RS/6000 7043-140 boot floppies
Alan Perry
aperry at snowmoose.com
Mon Feb 18 11:49:30 CST 2019
Is there some trick to making boot floppies for the RS/6000 7043-140 (a
mid-90s PReP architecture machine)?
I initially tried to install Solaris 2.5.1 on it and created the boot
floppy by dd'ing the image using a SPARCstation (running NetBSD). I
dd'ed the image over, dd'ed it back and verified the SPARCstation could
read back what it had written to the floppy. The RS/6000 loads what is
on the floppy, but hangs transferring control to what it loaded.
The 7043-140 does not appear on the list of supported systems in the
Solaris 2.5.1 release notes, so, even though 2.5.1 supports PReP and the
7043-140 is a PReP machine, maybe they aren't compatible, so I tried
NetBSD. The 7043-140 is listed as a supported system.
The NetBSD boot floppy images are confusing to me. The files are too
large to fit on a 1.44M floppy. I didn't see instructions on how to make
boot floppies out of the .fs files one can download in the install
instructions. I went ahead and tried to dd the part that fits onto a
1.44M floppy and try to boot that and of course that failed. I have
e-mailed the NetBSD prep mailing list and no response from that.
The system does boot the AIX install on one of its hard disks, but this
is a recycled system and I don't have usernames/passwords for that install.
Does anyone here have a suggestion on how to proceed?
alan
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