Fsck drops to a maintenance shell at boot

Solution Verified - Updated -

Issue

  • During boot, the system hangs on fsck.
  • The machine begins the Checking Filesystems stage and stops with the following error:
/dev/mapper/U01: UNEXPECTED INCONSISTENCY:     [FAILED]

*** An error occured during the file system check.
*** Dropping you to a shell; the system will reboot
*** when you leave the shell.
Give root password for maintenance

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • ex3 or ext4 file systems

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