4 Nov
2022
4 Nov
'22
1:56 a.m.
On Thu, 3 Nov 2022, Grant Taylor wrote:
Does anyone have a 101 level boot strap guide for
someone wanting to get into
creating better-than-dd disk images?
I'm finding myself back in a position where I want to image / preserve
multiple 5¼ & 3½ inch disks. I think all of them are PC compatible disks.
Probably standard FAT-12 and a handful of super capacity disk formats from
the likes of IBM / Microsoft where they tried to squeeze 1.6 (?) MB on a 3½
inch disk.
Short answer: ImageDisk
For FAT/DOS disks, I have a small script that creates both an .imd file
and a .zip file of the disk contents, essentially this:
DRV=/dev/fd0
DOSDRV="a:"
# Create both .imd and .dd image
imd -i1 -R -a -d $DRV -r "$NAME.imd"
# Compress
pigz -9 "$NAME.imd"
# Create directory listing
mdir -i "$NAME.imd.dd" -a/ > "$NAME.dir"
# Extract contents from .dd
mkdir "$NAME"
mcopy -i "$NAME.imd.dd" -smpv :: "$NAME/"
# ZIP contents
cd "$NAME"
zip -r "../$NAME.zip" .
# Remove temporary files
cd ..
rm -rf "$NAME"
rm -f "$NAME.imd.dd"
Christian