Boot SCSI device from prom 1

[jared71]

Hi,

I need to boot from an external scsi cdrom from prom, and I cant seem to get there. When I try:

{0}ok boot cdrom

It can't find the boot device. When I do a probe-scsi-all, I get:

{0}ok probe-scsi-all
/pci@1f,4000/scsi@3,1
Target 3
Unit 3 Removable Read Only devive Plextor CD-ROM PX-40 TS 1.00
Target 9
Unit 0 DISK Seagate...

Could someone give me the command to boot off this external cdrom scsi drive?

Thanks!

Jared

 

[cfsalmeida]

Check with "devalias" the current value of "cdrom", then change it to correct value /pci@1f,4000/scsi@3,1:d or boot with full path:
ok boot /pci@1f,4000/scsi@3,1:d


Hope this helps,

Regards,

Carlos Almeida,

 

[jared71]

So I figured it out, here's what the syntax ended up being:

{0}ok boot pci@1f,4000/scsi@3,1/disk3,0:f

scsi@3,1 - because the device was on the second controller
disk3,0:f - because the target was "3" (cdroms boot "6" by default).


Normally {0}ok boot cdrom will boot:
pci@1f,4000/scsi@3/disk6,0:f
(assuming that its the first scsi controller and the default disk for cdrom)

 

[Guest_imported]

You could always change number on the back of the cdrom to 6.

 

[Guest_imported]

You could change the number on the back of the cdrom, but you still could not "boot cdrom" (unless you change the devalias for cdrom) because it is on the second SCSI controller.

The second SCSI is:
scsi@3,1
instead of:
scsi@3

Zeke Tamayo