip Manuel 19 Nov '08

19 Nov '08

Hi All, I have a shuttle SN78SH7 with a Seagate ST31500341AS (1.5Tb) drive. With windows Vista it sees the drive and can install to it. So far with GRML or CentOS5.2 they do not seem to be able to see this drive. Is there a particular setting I need or does CentOS not support installation to these drives yet ? Thanks for your help Phil

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Where do I find perl XML::Parser module
by Chris Geldenhuis 18 Nov '08

18 Nov '08

Hi, I am trying to install a package that requires the perl XML::Parser module. So far I have: Googled Installed rpmforge and yum priorities set priorities for all repositories used with rpmforge at 10 tried yum install perl-XML, yum install mod_perl-XML etc. and get response "Nothing to do" so what is the correct yum request to get this package installed. uname -a Linux xxx.co.za 2.6.18-92.1.18el5xen #1 SMP Wed Nov 12 09:48:10 EST 2008 x86_64 x86_64 x86_64 GNU/Linux TIA ChrisG

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is udev necessary?
by Rudi Ahlers 18 Nov '08

18 Nov '08

Hi all I recently setup a CentOS 5.2 server, running XEN (using HyperVM), and then moved the hard drive from my test box to my Intel server.The problem I now have, is that it doesn't bootup properly. Shortly after I see the udev service started, the machine reboots. This keeps on going the whole time. I have managed to kill udev on start-up (with CTRL + C), and then it boots up. So, do I need udev? And what is it's purpose? -- Kind Regards Rudi Ahlers

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OT - Automated rpm builds
by Tom Brown 18 Nov '08

18 Nov '08

Hi Currently devs check code into perforce and we have to checkout > package > update repo > deploy I know this could be scripted but are there any tools out there that can take code from a repository and build rpm's in a continuous integration type manner? I have been hunting around for such a tool and so far not seeing anything obvious as i dont want to reinvent the wheel if at all possible. thanks

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CentOS-announce Digest, Vol 45, Issue 11
by centos-announce-request＠centos.org 18 Nov '08

18 Nov '08

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-2008:0967 Moderate CentOS 4 i386 httpd security update (Karanbir Singh) 2. CESA-2008:0967 Moderate CentOS 4 x86_64 httpd security update (Karanbir Singh) 3. CESA-2008:0988 Important CentOS 5 i386 libxml2 Update (Karanbir Singh) 4. CESA-2008:0988 Important CentOS 5 x86_64 libxml2 Update (Karanbir Singh) 5. CESA-2008:0988 Important CentOS 3 i386 libxml2 - security update (Tru Huynh) 6. CESA-2008:0988 Important CentOS 3 x86_64 libxml2 - security update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Mon, 17 Nov 2008 23:45:07 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2008:0967 Moderate CentOS 4 i386 httpd security update To: centos-announce(a)centos.org Message-ID: <20081117234507.GA27648(a)vkalu.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2008:0967 Moderate https://rhn.redhat.com/errata/RHSA-2008-0967.html The following updated files have been uploaded and are currently syncing to the mirrors: i386: httpd-2.0.52-41.ent.2.centos4.i386.rpm httpd-devel-2.0.52-41.ent.2.centos4.i386.rpm httpd-manual-2.0.52-41.ent.2.centos4.i386.rpm httpd-suexec-2.0.52-41.ent.2.centos4.i386.rpm mod_ssl-2.0.52-41.ent.2.centos4.i386.rpm src: httpd-2.0.52-41.ent.2.centos4.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos @irc.freenode.net ------------------------------ Message: 2 Date: Mon, 17 Nov 2008 23:45:07 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2008:0967 Moderate CentOS 4 x86_64 httpd security update To: centos-announce(a)centos.org Message-ID: <20081117234507.GA27662(a)vkalu.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2008:0967 Moderate https://rhn.redhat.com/errata/RHSA-2008-0967.html The following updated files have been uploaded and are currently syncing to the mirrors: x86_64: httpd-2.0.52-41.ent.2.centos4.x86_64.rpm httpd-devel-2.0.52-41.ent.2.centos4.x86_64.rpm httpd-manual-2.0.52-41.ent.2.centos4.x86_64.rpm httpd-suexec-2.0.52-41.ent.2.centos4.x86_64.rpm mod_ssl-2.0.52-41.ent.2.centos4.x86_64.rpm src: httpd-2.0.52-41.ent.2.centos4.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos @irc.freenode.net ------------------------------ Message: 3 Date: Mon, 17 Nov 2008 23:54:51 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2008:0988 Important CentOS 5 i386 libxml2 Update To: centos-announce(a)centos.org Message-ID: <20081117235451.GA27751(a)vkalu.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2008:0988 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2008-0988.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: c9d9261d1e0b5ce5efe84b307b28d36f libxml2-2.6.26-2.1.2.7.i386.rpm 6f6972d2dee83c7e90bf1232d4b27a8f libxml2-devel-2.6.26-2.1.2.7.i386.rpm ed34d813c3c7352438132eb31f453f5c libxml2-python-2.6.26-2.1.2.7.i386.rpm Source: d02c6b0608b5469482c8247f8ce4188d libxml2-2.6.26-2.1.2.7.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 4 Date: Mon, 17 Nov 2008 23:54:52 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2008:0988 Important CentOS 5 x86_64 libxml2 Update To: centos-announce(a)centos.org Message-ID: <20081117235452.GA27766(a)vkalu.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2008:0988 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2008-0988.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: d9eb2d4b0e23d818337b428cb140eabc libxml2-2.6.26-2.1.2.7.i386.rpm 6aba61ac92595c7647e25fde08cd3344 libxml2-2.6.26-2.1.2.7.x86_64.rpm 4affa0ffaa4d5397c4d5da62193aab1e libxml2-devel-2.6.26-2.1.2.7.i386.rpm 21b9e48fa837e0415a2f9b480217de7a libxml2-devel-2.6.26-2.1.2.7.x86_64.rpm 7774073fba82b4cbdf3b989e3cdfe7c0 libxml2-python-2.6.26-2.1.2.7.x86_64.rpm Source: d02c6b0608b5469482c8247f8ce4188d libxml2-2.6.26-2.1.2.7.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 5 Date: Tue, 18 Nov 2008 09:51:50 +0100 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2008:0988 Important CentOS 3 i386 libxml2 - security update To: centos-announce(a)centos.org Message-ID: <20081118085150.GA16986(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2008:0988 libxml2 security update for CentOS 3 i386: https://rhn.redhat.com/errata/RHSA-2008-0988.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/libxml2-2.5.10-14.i386.rpm updates/i386/RPMS/libxml2-devel-2.5.10-14.i386.rpm updates/i386/RPMS/libxml2-python-2.5.10-14.i386.rpm source: updates/SRPMS/libxml2-2.5.10-14.src.rpm You may update your CentOS-3 i386 installations by running the command: yum update libxml2 Tru -- Tru Huynh (mirrors, CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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Discuss November 2008