[FAT filesystem] BeOS' FAT16 floppy is detected as FAT12 #709

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claunia · 2026-01-29T15:27:11Z

claunia commented

2026-01-29 15:27:11 +00:00

Originally created by @claunia on GitHub (Apr 28, 2021).

Prerequisites

Are you running the latest version?
Can you reproduce the problem in the debug version?

Check and fill as appropriate:

I was running Aaru under Linux 5.11.4-arch1-1...
...in 64-bit
...using an Intel / AMD processor

Description

Floppy formatted as FAT16 in BeOS is detected as FAT12.

Exact command line used:

Unit test

Expected behavior:

Detected as FAT16.

Actual behavior:

Detected as FAT12.

Output of command execution with debug output enabled

  String lengths are both 5. Strings differ at index 4.
  Expected: "FAT16"
  But was:  "FAT12"
  ---------------^

Media image:

beos_r4.5_mf2hd.img.lz

Originally created by @claunia on GitHub (Apr 28, 2021). ### Prerequisites * [x] Are you running the latest version? * [x] Can you reproduce the problem in the debug version? ### Check and fill as appropriate: * [x] I was running Aaru under Linux 5.11.4-arch1-1... * [x] ...in 64-bit * [x] ...using an Intel / AMD processor ### Description Floppy formatted as FAT16 in BeOS is detected as FAT12. ### Exact command line used: Unit test ### Expected behavior: Detected as FAT16. ### Actual behavior: Detected as FAT12. ### Output of command execution with debug output enabled ``` String lengths are both 5. Strings differ at index 4. Expected: "FAT16" But was: "FAT12" ---------------^ ``` ### Media image: beos_r4.5_mf2hd.img.lz

claunia added the bug filesystem labels 2026-01-29 15:27:11 +00:00

claunia closed this issue

2026-01-29 15:27:12 +00:00

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Reference: aaru-dps/Aaru-aaru-dps#709