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.gzPerform the following steps:
cd /root/raidboot
mkdir mnt
gzip -d rescue.clean
losetup /dev/loop0 rescue.clean
mount /dev/loop0 mnt
copy these files
cp -p /etc/* mnt/etc
cp -p /etc/rc.d/* mnt/etc/rc.d
{or as appropriate for your system}
cp -a /lib/modules/* mnt/lib/modules
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 '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.