[Beowulf] centos5 as cluster os

Joe Landman landman at scalableinformatics.com
Tue Feb 26 09:15:37 PST 2008

Toon Moene wrote:

> Three months ago I bought a machine (from a vendor I won't name, because 
> it was HP), that featured a 320 Gbyte IDE drive and a (removable, but


> kept installed in my case) 320 Gbyte SCSI device).
> The Stable install went fine - IDE drive got /dev/hda1 (swap) and 
> /dev/hda2 (/ - the rest of the device).  SCSI drive got /dev/sda1 
> (/scratch - I need lots of it).
> So far, so good.  I downloaded the e1000 ethernet driver, because it 
> wasn't included in stable's 2.6.18-5 kernel.  Compiled, modprobed, 
> dhclient'ed to my ISP's modem, all OK.
> Changed /etc/apt/sources.list to exclude the DVD and include
> deb http://ftp.nl.debian.org/debian testing main contrib
> and apt-get update && apt-get dist-upgrade'd away.
> Unfortunately, the resulting system (unlike the original from the DVD) 
> won't boot - it can't find the boot device.  It does (helpfully) display 
> the message that the root device might be renamed (/dev/sda2), but 
> booting with that root device doesn't bring up the system.

Did any of these steps do a


that you remember?  If so, is it possible that your scsi stuff got 
excluded from the initrd?

> Something rather fundamental must have changed (probably in udev) 
> between "stable" and the recent "testing" system - but what ?

Might not be udev, could be a missing scsi driver in initrd.


Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: landman at scalableinformatics.com
web  : http://www.scalableinformatics.com
phone: +1 734 786 8423
fax  : +1 866 888 3112
cell : +1 734 612 4615

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