Re: Booting Ultra 5 from external SCSI
On Mon, 2005-08-08 at 12:13 +0200, Dr. Zimmermann wrote:
> Hi Debians,
> my system is an ultra 5 with a 360 MHz CPU and 512 MB RAM.
> Getting frequent ide resets (specially under load) from the builtin ide
> drive/controller I'd like to use my external SCSI disk as boot and root
> device. SCSI adaptor and disk have been initially used under Solaris
> (5.8 and 5.9) and therefore are known to be OBP aware.
> Is anybody running such a configuration ?
I recently installed Etch on a U5 with an internal SCSI drive and a PCI
SCSI controller that is supported for booting via openprom. I removed
the IDE hard drive, and used a businesscard ISO via the IDE CDROM (on
its own cable) to boot the machine and start an Etch install.
> If so, are there any special requirements concerning the
> * disk partitioning
Same as on an IDE drive on this platform. On Sparcs and Ultras, I use a
small first partition as /boot, and the rest of the drive as / and swap,
to live within the usual SILO partition location constraints.
> * openprom settings
After the base installation completes and attempts to reboot --- dumped
into openprom, as expected. There was no alias for the path through my
SCSI controller to the drive. I puzzled out a path, saved it as
"diska" (probably with nvalias), then set the boot device to "diska".
> * silo configuration
I probably used whatever the Etch installer set up. May have had to add
an initrd statement.
Using a 2.4.27 kernel.
> The FAQs I've found a more related to the older (sbus) systems though
> the hardware of the ultra 5 is more 'pc-like'.
-- good luck, SP
> THNX, Roger