[Bug 1874834] Re: Xenial builds with core18-based snaps pre-seed core snap instead

[Launchpad Bug Tracker]

This bug was fixed in the package livecd-rootfs - 2.408.59

---------------
livecd-rootfs (2.408.59) xenial; urgency=medium

  * Backport snap preseed base support (LP: #1874834)

 -- Robert C Jennings <robert.jennings at canonical.com>  Fri, 24 Apr 2020
10:54:54 -0500

** Changed in: livecd-rootfs (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1874834

Title:
  Xenial builds with core18-based snaps pre-seed core snap instead

Status in livecd-rootfs package in Ubuntu:
  Fix Released
Status in livecd-rootfs source package in Xenial:
  Fix Released

Bug description:
  [Impact]

   * A xenial image that preseeds a snap based on core18 will
     end up with core instead and preseeding on boot will fail.

  
  [Test Case]

   * Add a binary hook that pre-seeds lxd (which recently moved to a
     core18 base).  Ensure the snapd and core18 are pulled in by the
     build and core is not present.  Boot the image and ensure
     pre-seeding is successful.

  [Regression Potential]

   * Images with pre-seeded snaps regress in some fashion.  We will need
     to check these builds but there are no pre-seeded snaps in the
     livecd-rootfs tree for Xenial so this is a low risk change.

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