Posted: Mon Nov 10 11:14:58 1986
Date-Received: Tue, 11-Nov-86 06:29:54 EST
Organization: Engineering Computer Lab, Pennsylvania State University
I have recently been having problems with my 1541 on several different
disks. The problem is that when I write a file to a disk sometimes I generate
a write error 24 and the disk stops. If at this point I do a directory I can
see everything up to the point where the new file was being written in the
directory. After that point I get a head banging session and another error.
I have also seen this problem when deleting a improperly closed file (a star).
My question is this, is this a problem of my 1541 getting overheated?
Is there anyway to recover these disks (about 6 in my files now). I tried
tracing the directory blocks with a disk evaluator program. I can find the
blocks before the problem and after but the block with the problem is now
all garbage. Is there anyway to patch over the bad block so that I can
read the rest of the good directory blocks. I don't understand the check-
summing required to change things in the directory block. And finally is
there anyway to totally recover the lost directory block?
Any help on this problem will be a great help. At this point I'm triple
backing things up and I've still lost files.
Thanks in advance