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

[Phillip Susi]

I have to disagree; the only tool that uses the backup superblock is
e2fsck, and if you accidentally run wipefs on the volume, you should be
able to recover it with e2fsck.

If you don't want to attempt to recover a filesystem there, then don't
run e2fsck.


** Changed in: util-linux (Ubuntu)
       Status: New => Invalid

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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:
  Invalid

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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