[Bug 1713175] Re: Obsolete backup ext2/3/4 superblocks can confuse e2fsck on an encrypted LUKS partition

[Theodore Ts'o]

** Summary changed:

- fsck should check before running on an encrypted LUKS partition
+ Obsolete backup ext2/3/4 superblocks can confuse e2fsck on an encrypted LUKS partition

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https://bugs.launchpad.net/bugs/1713175

Title:
  Obsolete backup ext2/3/4 superblocks can confuse e2fsck on an
  encrypted LUKS partition

Status in cryptsetup package in Ubuntu:
  Confirmed
Status in e2fsprogs package in Ubuntu:
  New
Status in util-linux package in Ubuntu:
  New

Bug description:
  fsck.ext4 runs on a LUKS partition and starts to correct inode
  entries, rendering the partition corrupted and useless. It seems like
  it should defensively check where it is an isLuks partition using
  "cryptsetup isLuks /dev/sda1" before continuing to modify it.

  I hope such a defensive check can be added.

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