Re: booting RAID partitions

Marc MERLIN (marc_merlin@magic.metawire.com)
28 Aug 1998 23:49:49 GMT


On 26 Aug 1998 17:43:19 -0700, MOLNAR Ingo <mingo@chiara.csoma.elte.hu> wrote:
>there is a trick though: to allocate a large enough file and determine
>where the contents map to, and pick out the blocks belonging to the target
>disk(s). Then the image can be scattered across those blocks and fed to
>lilo's chainloader. The image will only be on that disk. (the real image
>file will be a big file, sparsely containing the real image)

Actually, I'd suggest something slightly better:
Instead of writing kernel chunks only on the first disk, those chunks may as
well be written on each disk, and you'd end up with a complete bootable
kernel on each disk.
The advantage is that if you loose a disk in a Raid 4/5 configuration, you
still have a working kernel on each of the other disks, and you can still
boot in degraded mode.

Marc

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