From: Ken Causey <ken@ineffable.com>
To: linux-raid@vger.kernel.org
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Subject: Can't figure out how to use mdadm in initrd
Date: 28 Jun 2002 09:45:22 -0500 [thread overview]
Message-ID: <1025275522.600.10.camel@temp> (raw)
I don't get it. I cannot seem to get mdadm to handle a degraded array
no matter what I do. I'm setting up a system with all filesystems
including boot and root on software RAID. I initially tried to use
raidstart in my initrd but ran into a bug that prevents reinstating
missing array members in some circumstances, so I was directed to use
mdadm instead. Here's my current setup:
root is on /dev/md2 (RAID5)
The /etc/mdadm/mdadm.conf file in the initrd contains:
DEVICE /dev/sd*
ARRAY /dev/md2 devices="/dev/sda3,/dev/sdb3,/dev/sdc3"
The modules loaded are
modprobe -k aic7xxx
modprobe -k raid1
modprobe -k raid5
modprobe -k ext3
modprobe -k ext2
mdadm is run as
set "/dev/md2"
[ -b "$1" ] || set "/dev/md/2"
mdadm --assemble --run --scan "$1"
I've tried every combination I can think of and if there is any member
missing (say sdc3) then it complains that that member has a bad
superblock. Please tell me what I'm doing wrong here. If you need more
information, let me know.
Ken Causey
next reply other threads:[~2002-06-28 14:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-28 14:45 Ken Causey [this message]
2002-06-28 14:58 ` Can't figure out how to use mdadm in initrd Neil Brown
2002-06-28 16:36 ` Ken Causey
2002-06-28 17:18 ` Neil Brown
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