I seem to be even having issues booting the ISO 1.6.2 cd on a 
pmax.  This is a 7.0 ROM DECstation 3100 with a Quantum Lightning 730S and 
a Yamaha CRW8424S CDRW in 512byte sector mode.  Could the following 
failure be caused by an incompatible cdrom drive?

Since I had a working 1.2D install, I used that to install the new disk 
with 1.6.2, which runs fine and dump the old creaking RZ55s.  Without the 
1.2D install, I don't think I could have installed 1.6.2 without resorting 
to netboot or some other helper machine.

The following is the excerpt of booting 1.6.2 pmax cd.  I typed it in by 
hand so there may be some typos.
-----
>> boot -f rz(0,2,0)

NetBSD/pmax 1.6.2 ISO 9660 Primary Bootstrap
Can't load 'rz(0,2,0)/boot.pmax'
7449 scsi stp
open failed
open rz(0,2,0)/boot: 6
Can't load 'rz(0,2,0)/boot'
7449 scsi stp
open failed
open rz(0,2,0)/boot.pma: 6
Can't load 'rz(0,2,0)/boot.pma'

Excptn:    <vtr=NRML>
Excptn pc: 0x80700070
Creg:      0x30000010<CE=3,EXC=RADE>
Sreg:      0x30000000<CU1,CU0,IPL=8>
Vaddr:     0x9d
Sp:        0x806fffe8
exit(-1)

KN01 v7.0
-----
Seeing this, it read the boot sector fine, but had issues loading the 
kernel image.  As expected, I can read cdroms fine in 1.6.2 (mount 
/dev/cd0c /mnt , etc.)  And I'm still a newbie at this, and couldn't get 
cdrecord to -scanbus and find the Yamaha.  The machine's so slow that I 
probably couldn't burn at more than 1X anyway before it'd start 
underrunning...

I haven't used this machine in ages, so I'm quite out of the loop for any 
development issues (other than noticing people starting to drop support of 
this machine).  If there's a cd image I could download to test on my 
DECstation in the meantime, I'd be willing to try it.

-bc

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