dskdump - Sector-level copy from one floppy or image file to another
dskdump [
-itype TYPE] [
-otype TYPE] [
-iside SIDE]
[
-oside SIDE] [
-icomp COMP] [
-ocomp COMP]
[
-idstep] [
-odstep] [
-retry COUNT] [
-format FMT]
[
-first CYLINDER] [
-last CYLINDER]
INPUT-IMAGE
OUTPUT-IMAGE
Dskdump copies floppy discs or images, optionally converting image types. Unlike
dsktrans(1),
dskdump can handle discs with different numbers or
sizes of sector on different tracks.
- -itype TYPE
- Determines which driver is to be used to read from the
source disc.
- auto
- Select according to the disc image file. This is the
default.
- dsk
- Use the DSK (CPCEmu format) image driver.
- edsk
- Use the extended version of the DSK format.
- floppy
- Use the floppy driver.
- myz80
- Use the hard disk (MYZ80 format) image driver. (This format
cannot be autodetected.)
- cfi
- Use the CFI (DOS fdcopy format) image driver. (This format
cannot be autodetected.)
- apridisk
- Use the ApriDisk image driver (from the utility of the same
name). (This format cannot be autodetected.)
- raw
- Use the raw driver.
- -otype TYPE
- Determines which driver is to be used to write to the
destination disc. The drivers are as for -itype.
- -icomp COMP
- Select the compression method used on the source disc image
file (has no effect when reading a floppy disc).
- auto
- Detect from the first few bytes of the file. This is the
default.
- sq
- Huffman coded (SQ / USQ).
- gz
- Gzipped (gzip / gunzip).
- bz2
- Burrows-Wheeler compressed (bzip2 / bunzip2).
- -ocomp COMP
- Select the compression to be used on output. Compression
methods are as for -icomp, except that bz2 cannot be used.
- -iside SIDE
- Determines which side (0 or 1) of the source disc is to be
read from.
- -oside SIDE
- Determines which side (0 or 1) of the destination disc is
to be written to.
- -idstep
- Double-step the source drive (used to read 360k discs in
1.2Mb drives). Only supported by the Linux floppy driver.
- -odstep
- Double-step the destination drive (used to write 360k discs
in 1.2Mb drives). Only supported by the Linux floppy driver.
- -retry COUNT
- Set the number of times to attempt a read/write/format in
case of error.
- -format FMT
- Do not autodetect the disc format; use the named format.
dskdump does not make extensive use of the disc format; it is
chiefly used to provide a guess at the number of tracks to dump.
- -first CYL
- Start copying at the specified cylinder. Cylinders prior to
this will not be formatted or written.
- -last CYL
- Copy up to and including the specified cylinder.
- -odstep
- Double-step the destination drive (used to write 360k discs
in 1.2Mb drives). Only supported by the Linux floppy driver.
dsktrans(1)
John Elliott <
[email protected]>.