[SunRescue] Sony CDU-55s

[Matthew Haas]

On Tue, 16 Nov 1999, Geoffrey S. Mendelson wrote:
>
> The drive must be address 6 and you must boot it the the "boot cdrom"
> command. 
>

It was already properly set to ID6, and I issued the "boot cdrom" command
at the PROM's ok prompt (both a 2.9 PROM on an LX, and a 2.2 PROM on an
SS-2). 
 
> The "boot cdrom" command as opposed to the "boot sd(0,6,2)" command
> (or it's equivalent) issues a mode-set command to switch the drive to
> 512 byte blocks. Most Sony, almost all Toshiba, and AFIK no NEC drives 
> support this command.
> 

Thanks for that info though. 

> AFIK the only way to change a Sony CD-ROM to boot with a sun that does
> not support the "boot cdrom" command is to replace the ROM in the drive.
> 

Next question, are these ROMs easily acquirable? This is a $7 CD-ROM, I
don't want to put more money in than it's worth (it's either a
semi-portable SPARC CD-ROM or a permanent Amiga CD-ROM).

> The command was added about the time the IPC mutated into the IPX,
> the SLC mutated into the ELC, etc.
> 

cdrom is a devalias to the device on id6. Present in the newer generation
of the PROMs. I've played with machines on both sides of this.

> YMMV, check the FAQ.
>

Which FAQ? I've looked quickly through the Sun CD-ROM FAQ and did not find
anything of relevance.

Thanks.
 
> Geoff.
> 
> -- 
> Geoffrey S. Mendelson
> Tel:  (03) 6944-211  Fax: (03) 6944-225 Email: gsm at bfr.co.il 
> 
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