Ubuntu
e2fsprogs package

  1. Bug #93921
  2. Comment #13

Comment 13 for bug 93921

Revision history for this message
Theodore Ts'o (tytso) wrote :

Oops, I'm confusing this with another bug report where a NTFS partition was getting misidentified as LUKS.

In this case, I suspect what happen is the user got very unlucky. Mke2fs always zaps the first 8k, *except* on sparc platforms (where the default is to use an inline partition table) and if it detects a BSD boot label. So if the LUKS encrypted superblock has 4 bytes that match the two possible values of the BSD boot label, mke2fs will skip zero'ing the boot sector.

I could remove that check, but on platforms that are dual-booting with BSD, this could run into problems.

In any case, I still think that moving the LUKS check makes sense in this case, since there's no way to improve the probing function, given the LUKS format.