Installer une Debian Woody sur un volume en RAID software
Disclaimer: I didn't write this article myself. It was originally written by Torsten Landschoff and slightly modified. I didn't test it either, though I read nothing really harmful either [1]
You have to use boot-floppies with a kernel supporting software-RAID and the associated tools.
Setup: 3x80GB IDE drives, /dev/hda, /dev/hde, /dev/hdg, all connected as master. The old onboard bios does not support large disks so onboard IDE is not activated and the off-board IDE controller is used to boot from /dev/hde.
Install: I partitioned the disks as follows to prepare for RAID-1:hda: 512MB primary swap, nothing else so far hde: 512MB primary raid autodetect (0xfd), 500MB primary ext3 hdg: 512MB primary raid autodetectNow I installed Debian into /dev/hde2 (the base system that is). Booting that system is no big deal. Then I installed the raidtools2 packages into that system and created /dev/md0 by way of this entry in /etc/raidtab:
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
persistent-superblock 1
device /dev/hde1
raid-disk 0
device /dev/hdg1
raid-disk 1
Now, mkraid /dev/md0 sufficed to create the RAID-1 disk.
mkfs -t ext3 on it, mount it to /mnt and use tar -C / -clf - .|tar -C /mnt -xvf - to move over the whole system.
Use install-mbr to install a master boot record on /dev/hde and /dev/hdg and setup LILO to install the boot block in /dev/md0.
[1] and should not do much harm, as it is meant to apply to a new installation