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centos installation on xserve?
by Mark Quitoriano 11 Jan '08

11 Jan '08

Hi guys, anyone tried to run centos in xserve for production? what architecture do you use? thanks!

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yum hangs when Reading Local RPMDB
by Kai Schaetzl 11 Jan '08

11 Jan '08

All of a sudden yum hangs on a Centos 4.5 (updated to the latest patch before 4.6) when I try to use it. "clean metadata" didn't help. The output of -d5 shows it gets to the point of "Reading Local RPMDB" and then sits there. The process doesn't die, but doesn't seem to do anything from that point on. strace shows this: futex(0xb76dcae8, FUTEX_WAIT, 2, NULL I remember that futex hangs have been mentioned in the past when doing "big" updates from 4.x to 4.y, but this wasn't the case here. python-2.3.4-14.4 python-sqlite-1.1.7-1.2.1 sqlite-3.3.6-2 yum-2.4.3-3.el4.centos Kernel in use is not the latest 4.5 kernel, but one from 4.3. This shouldn't matter in this case, shouldn't it? How can I resolve this? I see that one suggestion is rm /var/lib/rpm/__db*. How do I rebuild it then? I found that cleaning the metadata doesn't remove the sqlite databases, so I removed these from /var/yum/cache as well. The rebuilt databases were different, but it didn't solve the problem. Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com

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Re: [CentOS] yum hangs when Reading Local RPMDB
by David G. Miller 11 Jan '08

11 Jan '08

Kai Schaetzl <maillists(a)conactive.com> wrote: > Before I do this without need I have a question: if the rpm db is > corrupt shouldn't rpm -q or -qa stop working? Kai Not necessarily. A regular user can run rpm -q since it doesn't lock the database (your original posting showed rpm hanging on a FUTEX). I don't know rpm internals but I'd guess that simple queries for a specific package or even a listing of all packages don't go very deep into the rpm database. Also, since the database isn't being updated, there isn't any need to lock the database during the query. Cheers, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce

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Use CentOSplus to carry latest GUI packages
by Ross S. W. Walker 11 Jan '08

11 Jan '08

I don't know if this has been talked about much in the past, but I was wondering if CentOSplus could be used to carry the latest stable versions of the GUI applications KDE/Gnome. These apps often lag behind quite a bit even on the selected stable branch upstream has chosen. For example, would it decrease stability to update KDE from 3.5.4 to 3.5.8? I think it would add to stability as long as you stay within that 3.5 branch, but upstream thinks otherwise and tries to re-invent the wheel by backporting 3.5.5-3.5.8 fixes into 3.5.4 which often don't work completely and have the potential of creating new bugs themselves. Another thing, Xen, the Xen package says it's 3.0.3, but looking at the SRPM it turns out it's the Xen 3.1 kernel with the Xen 3.0.3 'xm' and 'xend' dom0 utilities. In my book that's Xen 3.1, why not just fix the parts of the 3.1 utilities that broke between releases? Anyways Xen may not be a good candidate as others may have environmental dependencies on the upstream version, but upgrading to the latest minor version within a branch for a given application shouldn't break environmental dependencies, ie provide Xen 3.1.4 if it contains the xm and xend fixes that upstream was looking for. What is the consenus on this? -Ross ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.

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CentOS-announce Digest, Vol 35, Issue 3
by centos-announce-request＠centos.org 11 Jan '08

11 Jan '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. CEEA-2008:0028 CentOS 5 x86_64 tzdata Update (Karanbir Singh) 2. CEEA-2008:0028 CentOS 5 i386 tzdata Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Fri, 11 Jan 2008 01:18:45 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEEA-2008:0028 CentOS 5 x86_64 tzdata Update To: centos-announce(a)centos.org Message-ID: <20080111011845.GA18252(a)base.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Enhancement Advisory 2008:0028 Upstream details at : https://rhn.redhat.com/errata/RHEA-2008-0028.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: b866fd855849f6a81c1916187f4219ad tzdata-2007k-1.el5.noarch.rpm Source: b20dacb215b1342c2011aed06b61c1cb tzdata-2007k-1.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Fri, 11 Jan 2008 01:18:45 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEEA-2008:0028 CentOS 5 i386 tzdata Update To: centos-announce(a)centos.org Message-ID: <20080111011845.GA18235(a)base.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Enhancement Advisory 2008:0028 Upstream details at : https://rhn.redhat.com/errata/RHEA-2008-0028.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 24d39598f5138eec781afbc3a3cf9a2f tzdata-2007k-1.el5.noarch.rpm Source: b20dacb215b1342c2011aed06b61c1cb tzdata-2007k-1.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #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 35, Issue 3 **********************************************

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CentOS 5.0 /proc Backup/Restore
by Krautkramer, John 11 Jan '08

11 Jan '08

Hi, I've recently switched to CentOS 5.0 from RedHat 9.0 and found a new directory /proc which contains "virtual" files according to the docs. When I try to run my normal backup which uses cpio to create archives, it complains about not being able to access many files in the /proc directory. This is also true of some files in /sys/devices. Searching for something that wouldn't have this problem, I tried mondorescue. One of the first things I noticed is, by default, mondorescue skips the /proc directory. Does anyone know the details of my observations here? Are these files automatically generated at runtime? Thanks is advance for any insight someone can provide here! John

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NFS/NIS and firewalls
by Scott Ehrlich 11 Jan '08

11 Jan '08

I have a few C5 machines on an isolated LAN that connect to a RHEL5 server via NFS and NIS for authentication. I discovered that one of the C5 workstations worked fine for NFS exporting, but refused to collaborate with the EL5 server for NIS user authentication. I had successfully connected other systems to this server without issue, but this machine was finicky. I had initially enabled the EL5 firewall, then later disabled it, including selecting --disable-firewall. Still, this one C5 workstation wouldn't cooperate for user authentication. Then, as a bit of an experiment, I opted to visit the EL5 services and manually highlight IPtables, clicked STOP, and tried the verification again. This time, the C5 system got the NIS data. Now, if I want to enable a firewall on all machines - As a server, EL5 does have an option to select NFS services be run on specific ports. How do I configure the C5 clients to also communicate on those ports, thus allowing full NIS/NFS user authentication and directory exporting, all the while with built-in firewall protection on all systems? These are all out-of-box setups, with no updates, and full package installs from the install media. As time goes on, I will migrate to the OpenLDAP world, but I haven't had the opportunity to experiment with that just yet. Thanks. Scott

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OT -- Flash (.swf file) audio stream separation
by Robert 11 Jan '08

11 Jan '08

Does anyone here know of a utility that will filter a flash stream into its video and audio components? In order of preference -- 1)RPM 2)any open source tool 3)anything that does the job. Thanks for any clues.

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How to PXE Boot
by Oscar Usifer 11 Jan '08

11 Jan '08

Folks, Are there updated instructions on how to set up PXE boot under CentOS 5.x? I found that the system-config-netboot RPM has been absent, and the instructions written reference it, with a bug report not yet closed on Red Hat. Thanks, OSC http://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-netboot-pxe-c… http://rhn.redhat.com/errata/RHBA-2006-0380.html -- Are we headed for a recession? Read more on the Money Portal Mail.com Money - http://www.mail.com/Money.aspx?cat=money

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Sun Fire X4200 M2 / CentOS 5 APIC issues
by Ryan Ordway 10 Jan '08

10 Jan '08

I had been running CentOS 5 happily on my Sun Fire X4200 M2 systems, then I upgraded the BIOS and iLOM firmware. Now I'm running into what seems to be a fairly common problem with newer motherboards. I cannot boot unless I use the 'noapic' kernel option. If I try to boot the kernel normally, I get the error: "MP-BIOS bug: 8254 timer not connected to IO-APIC" I can boot using noapic, but interrupts are *HORRIBLE* with noapic on the X4200 M2. Here is a system with the new BIOS running with noapic: [rordway@aphrodite ~]$ uname -a Linux aphrodite 2.6.18-53.1.4.el5.centos.plus #1 SMP Fri Dec 7 07:05:12 EST 2007 x86_64 x86_64 x86_64 GNU/Linux [rordway@aphrodite ~]$ cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 0: 149047419 568805 215848 76392 XT-PIC timer 1: 0 2 0 0 XT-PIC i8042 2: 0 0 0 0 XT-PIC cascade 4: 399 80 58 26 XT-PIC serial 5: 138 19 4 4 XT-PIC ehci_hcd:usb2 7: 16203243 179851060 180334480 180522274 XT-PIC ioc0, eth1 8: 1 0 0 0 XT-PIC rtc 9: 0 0 0 0 XT-PIC acpi 11: 764 64 17 21 XT-PIC ohci_hcd:usb1 12: 2 2 0 0 XT-PIC i8042 14: 77 6 13 3 XT-PIC ide0 15: 15353489 192264 58884 10141 XT-PIC eth0 NMI: 0 0 0 0 LOC: 149884909 149891944 149889634 149890602 ERR: 377601098 MIS: 0 Compare this to an identical system running an identical kernel, but the older BIOS: [rordway@selene ~]$ uname -a Linux selene 2.6.18-53.1.4.el5.centos.plus #1 SMP Fri Dec 7 07:05:12 EST 2007 x86_64 x86_64 x86_64 GNU/Linux [rordway@selene ~]$ cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 0: 415472769 0 0 0 IO-APIC-edge timer 1: 2 0 0 0 IO-APIC-edge i8042 4: 270 0 10 17 IO-APIC-edge serial 8: 1 0 0 0 IO-APIC-edge rtc 9: 0 0 0 0 IO-APIC-level acpi 12: 4 0 0 0 IO-APIC-edge i8042 14: 25 74 0 0 IO-APIC-edge ide0 58: 323 464 0 0 IO-APIC-level ohci_hcd:usb1 66: 26 0 0 0 IO-APIC-level ehci_hcd:usb2 74: 5940 981922 7254 524 IO-APIC-level ioc0 82: 2026 53828037 0 138601 IO-APIC-level eth0 90: 2237 61820570 0 689058 IO-APIC-level eth1 NMI: 0 0 0 0 LOC: 415433007 415433000 415432928 415432856 ERR: 0 MIS: 0 Note the huge ERR count with XT-APIC, and ioc0 and eth1 sharing an interrupt (SAS controller and my private network interface) Does anyone know if this has been fixed in the mainline kernel, and if so if this can be integrated into the CentOS 5.1 kernel (namely the CentOS Plus kernel)? Thanks! Ryan -- Ryan Ordway E-mail: rordway(a)oregonstate.edu Unix Systems Administrator rordway(a)library.oregonstate.edu OSU Libraries, Corvallis, OR 97331 Office: Valley Library #4657

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