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Re: lilo help on RAID-1 (fwd)

To: linux-xfs@xxxxxxxxxxx
Subject: Re: lilo help on RAID-1 (fwd)
From: Gaspar Bakos <gbakos@xxxxxxxxxxxxxxx>
Date: Tue, 10 Feb 2004 00:35:46 -0500 (EST)
Reply-to: gbakos@xxxxxxxxxxxxxxx
Sender: linux-xfs-bounce@xxxxxxxxxxx
Hi, guys,

I got the following warning about lilo use with XFS boot partition. I'd
appreciate your thoughts about this issue:

"""
Your 'fstab' indicates that /boot is XFS.  Although I do not use this
filesystem, I am led to believe that sector 0, the boot sector, is used as
a superblock for the filesystem.  Hence, overwriting it will destroy the
filesystem.  This occurs for NTFS, and used to occur for DOS FAT.

If XFS is now fixed, then you may ignore the following:

Version 22 RAID-1 codes are not compatible with Version 21.  This is
detailed in "README.raid1".  A compatible mode of operation will have to be
used with NTFS & XFS:  namely, the configuration file will have to contain:

raid-extra-boot = mbr-only

This will suppress the writing of the boot record to /dev/md0 (sector 0 of
the XFS partition); but will, instead, write the boot records to /dev/hda
and /dev/hdc (absolute sector 0 of each disk).

22.5.8 should already have cautioned you about the possible destruction of
the XFS filesystem."""


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