[linux-lvm] can't make snapshot

Joseph Graham t67t67t67 at gmail.com
Fri Sep 16 10:41:38 UTC 2011

lvcreate --size 100M --snapshot --name root_snap /dev/VolGroup00/root
-vvv 2> outfile


This seems to be the relevent error:

        Syncing device names
        Udev cookie 0xd4d33c5 (semid 19038208) decremented to 0
        Udev cookie 0xd4d33c5 (semid 19038208) waiting for zero
        Udev cookie 0xd4d33c5 (semid 19038208) destroyed
        VolGroup00-root_snap: Skipping NODE_ADD (254,14) 0:0 0600 [trust_udev]
        VolGroup00-root_snap: Processing NODE_READ_AHEAD 256 (flags=1)
  /dev/mapper/VolGroup00-root_snap: open failed: No such file or directory
    Clearing start of logical volume "root_snap"
      /dev/VolGroup00/root_snap: stat failed: No such file or directory
  /dev/VolGroup00/root_snap: not found: device not cleared
  Aborting. Failed to wipe snapshot exception store.

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