Ian C. Blenke wrote:
> steve szmidt wrote:
>
>> On Wednesday 26 July 2006 13:56, Eben King wrote:
>>
>>
>>> On Wed, 26 Jul 2006, Mark Bishop wrote:
>>>
>>>> Ok, so how does this sound. Get two PATA drives, mirror them in a
>>>> RAID.
>>>>
>>> Software or hardware RAID? I still don't think you can boot from a
>>> software RAID drive, as at boot time, there's no software running to
>>> interpret the RAID.
>>>
>>
>> We covered howto nicely at the middle of month.
>>
>
> To answer this more specifically (though I'd love to add things like
> this to the SLUG FAQ):
>
> 1. You can use "autodetect software raid" and mark your root raid
> slices as partition type "fd". Your kernel will auto-probe for
> partition type "fd" and auto-assemble those partitions into a root
> raid device.
>
> 2. You can specify a boot command line like
> "md0=1,/dev/hda1,/dev/hda2" and manually specify the software md
> devices in your lilo/grub kernel arguments.
>
> So, yes, you can boot off of a software raid root device.
>
> Converting a running system to use software raid for the root
> filesystem is also relatively simple once you get the feel for
> "missing" devices. Google for "mdadm missing".
>
> - Ian C. Blenke <ian@blenke.com>
>
>
Why don't you just put the OS and stuff on a little PATA drive and put
the SATA's in there as storage mounted under that? In installation, it
would largely auto-configure under pretty much any distro, and it would
do what you want it to do. Got something against a little PATA? Huh? HUH?
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