Messages in this thread | | | Date | Sun, 31 Oct 1999 02:08:46 +0200 (CEST) | From | Peter Svensson <> | Subject | Re: Booting RAID5 |
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On Sat, 30 Oct 1999, Sasi Peter wrote:
> I would like to RTFM about $SUBJECT, bot the best I found vas the > boot-raid howto with a solution for 2.0.x kernels. What has changed since > then? What should I do to be able to boot from a 3 disk RAID5 md device?
I think I have read something about how to boot from a raid5 set somewhere on the net, but I don't remember where. It is relativly straightforward anyway. Create a temporary root and install to it somewhere. Then you create a normal raid5 set with a persistant superblock etc just like the documentation in raidtools-0.90 says. Copy the old root to the new raid5 root, modify your /etc/lilo.conf and fixup your initrd if you use one. (On RedHat you can use mkinitrd which will pick up the raid modules if you have them in /etc/fstab+/etc/mdtab).
You have to have a separate /boot or whatever you call the storage for the actual kernel. Lilo cannot load the kernel from a raiddevice AFAIK.
If you get stuck feel free to send me a mail. I have set up a few computers this way. I think there may be some failure modes that are harder to get out of if you have your root on a raid5 device.
Peter -- Peter Svensson ! Pgp key available by finger, fingerprint: <petersv@psv.nu> ! 8A E9 20 98 C1 FF 43 E3 07 FD B9 0A 80 72 70 AF <petersv@df.lth.se> ! ------------------------------------------------------------------------ Remember, Luke, your source will be with you... always...
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