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what else is missing in 5.4?
by Alan McKay 22 Oct '09

22 Oct '09

[root@alan centos]# du -sh 5.* 19G 5.3 14G 5.4 -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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EDAC Kernel Panic 2.6.9-78 and above
by Chris Miller 22 Oct '09

22 Oct '09

I've got a production system running CentOS 4 that was rock solid until I upgraded from 2.6.9-55 to 2.6.9-78.0.13 (now running 2.6.9-89.0.11). The system now crashes intermittently after a few weeks. I finally caught the panic message : EDAC MC0: INTERNAL ERROR: channel-b out of range (4 >= 4) Kernel panic - not syncing: MC0: Uncorrected Error Looking at the kernel changelog, I see that EDAC support was added for the Intel 5000 chipset in 2.6.9-68.20.EL which this server runs. I'm trying to determine if this is a potential memory issue, or is this related to some other hardware item. Also considering disabling EDAC in the kernel (is "noedac" a valid option?) as a last resort. I will run memtest86+ on the server as soon as possible to check the memory, just formulating my game plan if it's something else. Thoughts? Chris

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Re: [CentOS] Missing yum-priorities in 5.4?
by Tony Molloy 22 Oct '09

22 Oct '09

On Thursday 22 October 2009 13:04:05 Sorin Srbu wrote: > >-----Original Message----- > >From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On > > Behalf > > >Of Morten Torstensen > >Sent: Thursday, October 22, 2009 12:37 PM > >To: CentOS mailing list > >Subject: [CentOS] Missing yum-priorities in 5.4? > > > >Is this missing on purpose? Function merged with another yum package? > >Or is it just missing as an oversight? > > I just upgraded a few systems with v5.4, rebooted and then ran an update > again. The yum-priorities plugin is loaded and used with the regular "yum > update" command. > > Or am *I* missing something here? I don't see anything wrong... > > To the CentOS-devs I'd like to extend a great thank you. The v5.4 upgrade > went in w/o a hitch and seems to be working excellent. Ditto. The problem is not with updated systems but with newly installed systems. yum-priorities is missing from newly installed 5.4 systems. It's fine with updated systems. Tony -- Dept. of Comp. Sci. University of Limerick.

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Security updates for Centos 5.3
by slchavarria＠iusacell.com.mx 22 Oct '09

22 Oct '09

Hello, Someone knows which security updates i have to apply to a host with Centos 5.3 x_64. Thank you in advance and greetings SLCC ----------------------------------------- Este mensaje y cualquier archivo que se adjunte al mismo es propiedad de Grupo Iusacell y contiene informacion privada y privilegiada para uso exclusivo del destinatario. Si usted recibe esta comunicacion por error, no esta autorizado para copiar, retransmitir, utilizar o divulgar este mensaje ni los archivos adjuntos. En este caso por favor notifique inmediatamente al remitente por este mismo conducto. Gracias.

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Low End NAS hardware.
by Drew 22 Oct '09

22 Oct '09

Hey, The recent discussion on NAS/SAN and the Thecus N8800 got me to thinking. Bit of background. I have an old Dual Athlon MP2800+ that I'm using for a home web/file server. It runs fine but between the noise of the various fans and it's location in the living room, I've been asked by my spouse to find a replacement for it that's smaller & quieter. Looking at the Thecus, and based on experience with Atom based Mini-ITX systems at work, I was thinking about rolling my own. My questions is, for a small home server that runs apache/php/mysql and Samba, how well do the Mini-ITX boards like the VIA C3/7 & Intel Atoms handle this sort of task? I've used VIA systems as MythTV frontends but never as file/web servers. I'd expect they'd do fine for home use but I've never tried. Thanks, -- Drew "Nothing in life is to be feared. It is only to be understood." --Marie Curie

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Thanks! Desktop update successful
by Ron Blizzard 22 Oct '09

22 Oct '09

Just used 'yum clean all' and 'yum update.' So far no problems at all. I had to double check to make sure that I actually updated -- no new wallpaper or splash screen this time. Thanks everyone. -- RonB -- Using CentOS 5.4

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Caught between a Red Hat and a CentOS
by Ron Blizzard 22 Oct '09

22 Oct '09

Interesting column at CNET... http://news.cnet.com/8301-13505_3-10376762-16.html ~~ "Novell has been positioning itself as the Avis of Linux, a distant but gaining Red Hat competitor that "tries harder." Like Oracle, Novell argues that it can give customers Red Hat value at a lower price. "There's just one problem with this marketing spin: the "low-cost alternative" to Red Hat isn't Novell. It's CentOS. And CentOS is free as in $0.00. "It's true that adoption of unpaid Linux like CentOS is booming, and that this no-cost alternative to more expensive solutions like Red Hat is a real threat to Red Hat. This is no doubt why Red Hat has made "free-to-paid" a core element of its ongoing strategy, as related in its recent earnings call. "But it's a much bigger threat to Novell and Oracle, both of whom are trying to position themselves as cheaper alternatives to Red Hat Enterprise Linux." ~~ I wonder if Red Hat has ever considered limited, paid support options for CentOS? -- RonB -- Using CentOS 5.3

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using CentOS as an iSCSI server?
by Rudi Ahlers 21 Oct '09

21 Oct '09

Has anyone succesfully setup, and used CentOS as an iSCSI server? I'm trying to setup a server with 4x500GB HDD's, setup in RAID 10 to act as an iSCSI server for a virtualization project, but I can't find a decent howto on how to setup an iSCSI server using CentOS. I would like to setup something like Openfiler, but we also need todo some other stuff that OpenFiler doesn't support, so I would prefer to export some of the HDD space (about 500GB) as iSCSI LUN's -- Kind Regards Rudi Ahlers CEO, SoftDux Hosting Web: http://www.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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File Server using ISCSI attached storage - Hardware HBA ?
by Clint Dilks 21 Oct '09

21 Oct '09

Hi Everyone I am looking at setting up a File Server that uses ISCSI storage. It is the first time I have done this, so I am wanting to get peoples thoughts on whether for CentOS systems you should use Hardware based ISCSI HBA's? If so do I need to be careful about what HBA I use ? Currently I am looking at purchasing a Dell System using Broadcom ethernet cards/ ISCSI HBA. From google searching it seems QLogic HBA's are quite popular ? Any suggestions or experience you can offer appreciated. Have a nice day

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Recommendation for PCI-e SATA RAID 5 card?
by Neil Aggarwal 21 Oct '09

21 Oct '09

Hello: I am looking for a recommendation for a PCI-e RAID card for my server. The server has a PCI-e x16 low profile slot so the card has to be at most 6.6 inches long x 2.536 inches high. I would like to use RAID 5 with 3 drives so I have to have those capabilities. It has to be CentOS 5.4 compatible (Of course!). I took a look at the offerings from 3Ware, but their cards are too long. If you have a card you are happy with, I would appreciate a recommendation. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system.

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