Re: Software RAID 5 as root?

Stephen C. Tweedie (sct@redhat.com)
Mon, 13 Sep 1999 21:04:02 +0100 (BST)


Hi,

On Sun, 5 Sep 1999 22:57:57 +0000 (GMT), Aaron Lehmann
<aaronl@vitelus.com> said:

> I'm setting up a fileserver (24gb) for a local school. Originally, I was
> planning to use a Mylex DAC960 card to do RAID 5, but due to problems with
> the card I've started trying Linux software raid. Is there a way I can
> make the RAID 5 be the root partition, or is that a stupid idea? Should I
> instead have a non-redundant root partition? If so I suppose I would have
> to make /var, /usr, and /home symlinks to those on the RAID, as I want
> them all to have redundancy.

As long as you are using a sufficiently recent version of the raid code,
you can mark partitions as "autostart": anything with a partition type
of 0xfd (settable using fdisk) will be automatically raid-started by the
kernel before it attempts to mount root.

--Stephen

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