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Re: Adaptec 2906 SCSI card-again

Please, in the future, have your mail client wrap your messages at a sane
width, say 72 characters - not all of us use GUI mail clients.

On Mon, 1 Oct 2001, mmissett wrote:

> I was all set to install version 2.2 from CD to a G4 before I read in
> the archives about problems with the Adaptec 2906 SCSI card.  My plan
> was to install on an external SCSI drive which is connected by that
> card.  Is this not going to work and/or going to create serious
> problems?  Would a later version (of Debian, not the card) help?  Any
> guidance would be most appreciated.

Well, I have an Adaptec AHA-2906 SCSI card in a G3 blue/white tower at
work, so I can tell you it does work with Linux. However, you won't be
able to boot an OS from a SCSI drive hanging off said card - the 2906 does
NOT have a boot ROM on it, so OpenFirmware CAN NOT talk with the card.
You'd need a card with a boot ROM (A Mac version of one of the 2940
family or one of the newer Ultra160-based controllers, however, would work
- they actually have a boot ROM on the card).

As I said, once Linux is booted, the Linux kernel has a native driver for
the board, so Linux itself can use the card. If you could create two small
partitions on your boot drive - one for /boot (where your kernels live)
and an Apple_Bootstrap partition (for Yaboot to load from), then you could
have your root FS on the external SCSI drive, and just have Yaboot load
the kernel from the /boot partition, which would then happily mount your
root FS off the external SCSI drive.

If you are confused and would like more help trying this, contact me off
the list, and I'll see if I can help.

Derrik Pates      |   Sysadmin, Douglas School   |    #linuxOS on EFnet
dpates@dsdk12.net |     District (dsdk12.net)    |    #linuxOS on OPN

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