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[Tim Pownall <pownalltim@xxxxxxxxx>]

Public bug reported:

We recently added a new feature with the nova api allow a user to
specify a rescue_image_ref and a password to the rescue mode action in
nova.  When specifying an alternative image we're not currently
utilizing the image vm_mode and image auto_disk_config flags and are
using the current instance flags.  For example, if you are to specify an
hvm image to rescue a pv vm, you'll end up with a pv vm built off a pv
image if you even get that far, as auto_disk_config will traceback first
depending on whether or not compute can resize the file system during
rescue mode due to auto_disk_config being turned on.

I have a potential fix for this issue and will be creating a code
review.

** Affects: nova
     Importance: Undecided
     Assignee: Tim Pownall (pownalltim)
         Status: In Progress

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

** Changed in: nova
     Assignee: (unassigned) => Tim Pownall (pownalltim)

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https://bugs.launchpad.net/bugs/1432913

Title:
  rescue imageref not pulling image metadata during rescue mode

Status in OpenStack Compute (Nova):
  In Progress

Bug description:
  We recently added a new feature with the nova api allow a user to
  specify a rescue_image_ref and a password to the rescue mode action in
  nova.  When specifying an alternative image we're not currently
  utilizing the image vm_mode and image auto_disk_config flags and are
  using the current instance flags.  For example, if you are to specify
  an hvm image to rescue a pv vm, you'll end up with a pv vm built off a
  pv image if you even get that far, as auto_disk_config will traceback
  first depending on whether or not compute can resize the file system
  during rescue mode due to auto_disk_config being turned on.

  I have a potential fix for this issue and will be creating a code
  review.

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