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Missing 4.1 SRPMS?
by James Pearson 24 Jun '05

24 Jun '05

I can't seem to find autofs-4.1.3-131.src.rpm on the download mirrors... I notice that there are not many SRPMS in the 4.1 /centos/4.1/os/SRPMS directory on the download mirrors - is this because most can be found under /centos/4.0/os/SRPMS and /centos/4.0/updates/SRPMS? - or should all the 4.1 SRPMS be in /centos/4.1/os/SRPMS ? Thanks James Pearson

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Multiple IP Addresses in a single NIC
by Joao Medeiros 23 Jun '05

23 Jun '05

Hi all, I've been trying to add a second ip address to one of my network cards in my CentOS box. I've defined the alias on top of eth1 which has become eth1:1 with a different ip address. I can ping the new ip address both from my linux box as well as from my Windoze desktop, however I can only access my Apache web server setup as a virtual host from within the Linux box. If I try to access it from the desktop I get an "Operation Timeout..." error. I'm sure I missed out something really basic. Browsed Google and the CentOS mailing list (plus RH) and can't figure it out. Networking is not one of my best subjects... Someone care to shed some light or point me to a fairly decent link out there which covers this topic? TIA, --JM João Medeiros Linux User 381318

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Re: Opteron Mobo Suggestions
by Bryan J. Smith <b.j.smith＠ieee.org> 23 Jun '05

23 Jun '05

From: Peter Arremann <loony(a)loonybin.org> > Actually, support for the 9500s has gotten quite a lot better over the past > few months - you might want to give them another try. A college of mine > mis-ordered a few of them when they first came out and at the beginning the > results were less than stallar. By now (FC4 and CentOS 4U1) the drivers are > stable enough that the tests I ran could no longer crash the box. That is good to here. My actual experience had been limited, but positive. But given the slew of issues, I just stopped recommending the 9500S until I heard otherwise. -- Bryan J. Smith mailto:b.j.smith@ieee.org

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Build scripts for CentOS4?
by James Pearson 23 Jun '05

23 Jun '05

Are there any scripts available for rebuilding CentOS4 - or more specifically rebuilding a custom boot.iso? There is a /scripts directory on the download mirrors, but these scripts are specific to CentOS3/i386 Thanks James Pearson

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Microcode error
by Adam Breaux 23 Jun '05

23 Jun '05

/etc/init.d/microcode_ctl start /etc/init.d/microcode_ctl: microcode device /dev/cpu/microcode doesn't exist? This is on a clean install from the 4.1 x86 ISO. This is the 2nd box that is reporting this error. Adam Breaux Sr. Network Administrator Domain Bank, Inc. 23 W 4th St. Bethlehem, PA 18015 Phone: 610.317.9606 Fax: 610.317.9570 abreaux(a)domainbank.com http://www.domainbank.com

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Re: Opteron Mobo Suggestions
by Bryan J. Smith <b.j.smith＠ieee.org> 23 Jun '05

23 Jun '05

From: Peter Farrow <peter(a)farrows.org> > I had trouble with Tyan boards and BIOS revisions not getting Processor > numbers and speeds correct. > We also had early life failures with Asus boards, and since switched to > MSI, we now use the MSI 9161 > K8D Master 3 > http://www.msi.com.tw/program/products/server/svr/pro_svr_detail.php?UID=560 > without any problems.. Ack, no block diagram in MSI's manual. It's an AMD8131+AMD8111, no HyperTransport tunnel for any video channels. So you can probably assume AMD8111 bridge attached to AMD8131 tunnel to CPU #0. Since there is only one high-speed tunnel, you really can't get more optimal than adding another HT tunnel chip. I guess I'm just looking for the "holy grail" in (2) AMD813x's on a 2-way board. -- Bryan J. Smith mailto:b.j.smith@ieee.org

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Postfix problem with DNS
by Jakub Wojtanowski 23 Jun '05

23 Jun '05

Today I have changed my DSL modem and problems with postfix begun. It receives mail, but cannot send any. In logs I can read Jun 22 19:39:53 server postfix/smtp[5040]: 9A51711FF85: to=address(a)somedomain.com, relay=none, delay=12840, status=deferred (Host or domain name not found. Name service error for name=somedomain.com type=MX: Host not found, try again) My resolv.conf is proper. I can ping any server, but postfix cannot see them. What can I do ? Postfix 2.1.5 Best Regards Kuba ---------------------------------------------------------------------- OMNIXMAIL! Jesli masz telefon w sieci Era i dostep do WAP, to mozesz na komorce odbierac poczte ze wszystkich swoich kont poczty e-mail! OMNIXMAIL jest w Era Omnix: http://link.interia.pl/f1896

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NTFS patitions in CentOS
by Dominik Składanowski 23 Jun '05

23 Jun '05

Hi, I tried to mount NTFS partitions to my CentOS installation. The message is: "mount: fs type ntfs not supported by kernel" Is any possibility to mount it? Maybe I should load some kernel module? Regards -- ____________________________________________________________________ D o m i n i k S k ł a d a n o w s k i

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Re: Opteron Mobo Suggestions
by Bryan J. Smith <b.j.smith＠ieee.org> 23 Jun '05

23 Jun '05

From: Chris Mauritz <chrism(a)imntv.com> > If you have a task that's I/O bound, then perhaps Bryan's concerns will > impact your decision on a motherboard. For my purposes, I'm mostly cpu > bound, Then it doesn't apply. > it really doesn't mean a hell of a lot to me that one cpu is > "stuck" with mundane I/O tasks. And as cpus get faster and faster, > this becomes less of an issue (if it's really an issue at all for most > tasks). That's not it at all. It has nothing to do with CPU performance. It has everything to do with interconnect and the processor affinity with regards to I/O and memory mapped transfers. > Also, as Bryan mentions, the S2895 splits the I/O up a bit > better and the newer revs of that board support dual core Opterons > too. Technically, all mainboards should support dual-core Opterons. But the market reality is why give consumers a BIOS update when you can charge for a new mainboard? ;-> Dual-core A64/Opterons don't change the interconnect one bit. Dual-core Xeons/P4s are a whole different story. > So if you're in an I/O heavy environment you could choose that > board rather than the S2882. Assume you could make use of one of the PCIe x16 slots for a storage or other communications device, as well as the 2nd NIC. -- Bryan J. Smith mailto:b.j.smith@ieee.org

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Re: Opteron Mobo Suggestions
by Bryan J. Smith <b.j.smith＠ieee.org> 23 Jun '05

23 Jun '05

From: Kirk Bocek <t004(a)kbocek.com> > I've been planning to build a dual Opteron server for awhile. > I'd like to get people's suggestions on a suitable motherboard. I assume you read 2004 November Sys Admin on the Opteron, including avoiding cheap mainboard designs? http://www.samag.com/documents/sam0411b/ Specifically figure 6 for a 2-way mainboard: http://www.samag.com/documents/s=9408/sam0411b/0411b_f6.htm > I've looked at the Tyan K8SE (S2892) and K8SRE (S2891) but would > like to find more Linux-specific experiences with these boards. On 2-way, you want one with an AMD8131 (or AMD8132) HyperTransport PCI-X 1.0 (2.0) tunnel. On 4-way, you want one with at least 2 such tunnels. I assume you want 2-way. The S2891 is a nice, 2-way board for 1/2U. The S2892 is nice if you want more of a traditional SSI EEB mainboard. They are true NUMA and don't cut corners on the CPU and memory. _But_, unfortunately _both_ mainboards put _all_ I/O on CPU #1. That's not ideal. As such, you might be better of going with the S2895 which puts the nForce Pro 2050 and 1 GbE NIC on CPU #2, at least if you have a PCIe storage or NIC cards. It looks more like a workstation board, but the fact that 1 embedded GbE NIC _and_ 1 PCIe slot is on CPU #2 helps improve processor affinity for I/O (especially under Solaris, but even Linux to an extent as well). Tyan continues to disappoint me by putting _all_ I/O on 1 CPU. The only option where they don't is the nForce Pro 2200+2050 combination on the S2895 where the 2050 goes on CPU #2. Tyan should put the AMD8131 on CPU #2 on the 2891/2892 so it doesn't contend with the nForce 2200 on CPU #1 and its slots/peripherals (and there is no 2050). > Some features I expect are at least 4 SATA (SATA-300?) ports, ??? Why "dumb" SATA channels ??? Why not a 3Ware Escalade 8506-4+ or a LSI Logic MegaRAID 300-8X? > serial console support in the BIOS, Any PhoenixBIOS will typically give you that. > USB 2.0 and IEEE-1394 ports, On a server? The last thing you want is any storage over those two. I've been ripping out a lot of external storage solutions that use USB 2.0 or IEEE-1394 because they put server stability at risk. > low-end on-board video. Most low-footprint mainboards have video on-mainboard these days. Typically just glued to a PCI bus. > Anyone care to share their experiences? Just curious why you want "dumb" SATA channels, let alone external storage over USB or FireWire on a _server_. -- Bryan J. Smith mailto:b.j.smith@ieee.org

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