My files are on another partition so presuamble there
would be no data loss?
There shouldn't be, but if your problems are caused by a physical problem with your hard drive, that's another story. Partitions are just the same drive platter sectioned off, so it's possible to lose data on all the partitions with some kinds of failures.
Either way what is it that
causes this sh-2.05a# and what does it mean?
That's caused by the inability of the OS to boot up into the Aqua part of OS X. In your case, it appears that the OS can't start the GUI because it can't find a file it needs to continue on. The
sh-2.05a part of the prompt is just a shell prompt. The
# part is to tell you that you're logged in as the "root" user, with the highest privileges and rights possible.
Have now tried to do a
clean install but it, too, failed part way through.
Now I can't 'see' the partition I made for OSX at all
to select? I can't use the install CD Disk First Aid
on it as although it can 'see' the partition, it is
greyed out.
Hmm. That's beginning to sound like the drive is going bad. Perhaps physical damage has occured to that partition. If this is the original hard drive in the computer, it may just be failing from old age.
So I re-booted into 9 and looked in the
partition for OSX which was visible on the desktop
and could see 3 Previous System folders, presumably
from my attempts at Archive and Install
Since you can see the OS X partition from OS 9, how much free space is there? The 3 Previous System folders (from the previous Archive and Installs) would be taking up space. But more worrying is that you can no longer select that partition in the Disk Utility or installer. At this point, I hate to say it, but I think you might need to back up everything on all your partitions and see if you can re-partition the drive again.
If I start in OS9 and run its Disk First Aid to
verify it reports
'Problem: invalid sibling link, 4, 5482'
and says it can't repair them
Hmm. According to the MicroMat tech in his second post in
this thread, if the first number is a 3 or 4, that kind of error can be enough of a problem to keep the disk (or partition) from mounting. He says it's possible that another disk utility like DiskWarrior might be able to fix it.
charlie