Re: d-i oldworld mac: floppies fail on 4400/200 and 7200/75
Malte,
Errors like that are usually symptomatic of a dirty/dusty floppy drive.
In particular, if the boot floppy is ejected, it means that the
firmware got an error trying to read it, or couldn't find the magic
numbers in the magic places that it was expecting from a real-live
Macintosh boot floppy.
Buy and use a floppy drive cleaning kit (a bottle of isopropanol
and a floppy-like thing with a non-abrasive fibrous disk in place
of the usual shiny oxide coated disk). Don't be afraid to use it
couple of times if you continue to have problems after the first
cleaning. You shouldn't need more than two or three cleanings,
though.
You should clean *both* the drive you will be writing the disk on,
and the one you will be reading it on.
Also, buy a box of new floppies. Don't use floppys that have been
sitting around the house for a few years. They accumulate dust
over time and the oxide deteriorates.
Finally, when you write the image to disk, always read it back to
make sure you have a good copy. If you didn't get a good copy,
throw away that floppy disk and use a different one.
Thus:
dd if=boot.img of=/dev/fd0 bs=1024
sync
cmp /dev/fd0 boot.img
Enjoy!
Rick
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