autopkgtest schroot fails with network access

[Shengjing Zhu]

on armhf, the schroot test was skipped previously, because it fails to create the tarball.

222s autopkgtest [16:35:34]: test schroot: [-----------------------
224s mknod: /var/lib/schroot/unpack/tmp.b5GEblfCFW/test-dev-null: Operation not permitted
224s E: Cannot install into target '/var/lib/schroot/unpack/tmp.b5GEblfCFW' mounted with noexec or nodev
224s E: Error running debootstrap at /usr/bin/sbuild-createchroot line 438.
224s SKIP: Unable to create chroot testing-armhf-sbuild
224s autopkgtest [16:35:36]: test schroot: -----------------------]
227s schroot SKIP exit status 77 and marked as skippable

https://autopkgtest.ubuntu.com/results/autopkgtest-noble/noble/armhf/a/autopkgtest/20240117_163550_48058@/log.gz

now, with debootstrap/1.0.134ubuntu1, it can create tarball, so the test continues.

385s autopkgtest [09:09:35]: test schroot: [-----------------------

685s I: Base system installed successfully.
...
688s I: Please add any additional APT sources to /var/lib/schroot/unpack/tmp.oMtNMr6H6p/etc/apt/sources.list
688s I: schroot chroot configuration written to /etc/schroot/chroot.d/testing-armhf-sbuild-kd1HCC.
688s I: Please rename and modify this file as required.
688s mkdir /etc/sbuild/chroot

However the tests fail to recognize the http proxy, so it fails with

757s Err:1 http://deb.debian.org/debian testing InRelease
757s Cannot initiate the connection to deb.debian.org:80 (2a04:4e42:82::644). - connect (101: Network is unreachable) Could not connect to deb.debian.org:80 (146.75.74.132), connection timed out

https://autopkgtest.ubuntu.com/results/autopkgtest-noble/noble/armhf/a/autopkgtest/20240117_113326_23e69@/log.gz

[Shengjing Zhu (zhsj)]

Currently the failure in autopkgtest prevents debootstrap migration. But this is not debootstrap fault. So can we ignore the failure and force debootstrap to migrate?

[Shengjing Zhu (zhsj)]

Skia told me the autopkgtest itself is already fixed in upstream https://salsa.debian.org/ci-team/autopkgtest/-/merge_requests/268

[Graham Inggs (ginggs)]

After checking with qa-team that it was OK to allow autopkgtest's autopkgtest to regress on armhf, I added a hint:

https://git.launchpad.net/~ubuntu-release/britney/+git/hints-ubuntu/commit/?id=654bab8e4234ab5b3d04c7c00049a243d97a55d1

[Launchpad Janitor (janitor)]

This bug was fixed in the package autopkgtest - 5.32ubuntu1

---------------
autopkgtest (5.32ubuntu1) noble; urgency=medium

  * Merge with Debian unstable (LP: #2049737)
    Remaining changes:
    - Add support for cross-architecture testing.

autopkgtest (5.32) unstable; urgency=medium

  [ Florent 'Skia' Jacquet ]
  * d/t/schroot: better use of existing variables
  * d/t/schroot: allow running behind a proxy

  [ Simon McVittie ]
  * testarchive: Fix a pycodestyle warning
  * Standards-Version: 4.6.2 (no changes required)
  * qemu: Use 4M OVMF images if available

  [ Stefano Rivera ]
  * Testbed: Kill with SIGKILL if SIGTERM doesn't do the job in 10 seconds
    (Closes: #1059444)

  [ Paul Gevers ]
  * tests: increase sleep in test_timeout() for lxd test (Closes: #1020634)
  * autopkgtest-virt-qemu: raise time for command prompt return
  * virt-qemu: add context to several timeout errors

  [ Michael Biebl ]
  * Bump default ram-size for virt-qemu to 2048 (Closes: #1059840)

  [ Colin Watson ]
  * Add Incus support

  [ Santiago Ruano Rincón ]
  * Make autopkgtest-build-qemu pass mirror info to setup-testbed
    (Closes: #1060426)

  [ Paul Gevers ]
  * tests: increase --timeout-build to accommodate for riscv64
  * tests: mark podman-init autopkgtest flaky for now

autopkgtest (5.31.2) unstable; urgency=medium

  [ Florent 'Skia' Jacquet ]
  * d/control: add genisoimage as suggested package.
    It's used in `autopkgtest-buildvm-ubuntu-cloud`.

  [ Paul Gevers ]
  * autopkgtest-build-qemu: drop use of qemu-debootstrap.
    This is not needed in Debian 11 or newer. (Closes: #1038826)

  [ Simon McVittie ]
  * d/rules: Don't fail the build if a lint check fails (Closes: #1058550)
  * qemu, testdesc: Convert "# type:" comments into variable annotations.
    This avoids unused import warnings with current versions of pyflakes.

autopkgtest (5.31.1) unstable; urgency=medium

  * runner: fix architecture wildcard support broken in 30d5aa7
  * runner: fail badpkg in case no source was found like before 30d5aa7

autopkgtest (5.31) unstable; urgency=medium

  [ Johannes Schauer Marin Rodrigues ]
  * lib/autopkgtest_qemu.py: use -machine type=virt,gic-version=max when
    running natively on arm64 for kvm acceleration

  [ Tim Andersson ]
  * add ssh connect timeout to ssh-setup/nova
  * setup-testbed: Set apt error mode as any

  [ Paul Gevers ]
  * adt_testbed: factor out add-apt-sources
  * adt_testbed: factor out get-default-release
  * adt_testbed: factor out shell code to create sources.lists
  * Rewrite of source version selection in Python
  * create-sources.list-for-pocket: minor logical improvements
  * add-apt-sources: some checks of input arguments

  [ Jochen Sprickerhof ]
  * Update resolv.conf in unshare chroot

  [ Samuel Thibault ]
  * Fix hyphens in manpages

  [ Mateus Rodrigues de Morais ]
  * Add --cpus to buildvm-ubuntu-cloud tool

  [ Christian Kastner ]
  * qemu: Add option to poweroff gracefully

autopkgtest (5.30) unstable; urgency=medium

  [ Christian Kastner ]
  * Set umask while initializing DebBinaries, fixing permissions errors
    when running virt-podman with a restrictive umask (Closes: #1032487)

  [ Helmut Groh...

[Łukasz Zemczak (sil2100)]

Please provide an clear Test Case and describe the possible Regression Potential for this bug in the bug description [1].

[1] https://wiki.ubuntu.com/StableReleaseUpdates#SRU_Bug_Template