[luau] Scrounging for parts

[Brian Chee]

You can use old non-sun cd drives all you want....here is a tech note on
what it wants. Most cd drives have jumpers to reset the block size of the
drive...especially older scsi-I drives.

Subject: Re: Sun's cdrom
To: Lloyd Parkes <Lloyd.Parkes at vuw.ac.nz>
From: Jim Wise <jimw at numenor.turner.com>
List: port-sparc
Date: 10/31/1997 13:07:46
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On 31 Oct 1997, Lloyd Parkes wrote:

> 386BSD (whose SCSI driver I have hacked on) coped with strange block
> sizes by asking the device for some geometry information. This piece
> of code was upto several lines long. I have no idea why it is so hard
> for SunOS 5 to cope with the idea of asking a device what its block
> size is.

SunOS 5 (or 4, for that matter) _will_ ask the cdrom what its block size
is.  OpenPROM won't.  The difference is that you can use any CD-ROM with
SunOS, but you can only boot off of ones capable of a 512 byte block
size.

Which is not saying that Sun shouldn't make a more flexible boot ROM,
but that won't help existing older Suns, which are exactly the systems
we support...

- --
				Jim Wise
				jim.wise at turner.com

University of Hawaii ICS Dept
Advanced Network Computing Lab
1680 East West Road, POST rm 311
Honolulu, HI  96822
808-956-5797 voice, 808-956-5175 fax

----- Original Message -----
From: "Alex Lum" <alexlum at hawaii.edu>
To: <luau at videl.ics.hawaii.edu>
Sent: Tuesday, May 20, 2003 2:39 PM
Subject: Re: [luau] Scrounging for parts


> need it permanently or just to borrow for software/os installation?
>
>
>
> At 08:40 PM 5/19/03 -1000, you wrote:
> >-----BEGIN PGP SIGNED MESSAGE-----
> >Hash: SHA1
> >
> >Aloha,
> >
> > Anybody know where I can find a Sun CD drive for a Sparc 20?
> >
> >Mahalos,
> >
> >Ben
> >-----BEGIN PGP SIGNATURE-----
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> >iD8DBQE+yc3c2CQyDWFa64MRAlpTAJ9wGi4fUY/BE9ZXm5k5ldhKGbFEuwCfS/fA
> >Oze8lJ2NOOOKPIfgYGeeYng=
> >=LLK5
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