I think I finally found the answer to my own question in the openbsd
install procedure.

On my machine, the command is:

boot sd(0,4,1)netbsd -s

The funny 8*..... stuff is for the old monitor stuff.


On Wed, 17 Jun 1998 mcmahill@mtl.mit.edu wrote:

> 
> Unfortunately I think the 'new' command at the 'ok' prompt is for newer
> proms maybe?  When I type 'new', it says "new ?".  Maybe I have version 1
> OpenBoot roms?  Anyway, 'probe-scsi' works, but not 'probe-scsi-all'.  All
> it says about the new drive is "Target 4, Unit 0" (plus info on the
> manufacturer, etc.  The INSTALL document says:
> 
> If you have to use the old-style `sd(c,u,p)' syntax to boot from a
> SCSI disk, you can calculate the parameters as follows:
> 
>         `c'     - specifies the controller number
>         `u'     - the hexadecimal number obtained from evaluating
>                   the expression `(8 * TARGET) + LUN'
>         `p'     - the partition number from which to boot (0=`a', 1=`b',
> etc).
> 
> 
> but I don't know what goes in 'c', and 'u'.  Is the controller number, c,
> equal to 0 because probe-scsi said "Unit 0"? 
> 
> In the line for 'u', is TARGET, then 4 in my case?  What about LUN?
> 
> Sorry for so many should be simple questions...
> 
> Thanks
> 
> Dan
> 
> 
> 
> On Wed, 17 Jun 1998, Erik E. Fair wrote:
> 
> > At the "ok" prompt:
> > 
> > 	new
> > 	probe-scsi-all
> > 
> > note the messy path (probably beginning in /iommu ) for your new disk; then
> > 
> > 	boot <messy-path>/sd@4,1 netbsd -s
> > 
> > that should get you up in the miniroot. ID#4, partition #1.
> > 
> > 	Erik <fair@clock.org>
> > 
> > 
> > 
>