[CentOS] How to change Disk sequence on DELL R900 CENTOS 5.3?

Wed Jul 1 19:21:39 UTC 2009
Robert Heller <heller at deepsoft.com>

At Thu, 2 Jul 2009 02:39:02 +0800 (CST) CentOS mailing list <centos at centos.org> wrote:

> Thank you for your answer.
> change adapter sequence on /etc/modprobe.conf and rebuild image always my first try.
> Unfortunately it does NOT work on DELL R900.  The reason is DELL R900 internal RAID and external RAID use same driver.  There is NO way to change adapter sequence on /etc/modprobe.conf.

Is there some *specific* reason you want the device names in /dev to
match some sequence?  For mounting to work, you can just use UUIDs or
LABELs in /etc/fstab.  This also works for swap partitions (mkswap has a
-L option).

The only other reason would be getting the BIOS to boot the correct
disk (and this would be handled by BIOS settings).  I am not sure what
grub needs exactly (I use lilo myself).

Otherwise, why *exactly* does it matter if a certain disk's device file
is named /dev/sda1 or /dev/sdc1?

Robert Heller             -- 978-544-6933
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