Re: [parisc-linux] Booting from tape

[Grant Grundler <grundler@cup.hp.com>]

Ulrich Strelow wrote:
> I know that this is extremely low priority but...
> 
> I have tried to boot the linux kernel from a SCSI DDS
> tape (copied via dd if=Image of=/dev/rmt/0m bs=512).
> The same kernel (cvs tree from today) boots
> sucessfully via rbootd on my 715/33. Here is the
> console log:
...
> Select from menu: b p2
> 
> Trying scsi.0.0
> Boot path initialized.
> Attempting to load IPL.
> 
> Failed I/O operation with scsi.0.0
> ENTRY_IO status = -10
> 
> 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> 00004F04 000000FF FF0009BF 00000000 800100DC 00000000
> 0025F000 00000400
> 98080000 00000000 00008C60 00000000 000000FF 00000000
> 00000000 00000000

I believe this is a problem with either how the tape was created
or talking to the tape drive. Does anyone know where to find what
the -10 status means?

Another difference when booting from tape (vs disk), is how the
tape is "made". One *must* specify 2k block size. It doesn't matter
for disk devices. Eg: 

	dd if=Image of=/dev/rmt/0m bs=2k

I don't know if Image is intentionally padded to a 2k block size.
One might check that too.

grant


Grant Grundler
Communications Infrastructure Computer Operations
+1.408.447.7253