[Novalug] Asking early... maybe ok Fedora + HW RAID

[Peter Larsen]

On Wed, 2009-11-25 at 15:56 -0500, greg pryzby wrote:

> I received a box w/ hardware RAID with Fedora 11. It worked great. I 
> tried to preupgrade and on reboot I got a mismatched size error. So I 
> googled to see what could be going on w/o much info. There was an 
> preupgrade in updates-testing that was recommended so I tried that, same 
> issue. From looking at OS level, RAID looked ok.



What kind of "hardware" raid? The hardware raid my box came with turned
out to be software and a lot worse that our md drivers. The problem you
need to be aware of isn't whether the kernel supports it, but if grub
supports it. Grub2 is supposed to have better support, but it's a lousy
documented project (it's included with Fedora - good luck is all I can
say).  I had a simple RAID0 (stripe) and grub failed miserably
reading/understanding the raid on the system board.

If you're going RAID1 you may be more lucky since it shouldn't matter
what disk it chooses - unless there's truely a Hw raid signature on the
disk that'll confuse grub.


-- 

Best Regards
  Peter Larsen

Wise words of the day:
Computers are not intelligent.  They only think they are.
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