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[Hubert Tonneau <address@hidden>] GRUB does not recognize ext2 RAID 1

From: Gordon Matzigkeit
Subject: [Hubert Tonneau <address@hidden>] GRUB does not recognize ext2 RAID 1
Date: 12 Feb 2001 15:57:49 -0600
User-agent: Gnus/5.0803 (Gnus v5.8.3) Emacs/20.7


--- Begin Message --- Subject: GRUB does not recognize ext2 RAID 1 Date: Fri, 09 Feb 2001 09:02:38 GMT
When I set the root ext2 partition over RAID 1 (what I now do on all
my servers because software RAID using 2 IDE disks is so cheap), then
the type of the partition has to be FDh instead if 83h so that Linux
kernel software RAID 0.90 will find the partitions even if the disk
changed of name because a previous one is down.

The problem is that GRUB will not recognize such a partition as ext2,
so it will refuse to load a kernel on it.
Should be fairly easy to fix through simply assuming that FDh is the
same as 83h, even if it's not always true (true only if it holds a
RAID 1 set, as opposed to RAID 5 and others).

I think it is possible to specify two boot sequences to GRUB, so GRUB
would be abble to boot the kernel even if the first disk in the RAID 1
set is down, what LILO will not do (as far as I know).

Hubert Tonneau

--- End Message ---
 Gordon Matzigkeit <address@hidden>  //\ I'm a FIG (http://fig.org/)
Committed to diversity and freedom \//  Run Bash (http://fig.org/gnu/bash/)

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