[Coco] toolshed tools lock up on ?FS ERROR disks

[Arthur Flexser]

?FS errors are generally caused by a bad GAT.

Sometimes, this is caused by the GAT having been written to Track 0, Sector
2 instead of Track 17, Sector 2, due to a bug that hits when the drive head
gets confused about what track it is on and hits the Track 0 stop in
seeking the correct track.  So, you might want to look for data resembling
an intact GAT in Track 0, Sector 2 and, if you find it, see if the FS error
goes away when you copy this sector to Track 17, Sector 2.

Art

On Sun, Feb 5, 2017 at 8:44 PM, Allen Huffman <alsplace at pobox.com> wrote:

> Today, I learned that the toolshed tools do not handle bad disks very
> well. I ran in to two of my disks that have ?FS ERRORs on them. I made
> sector-by-sector images of my floppies to .DSK files, so I guess I
> replicated some bad disks.
>
> Doing a copy or even a dir caused the tool to hang.
>
> Anyone ran in to this?
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