How to Recover Corrupted Superblock (Bad magic number in superblock) on Oracle VM Repository or Poolfs
(Doc ID 2127003.1)
Last updated on JULY 12, 2019
Applies to:Oracle VM - Version 3.0.1 and later
Oracle Cloud Infrastructure - Version N/A and later
Oracle VM Repository or Poolfs get super block corruption, and fsck.ocfs2 report failure as below:
# fsck.ocfs2 -fy /dev/mapper/<repo-uuid>
fsck.ocfs2: Bad magic number in superblock while opening "/dev/mapper/<repo-uuid>"
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