FS Repair a Corrupted Filesystem: Difference between revisions

From UNIX Systems Administration
Jump to navigation Jump to search
No edit summary
No edit summary
Line 4: Line 4:
## <tt>'''# dump2fs /dev/<device> | grep -i superblock'''</tt>
## <tt>'''# dump2fs /dev/<device> | grep -i superblock'''</tt>
# Choose a superblock alternate location, and check the filesystem using <tt>'''fsck'''</tt>.
# Choose a superblock alternate location, and check the filesystem using <tt>'''fsck'''</tt>.
## <tt>'''# fsck -b <alternate location> /dev/<device>'''</tt>
## <tt>'''# e2fsck -b <alternate location> /dev/<device>'''</tt>
# Attempt to mount the filesystem.
# Attempt to mount the filesystem.
=== Mounting a FS with a Corrupted Superblock ===
=== Mounting a FS with a Corrupted Superblock ===

Revision as of 13:47, 1 August 2014

Linux

Repairing a Corrupted Superblock

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

Mounting a FS with a Corrupted Superblock

  1. Locate the superblock alternates of the filesystem.
    1. # 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.
    1. # mount sb=<alternate location> /dev/<device> <mount location>

Further Reading

  1. Recover Corrupted Partition From a Bad Superblock