extract-adf is a tool for recovering files from broken Amiga OFS filesystem images. It can reconstruct directory hierarchies even for files that don’t have directory entries.
https://github.com/mist64/extract-adf
I originally developed extract-adf to reconstruct the leftovers on the Amiga Kickstart 1.0 disk. Sigurbjörn B. Lárusson has made it into a general-purpose tool with the following features:
- support for ADF, ADZ and DMS image files
- support for DD and HD disks
- reconstruction of directory hierarchies
- recreation of time stamps
- lots of optional debug output
Just passing a disk image file as an argument will write all files and directories to the local filesystem:
$ extract-adf "Amiga Workbench 1.0 (31.334) (Commodore) (1985) [m].adf"
Autodetected fileformat from extension is ADF
Startsector is 0
Endsector is 1760
extract-adf will create a directory matching the disk name with all the contents, and an “Orphaned” directory.
$ ls -l
total 0
drwxr-xr-x 2 mist staff 64 May 12 10:47 Orphaned
drwxr-xr-x 23 mist staff 736 Jan 31 2000 Workbench
$ ls -l Workbench/
total 152
drwxr-xr-x 9 mist staff 288 Jan 31 2000 Demos
-rw-r--r-- 1 mist staff 346 Sep 11 1985 Demos.info
-rw-r--r-- 1 mist staff 306 Sep 11 1985 Disk.info
[...]
$ ls -l Orphaned/
[empty]
The “Orphaned” directory contains all files that are not referenced by directory entries. In this case, it will be empty.
Here is how to recover the contents of the Kickstart 1.0 disk:
$ extract-adf -s 512 "Amiga Kickstart 1.0 (NTSC) (A1000) (Commodore) (1985) (disk).adf"
Autodetected fileformat from extension is ADF
Startsector is 512
Endsector is 1760
“This program does not support FFS floppies(!), it only supports OFS style Amiga Floppies”
that’s a shame… most disk images these days would be FFS. Using something like this to list their content would be practical for indexing one’s collection.
Maybe I’m slow, but the link to Sigurbjörn B. Lárusson seems to have nothing there related to the program, and no search function. I look on his “github” page and likewise found nothing. Can somebody post a link to it.
Would be great if if it supported FFS, AFS and PFS. But I would settle for FFS.