[Bug 2052295] [NEW] autopkgtest unshare-qemuwrapper failing on amd64

[Miriam España Acebal]

Public bug reported:

While looking Noble openssh transition, I saw this test failing and
marking amd64 as regression.

Log :
https://objectstorage.prodstack5.canonical.com/swift/v1/AUTH_0f9aae918d5b4744bf7b827671c86842/autopkgtest-
noble/noble/amd64/s/sbuild/20240201_000224_2a4c6@/log.gz

Relevant part of the log:

1565s Chrooting into /tmp/mmdebstrap.bsT6cbiWIs/
1565s Setting up cpio (2.15+dfsg-1) ...
1565s update-alternatives: error: alternative path /bin/mt-gnu doesn't exist
1565s dpkg: error processing package cpio (--configure):
1565s  installed cpio package post-installation script subprocess returned error exit status 2


It can be reproduced locally, too.

The most recent test working is from 01/08/2024:
https://autopkgtest.ubuntu.com/results/autopkgtest-noble/noble/amd64/s/sbuild/20240108_203545_af566@/log.gz

The cpio version in the immediately log above is lower. The same
(working) part is:

2188s Chrooting into /tmp/mmdebstrap.qSEp1fU8f3/
2188s Setting up cpio (2.14+dfsg-1) ...
2188s update-alternatives: using /bin/mt-gnu to provide /bin/mt (mt) in auto mode

cpio diff :
https://launchpadlibrarian.net/709448424/cpio_2.14+dfsg-1_2.15+dfsg-1.diff.gz

** Affects: cpio (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: sbuild (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: cpio (Ubuntu Noble)
     Importance: Undecided
         Status: New

** Affects: sbuild (Ubuntu Noble)
     Importance: Undecided
         Status: New

** Also affects: sbuild (Ubuntu Noble)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2052295

Title:
  autopkgtest unshare-qemuwrapper failing on amd64

Status in cpio package in Ubuntu:
  New
Status in sbuild package in Ubuntu:
  New
Status in cpio source package in Noble:
  New
Status in sbuild source package in Noble:
  New

Bug description:
  While looking Noble openssh transition, I saw this test failing and
  marking amd64 as regression.

  Log :
  https://objectstorage.prodstack5.canonical.com/swift/v1/AUTH_0f9aae918d5b4744bf7b827671c86842/autopkgtest-
  noble/noble/amd64/s/sbuild/20240201_000224_2a4c6@/log.gz

  Relevant part of the log:

  1565s Chrooting into /tmp/mmdebstrap.bsT6cbiWIs/
  1565s Setting up cpio (2.15+dfsg-1) ...
  1565s update-alternatives: error: alternative path /bin/mt-gnu doesn't exist
  1565s dpkg: error processing package cpio (--configure):
  1565s  installed cpio package post-installation script subprocess returned error exit status 2

  
  It can be reproduced locally, too.

  The most recent test working is from 01/08/2024:
  https://autopkgtest.ubuntu.com/results/autopkgtest-noble/noble/amd64/s/sbuild/20240108_203545_af566@/log.gz

  The cpio version in the immediately log above is lower. The same
  (working) part is:

  2188s Chrooting into /tmp/mmdebstrap.qSEp1fU8f3/
  2188s Setting up cpio (2.14+dfsg-1) ...
  2188s update-alternatives: using /bin/mt-gnu to provide /bin/mt (mt) in auto mode

  cpio diff :
  https://launchpadlibrarian.net/709448424/cpio_2.14+dfsg-1_2.15+dfsg-1.diff.gz

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