Cannot boot when root is in a clustered volume group on Red Hat Enterprise Linux

Solution Verified - Updated -

Issue

If the root volume group has been enabled for cluster locking the system will be unable to boot successfully.

Environment

  • Red Hat Enterprise Linux (RHEL), including:
    • Red Hat Enterprise Linux 5 (RHEL5)
    • Red Hat Enterprise Linux 6 (RHEL6)
  • Root device is an LVM volume, or a non-shared volume group is marked clustered but Clustered-LVM (CLVMD) is not in use.

    • The volume group has been marked "clustered" and cannot be activated without clvmd running, but clvmd is not used on this server:
    # lvm vgdisplay
      Skipping clustered volume group vgroot
    

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