[Bug 2069828] Re: Revert removal of unminimize call in server builds

[Philip Roche]

>From ubuntu-server daily live image build 20240628 @
https://cdimage.ubuntu.com/ubuntu-server/noble/daily-live/20240628/ with
amd64 build @ https://launchpad.net/~ubuntu-
cdimage/+livefs/ubuntu/noble/ubuntu-server-live/+build/642557 with these
changes and I can confirm:

* from the build log that 24.04.72 was used.
* from the log @ that `/usr/local/sbin/unminimize` is now being called in `01-unminimize.chroot_early` as expected.
* Build was successful
* Ubuntu Server (minimized) install of server resulted in the following test results https://pastebin.ubuntu.com/p/CF783fb7H9/
* Ubuntu Server install of server resulted in the following test results https://pastebin.ubuntu.com/p/ztwHFR2Ysf/
* LXD is not preseeded. 
* Layers/install targets are as expected with recommends packages only present in the non minimized install.

Marking verified.


** Tags removed: verification-needed-noble
** Tags added: verification-done-noble

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https://bugs.launchpad.net/bugs/2069828

Title:
  Revert removal of unminimize call in server builds

Status in livecd-rootfs package in Ubuntu:
  Fix Released
Status in livecd-rootfs source package in Noble:
  Fix Committed
Status in livecd-rootfs source package in Oracular:
  Fix Released

Bug description:
  There was a change made by me in
  https://code.launchpad.net/~philroche/livecd-rootfs/+git/livecd-
  rootfs/+merge/466388 as part of LP: #2066905 to remove references to
  LXD in the unminimize scripts but I also removed the calls to
  `unminimize` in error.

  This still needs to run but without any references to LXD which no
  longer needs to be `unminimized` via snap installation.

  [ Impact ]

  The server images no longer have a non minimized layer as it is never
  unminimized.

  [ Test Plan ]

   * Successfully build server daily image and ensure that the multiple
  layers are present.

  [ Where problems could occur ]

   * If the server image does not build, if LXD snap continues to be
  installed or if the unminimized layer is not as expected.

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