[clug] sata, 2.6 and raid

Pietro Abate Pietro.Abate at anu.edu.au
Sun Feb 15 23:54:44 GMT 2004


Hi all,
This is the situation. I've a pc with a couple of sata disks 
on it and I'd like to setup a raid0 (mirroring) system.
I've booted it with knoppix (kernel 2.4.22-xfs) and these two disks
are managed by the ide driver. so far, so good, I got a working
raid configuration running. Now I'm trying to boot the same pc
with a fresh 2.6.2. The problem is that in 2.6 these disks are handled
by the scsi driver and the raid autoprobe configuration goes crazy
and I get a kernel panic because /dev/md0 is not a valid device.

my question are:
- how can I convince the 2.6 kernel to use the ide driver to handle these
  sata disks ? (this way the autoprobe will work fine...)
  
  OR

- how can I convince raid array to not autoprobe and use /dev/sd[a|b]
  instead of /dev/hd[c|d] ?

  OR

- how can I reconfigure the raid disks to autoprobe correctly using the
  scsi disk ? 

The whole point is that the autoprobe works as far all devices numbers
an name don't change. in my case it's looking for 0,22 and 0,23 (that
are supposedly the ide disks) but the kernel (2.6) doesn't know anything
about these two devices as it knows only about scsi devices...

advices ?

ta,
p

-- 
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   thing we have to do, that makes life blessed. -- Goethe
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