68kMLA Classic Interface

This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.

Click here to select a new forum.
Making a 20SC disk bootable
Posted by: maz on 2019-09-07 10:44:04
Hey forum, I've installed system 6 from the original disks onto a genuine SC20, everything works except I can't seem to boot from it. What's the trick? SCSI ID is 3. 

Thanks!

-- maz

Posted by: MOS8_030 on 2019-09-07 11:45:10
What Mac are you trying to boot?

If it's a Plus I think the ID needs to be 0.

But I could be wrong. 😉

Posted by: Dog Cow on 2019-09-07 14:58:16
If it's a Plus I think the ID needs to be 0.
Plus should boot any ID except 7.

Maz,  Check your Startup Device CDEV if on an SE or newer machine.

Make sure the drive is powered on before you switch on the Mac.

Did you install System 6 with the same Mac you are now trying to boot it with?

Posted by: MOS8_030 on 2019-09-07 20:25:50
I may be thinking of the early Plus's with the buggy SCSI.

Or I may not know what I'm remembering... 😉

Either way, I believe the drive needs to be terminated as well.

1