Thanks Charles....
It looks like you are confirming my fears... this could be an uphill
battle.
> Can you advise whether it is feasible to use the Dachstein
1.02 RAID
enabled
> kernel to build a bootable floppy that will be capable of
mounting and
> reading an ext2 partition on a pair of mirrored SCSI
drived connected to a
> Compaq SmartArray 2/P controller? ( Almost a simple
rescue disk....)
>
> Are additional/specific drivers required for this
controller, or is the
RAID
> support built-in to the kernel all that is required?
>
> I made a quick attempt to do this by substituting your
RAID-IDE kernel.
> Dachstein boots OK, but I can't seem to locate a
mountable device to
use,
> other than fd0 and hda(IDE CD-ROM).
I'm not sure about this. If you're using software RAID, the
RAID kernel
(and whaever driver works for your SCSI controller) is all
that's required.
Probably, the Compaq SmartArray controller requires a
special driver, and
takes care of the raid issues itself. If so, if the driver
is part of the
normal kernel tree, you should simply be able to load
support for it like
any other SCSI card, and access any RAID partitions the card
is configured
for. See my Hard-Disk-HOWTO for details on adding SCSI
support at runtime
(besides the driver for the SCSI card, you need to load the
3 or so modules
that add SCSI support to the kernel).
The worst case is if your card is one of the funky "hybrid"
raid cards.
Kind of like "winmodems", these cards provide hardware
acceleration for the
RAID functions, but require OS drivers to actually talk to
the RAID device
properly. If your card is one of these (I don't know about
the compaq card,
but most of the Adaptec "raid-port" cards fall into this
catagory), you're
probably not looking at a good chance for success, unless
you're already
running linux on the system, in which case you can probably
track down
drivers somewhere for making a boot/rescue disk.
NOTE: A quick search on the compaq site turns up the
cpqarray driver page
on SF, which is apparently a driver for this controller:
http://sourceforge.net/projects/cpqarray/
Charles Steinkuehler
http://lrp.steinkuehler.net
http://c0wz.steinkuehler.net (lrp.c0wz.com mirror)
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