Subject: Re: booting from CD
To: None <mcmahill@mtl.mit.edu>
From: Uwe Lienig <Uwe.Lienig@fif.mw.htw-dresden.de>
List: port-pmax
Date: 03/30/2000 12:48:57
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mcmahill@mtl.mit.edu wrote:
> 
> on my DECstation 5000/200, I'm trying to boot from a ISO 9660 CD.
> 
> >>cnfg
>  7: KN02-AA  DEC      V5.3c    TCF0  ( 96 MB)
>  6: PMAD-AA  DEC      V5.3a    TCF0  (enet: 08-00-2b-1b-c1-24)
>  5: PMAZ-AA  DEC      V5.3b    TCF0  (SCSI = 7)
>  1: PMAD-AA  DEC      V5.3a    TCF0  (enet: 08-00-2b-1a-80-19)
> >>cnfg 5
>  5: PMAZ-AA  DEC      V5.3b    TCF0  (SCSI = 7)
>     ---------------------------------------------------
>     DEV   PID                VID        REV    SCSI DEV
>     ===== ================== ========== ====== ========
>     rz0   RZ56     (C) DEC   DEC        0300   DIR
>     rz5   CD-ROM CR-8004A    MATSHITA   2.0a   CD-ROM
> 
> >>boot 5/rz5/netbsd.pmax
> ?IO:  5/rz5/netbsd.pmax  (bb rd)
  ^------------------------------^

AFAIK, you are out of luck. DECstation's no matter of their type won't
boot off a CD-ROM with a CDFS (iso whatever) on it. The problem lies in
the bootprom, which assumes, that the blocksize of the cdrom is 512
bytes (which isn't true for CD-ROMs using CDFS). If anybody knows, how
to get around this problem, let me know ...

> 
> After I made the image, I did (on pmax):
> 
> installboot -v image.iso bootxx_cd9660
> 
> then on an alpha
> 
> installboot -vs image.iso bootxx_cd9660
> 
> There is a kernel called "netbsd.pmax" in the root partition.
> 
> Any thoughts?
> 
> -Dan
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