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If you use RedHat, see the
Howto set up RedHat
section in Appendix H. I have not tried this. If you use it successfully,
please let me know so I can update this document.
If you don't want to try and build and debug the rescue system, you can get
a generic one created from Slackware-3.4 from:
ftp.bizsystems.com/pub/raid/raidboot-0.01.tar.gz
Perform the following steps:
Correct the entries in fstab to show /dev/md0 as the root
device. Make sure that the partition(s) you use for booting is included in
fstab.
Create /etc/raidboot.conf which describes the raid boot
configuration. This file may NOT contain comments in the first three
lines, after that it doesn't matter.
raidboot.conf
/dev/sda1 /dev/sda2
raidboot
raid5.conf
# comments may only be placed 'after' the three
# configuration lines.
#
# This is '/etc/raidboot.conf'
#
# line one, the partition(s) containing the 'initrd' raid-rescue system
# It is not necessary to boot from these partitions, however,
# since the rescue system will not fit on floppy, it is necessary
# to know which partitions are to be used to load the rescue system
#
# line two, the path to the raidboot config information
# Where the shutdown status, etc... is located at boot time
# It does NOT include the mount point information, only 'path'
# /mntpoint/'path'
#
# line -3-, name of the raid configuration file
# Current raid configuration file i.e. raid1.conf, raid5.conf
A few more things to do and the raid systems is ready to boot.
Create
rc.raidown, as described in Appendix F,
and copy it to /etc/rc.d on the rescue, development, and raid system.
Unmount the rescue system and zip it.
umount mnt
losetup -d /dev/loop0
mv rescue.clean rescue
gzip rescue
Copy the rescue file to the raidboot partitions.
cp rescue.gz /mnt_point(1)/raidboot
cp rescue.gz /mnt_point(2)/raidboot
Activate the raid array.
mdadd -ar
Save the good reference status to the raidboot partition
cat /proc/mdstat | grep md0 > /mnt_point(1)/raidboot/raidgood.ref
cat /proc/mdstat | grep md0 > /mnt_point(1)/raidboot/raidgood.ref
Lastly, configure the boot program as outlined in
Boot Time Configuration Parameters and reboot your system onto the
raid array.
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