I recently tried using dd to transfer a binary image to floppy.
It was the Linux root disk image, color.gz. Basically, dd works
ok with non-gzipped files, but with files in gzip format, it
chokes:
root@lc186 floppies# dd if=color.gz of=/dev/rfd0
dd: /dev/rfd0: Invalid argument
2453+1 records in
2453+0 records out
1255936 bytes transferred in 42.665771 secs (29437 bytes/sec)
Notice the line that says:
2453+1 records in
^^^^^^
For some reason, it is offsetting to 1 before writing to disk.
Rawrite.exe does this correctly. I tried with net.i, and it gave
me no problems:
root@lc186 floppies# dd if=net.i of=/dev/rfd0
2156+0 records in
2156+0 records out
1103872 bytes transferred in 39.172698 secs (28180 bytes/sec)
I tried skip=0, but that didn't work. Apparently, dd has some
limitations with what kinds of files you can transfer to
floppies. I downloaded the files in binary format, so there's no
problems there.
--
- Donn
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