Hi Mike, seems this kind of partition type got introduced by FDISK version 0.96 [1] in 1999. However, these were already removed by 1.0 RC2 [2], which got released in 2001. The exact reason is unclear to me. Maybe someone involved in the project at that time knows why the types were initially included and - in our terms shortly - removed again.
[1]: https://github.com/FDOS/fdisk/blob/a6e3622c959707f1950df8ca4fe94046274ee1a9/doc/fdisk/history.txt#L1032 [2]: https://github.com/FDOS/fdisk/blob/a6e3622c959707f1950df8ca4fe94046274ee1a9/doc/fdisk/history.txt#L288 Bernd > Am 07.07.2025 um 07:33 schrieb Michael Brutman via Freedos-devel > <freedos-devel@lists.sourceforge.net>: > > Over at the Wikipedia "List of partition IDs" I was surprised to find that > FreeDOS FDISK has partition types defined for hidden FAT and Extended > partitions that have different type numbers than the standard hidden versions > of those. For example, FreeDOS FDISK defines 0x8D as Hidden FAT12 and 0x90 > as Hidden FAT 16. Those are usually 0x11 and 0x14 in other tools. > > The source code says otherwise ... hiding or unhiding is valid for anything > less that 0x20, and it's just an XOR operation. > > Is the Wiki page wrong or out of date? What's the history here? > > > Mike > > _______________________________________________ > Freedos-devel mailing list > Freedos-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-devel _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
