FS Repair a Corrupted Filesystem

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AIX

Linux

Repairing a Corrupted Superblock

  1. Locate the superblock alternates of the filesystem
    # dump2fs /dev/<device> | grep -i superblock
  2. Choose a superblock alternate location, and check the filesystem using fsck
    # e2fsck -b <alternate location> /dev/<device>
  3. Attempt to mount the filesystem

Mounting a Filesystem with a Corrupted Superblock

  1. Locate the superblock alternates of the filesystem
    # dump2fs /dev/<device> | grep -i superblock
  2. The filesystem can also be mounted by passing the location of an alternate superblock to the mount command
    # mount sb=<alternate location> /dev/<device> <mount location>

Further Reading

  1. Recover Corrupted Partition From a Bad Superblock