Why there is a "EXT4-fs (dm-x): write access unavailable, skipping orphan cleanup" message,while mounting a read-only snapshot of a Logical Volume in Red Hat Enterprise Linux 6?

Solution Verified - Updated -

Issue

  • Following messages appear , when a snapshot created by lvcreate -L 1G -p r -s -n lv_name_snap vg_name/lv_name is mounted.
 kernel: EXT4-fs (dm-x): write access unavailable, skipping orphan cleanup 
 kernel: EXT4-fs (dm-x): recovery complete 
 kernel: EXT4-fs (dm-x): mounted filesystem with ordered data mode. Opts:

Environment

  • Red Hat Enterprise Linux (RHEL) 6
  • LVM
  • EXT4

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