On 01/02/2012 14:38, John Robinson wrote:

On 01/02/2012 14:03, Thomas Fjellstrom wrote:
[...]

quoted

I picked up a refurb IBM
ServeRaid M1015 (aka: LSI 9220-8i) card. It arrived yesterday. Just
have to
wait and see why grub doesn't like it.

When you find out, please let me know - I bought one via ebay, its
firmware was elderly and wouldn't let me put it in JBOD mode, after a
bit of googling I flashed it with IBM's latest firmware, then GRUB
thought my machine had no RAM in it. The card has been sitting in a box
since.

RHEL/CentOS 5's GRUB is buggy, in that it doesn't always read the whole 
of the BIOS's memory map. See 
https://bugzilla.redhat.com/show_bug.cgi?id=445893 and in particular 
comment 7 where there's a link to a replacement GRUB which incorporates 
the patch that was first offered to Red Hat in July 2007. The issue 
likely affects other distros GRUBs too, since GRUB is moribund.

Cheers,

John.