Sorry to have taken folk's time.

I just got it:

boot /sbus/esp/sd@0,3:b netbsd -s




 > From: "Eric W. Bates" <ericx@vineyard.net>
 > Date: Fri, 19 Jun 1998 12:21:50 -0400
 >
 > I have a very similar set of problems.
 >
 > I have:
 >
 >     SPARC2 (aquired used, only recently)
 >     OpenBoot 2 (I believe)
 >     probe-scsi reports: target 0, unit 0
 >     probe-scsi-all is not an available command (different version PROM?)
 >     ENV{boot-disk}  disk3
 >     ENV{sunmon-compat?}  false
 >     All other settings are default
 >
 > I have attempted:
 >
 >     # all sd() forms result in an error
 >     #  'xx() format no longer fully supported'
 >     boot sd(0,0,1)netbsd -s
 >     boot sd(0,3,1)netbsd -s
 >     boot sd(,,1)netbsd -s
 >     boot sd(0,18,1)netbsd -s	# after changing SCSI ID to 3
 >     boot sd(0,24,1)netbsd -s
 >
 >     # all disk forms result in:
 >     #  booting sd@0,0 file and args disk:b netbsd -s
 >     boot disk:b netbsd -s
 >     boot disk0:b netbsd -s
 >     boot disk3:b netbsd -s
 >
 >     boot /sbus/esp/sd@0,3 netbsd -s	    # SCSI device not responding
 >     boot /sbus/esp/sd@0,3,1 netbsd -s
 >     boot /sbus/esp/sd@0,0 netbsd -s
 >     boot /sbus/esp/sd@0,0,1 netbsd -s	    # can't open boot device
 >     boot /sbus/esp@0,800000/sd@0,3 netbsd -s
 >     boot /sbus/esp@0,800000/sd@0,3,1 netbsd -s
 >     boot /sbus/esp@0,800000/sd@0,0 netbsd -s
 >     boot /sbus/esp@0,800000/sd@0,0,1 netbsd -s # can't open boot device
 >
 > I found some jumpers and set the ID to 3 and tried all the above
 > again.
 >
 > I turned sunmon-compat? back to false and tried the older syntax:
 >
 >     b sd(,,1)  Which reported that the xx() is not supported.
 >
 > Anyone have any thoughts?
 >
 > Is there a set of PROM commands listed anywhere?  I have little or no
 > luck searching Sun's <http://docs.sun.com/>
 >
 >  > From: mcmahill@mtl.mit.edu
 >  > Date: Wed, 17 Jun 1998 22:59:46 -0400 (EDT)
 >  >
 >  >
 >  >
 >  > 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>
 >  > > >
 >  > > >
 >  > > >
 >  > >
 >  >
 >
 > --
 > Eric W. Bates