[Bug 1855930] Re: Build failures when specifying in focal: project=ubuntu-base and subproject=buildd

[Francis Ginther]

** Tags added: id-5deeb7eacd1f827494c13332

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Title:
  Build failures when specifying in focal: project=ubuntu-base and
  subproject=buildd

Status in livecd-rootfs package in Ubuntu:
  Fix Released

Bug description:
  I am unable to perform focal buildd image builds. DNS resolution is
  broken in the chroot when attempting to install packages:

  [...]
  The following NEW packages will be installed:
    policyrcd-script-zg2
  0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
  Need to get 5610 B of archives.
  After this operation, 18.4 kB of additional disk space will be used.
  Err:1 http://archive.ubuntu.com/ubuntu focal/main amd64 policyrcd-script-zg2 all 0.1-3
    Temporary failure resolving 'archive.ubuntu.com'
  E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/p/policyrcd-script-zg2/policyrcd-script-zg2_0.1-3_all.deb  Temporary failure resolving 'archive.ubuntu.com'
  E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
  E: config/hooks/49-policy-rc-d.binary failed (exit non-zero). You should check for errors.
  P: Begin unmounting filesystems...
  P: Saving caches...
  P: Begin unmounting filesystems...
  P: Saving caches...
  [...]

  This bug was introduced in this MP:

  https://code.launchpad.net/~davidkrauser/livecd-rootfs/+git/livecd-
  rootfs/+merge/373916

  To reproduce (using ubuntu-bartender from ubuntu-old-fashioned[1]):

  ubuntu-bartender -- --project ubuntu-base --subproject buildd --series
  focal

  See attached MP for a proposed fix.

  1: https://github.com/chrisglass/ubuntu-old-fashioned

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