[Bug 1535234] Re: chown fails on root-owned files with "rw-build-tree"

[Launchpad Bug Tracker]

This bug was fixed in the package autopkgtest - 3.19.2

---------------
autopkgtest (3.19.2) unstable; urgency=medium

  * Fix "apt-get source" version detection:
    - Ignore source record "Binary:" entries which are not actually binaries
      of that source.
    - Take the highest source version of all encountered binaries. In other
      words, as soon as apt pinning uses one package from -proposed, use the
      tests from -proposed too.
    - Only consider binaries which exist in all releases. This avoids newly
      introduced binaries (library transitions, new kernel versions) to skew
      the intended apt pinning as they would always win the "highest version"
      check from above.
  * Install /usr/share/autopkgtest/setup-commands/* scripts as executable, to
    make them work for vmdebootstrap --customize. (Closes: #810862)
  * ssh-setup/nova: Use extended RE for matching --image pattern.
  * setup-commands/setup-testbed: Fix handling of options in sources.list.
  * tools/adt-build-lxd: Fix parsing of release name from apt sources with
    options if lsb_release is not available.
  * setup-commands/setup-testbed: Regenerate initramfs when adding udev rule
    for disabling ifnames (for chroots).
  * adt-buildvm-ubuntu-cloud: Drop duplicate sed of cloud-init.prerm.
  * adt-buildvm-ubuntu-cloud: Don't try to run "None" if --post-command is not
    given.
  * adt-virt-lxc: Add timeouts to all LXC operations.
  * Fix chowning for "rw-build-tree" restriction: run it as root if available,
    and otherwise ignore it entirely. (LP: #1535234)
  * Drop apt-cache showsrc --only-source option, as this is not yet understood
    by Ubuntu 12.04's apt.
  * VirtSubproc.py, execute_timeout(): Avoid UnicodeDecodeErrors when called
    programs send gibberish. Decode manually with "replace" error mode
    instead. (LP: #1535741)
  * adt-virt-lxc: Avoid unnecessary reading and decoding of program outputs if
    we don't actually use it.
  * ssh-setup/nova: Use the image with the latest "created" time, instead of
    the last lexicographic name.

 -- Martin Pitt <mpitt at debian.org>  Thu, 21 Jan 2016 13:30:40 +0100

** Changed in: autopkgtest (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1535234

Title:
  chown fails on root-owned files with "rw-build-tree"

Status in autopkgtest package in Ubuntu:
  Fix Released

Bug description:
  The ubuntu-make tests currently tmpfail on xenial due to this:

  adt-run [15:33:32]: test large: [-----------------------
  chown: changing ownership of ‘/tmp/adt-run.0gWOMN/build.oq7/ubuntu-make/tests/tools/__pycache__/local_server.cpython-34.pyc’:
  +Operation not permitted
  chown: changing ownership of ‘/tmp/adt-run.0gWOMN/build.oq7/ubuntu-make/tests/tools/__pycache__/__init__.cpython-34.pyc’:
  +Operation not permitted
  adt-run [15:33:32]: test large: -----------------------]
  sh: 1: cannot open /tmp/adt-run.0gWOMN/large-stdout: No such file
  Exit request sent.
  <VirtSubproc>: failure: copyup source failed, status 2
  adt-run [15:33:40]: ERROR: testbed failure: unexpected eof from the testbed

  This test has "Restrictions: rw-build-tree", but does not run as root,
  thus this code in run_tests() gets run:

          if self.user and 'rw-build-tree' in test.restrictions:
              script += 'chown -R %s "$buildtree"; ' % self.user

  this is bogus as chown as user will fail on any file which is not
  already owned by that user. Thus the test wrapper shell script fails
  before it even gets to starting "tee" for -stdout/-stderr and it fails
  in the above manner.

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