I have your software of NetBsd 1.2.1, and I Have a Macintosch Quadra 
610 whit 8MB RAM.
I had trated to install the system, but I Have Problems,
When I run the Mkfs, the next text 4~lay:
display:

Console Inited

sd0 at scsi ID 0.
       scsi ID 1 - not present.
       scsi ID 2 - not present.
       scsi ID 3 - not responding to Mode Sense.
       scsi ID 4 - not present.
       scsi ID 5 - not present.
       scsi ID 6 - not present.
modesense of Current parameters, page 4(0)
get_DeviceInfo: Error on SCSIRead(), # 5, retry 0
Probably just a phase error, ignore the error -- this time.
Num Heads 2
Num Cylinders = 2740
modesense of Current parameters, page 3(0)
Bytes_Sector is 512 
Sectors Track is 125 
Partition read, SCSIID = 0
nsectors 125, ntracks 2, cylspares 0
optimization space
nsectors 125, ntracks 2, cylspares 0
Disk parameters and geometry is reasonable enough to proceed
formatting.....
Warning: 64 sector(s) in last cylinder unallocated
disk:   216686 sectors in 867 cylinders of 2 tracks, 125 sectors
    110.9MB in 55 cyl groups (16 c/g, 2.05MB/g, 512 i/g)
super-block backups (for fsck -b #) at:
 32, 4160, 8032, 12160, 16032, 20160, 24032, 28160, 32032,
 36160, 40032, 44160, 48032, 52160, 56032, 60160, 64032, 68160,
 72032, 76160, 80032, 84160, 88032, 92160, 96032, 100160, 104032,
 108160, 112032, 116160, 120032, 124160, 128032, 132160, 136032, 140160,
 144032, 148160, 152032, 156160, 160032, 164160, 168032, 172160, 176032,
 180160, 184032, 188160, 192032, 196160, 200032, 204160, 208032, 212160,
 216032,
formatting complete
Partition read, SCSIID = 0
I don't remember any errors, but I wasn't counting.

Next, When I rhe nstaller Utility, the first time I did not have 
problems, but when I run booter utility, the system display a error in 
memory trap,
and a fatal error, finally the ssytem dead-lock.

The second time that I Install all the system, the install utility diplay 
the next message:

bad checksum in tar header- 3458 
Probably not valid tar file
Try using the mini-shell and cpin or cout

Please Help Me