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[Matt Riedemann <mriedem@xxxxxxxxxx>]

** Also affects: nova/newton
   Importance: Undecided
       Status: New

** Changed in: nova/newton
       Status: New => In Progress

** Changed in: nova
   Importance: Undecided => Low

** Changed in: nova/newton
   Importance: Undecided => Low

** Changed in: nova/newton
     Assignee: (unassigned) => Lee Yarwood (lyarwood)

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https://bugs.launchpad.net/bugs/1648109

Title:
  Libvirt LVM storage backend doesn't initialise filesystems of
  ephemeral disks

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) newton series:
  In Progress

Bug description:
  N.B. This is from code inspection only.

  When creating an LVM-backed instance with an ephemeral disk, the
  ephemeral disk will not be initialised with the requested filesystem.
  This is because Image.cache() wraps the _create_ephemeral callback in
  fetch_func_sync, which will not call _create_ephemeral if the target
  already exists. Because the Lvm backend must create the disk first,
  this is never called.

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