Debian Bug report logs - #999552
pcs: stores wrong paths to systemctl and rm if built on merged-/usr system

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Simon McVittie <smcv@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: pcs: stores wrong paths to systemctl and rm if built on merged-/usr system

Date: Fri, 12 Nov 2021 11:31:40 +0000

[Message part 1 (text/plain, inline)]

Source: pcs
Version: 0.10.11-1
Severity: important
Tags: bookworm sid
User: reproducible-builds@lists.alioth.debian.org
Usertags: usrmerge
X-Debbugs-Cc: reproducible-bugs@lists.alioth.debian.org

If pcs is built on a merged-/usr system (as created by new installations
of Debian >= 10, debootstrap --merged-usr, or installing the usrmerge
package into an existing installation), then the paths to systemctl and
rm are recorded in the binary package as being in /usr/bin, rather than
the canonical /bin.

This can be seen on the reproducible-builds.org infra:
https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/diffoscope-results/pcs.html

If you have sbuild available, an easy way to reproduce this is to build
twice, once with --add-depends=usrmerge and once without.

The problematic situation is if the package is *built* on a unified-/usr
system, but *used* on a non-unified-/usr system. In this situation,
/usr/bin/rm, etc. exist on the build system but not on the system
where the package will be used, resulting in the features that use these
executables not working correctly.

Technical Committee resolution #978636 mandates heading towards a
transition to merged-/usr, and this will become a non-issue at the end of
that transition; but variation between merged-/usr and non-merged-/usr
builds is a problem while that transition is taking place, because it
can lead to partial upgrades behaving incorrectly. It is likely that
this class of bugs will become release-critical later in the bookworm
development cycle.

The attached patch resolves this by specifying the paths that work for
both merged-/usr and non-merged-/usr.

A side benefit of fixing this is that this change seems likely to be
sufficient to make the package reproducible (as recommended by Policy
§4.15).

    smcv

[0001-d-rules-Specify-interoperable-path-for-systemctl-and.patch (text/x-diff, attachment)]

Message #12 received at 999552-close@bugs.debian.org (full text, mbox, reply):

From: Debian FTP Masters <ftpmaster@ftp-master.debian.org>

To: 999552-close@bugs.debian.org

Subject: Bug#999552: fixed in pcs 0.10.11-2

Date: Sat, 13 Nov 2021 21:36:55 +0000

Source: pcs
Source-Version: 0.10.11-2
Done: Valentin Vidic <vvidic@debian.org>

We believe that the bug you reported is fixed in the latest version of
pcs, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 999552@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Valentin Vidic <vvidic@debian.org> (supplier of updated pcs package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


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Hash: SHA512

Format: 1.8
Date: Sat, 13 Nov 2021 21:57:37 +0100
Source: pcs
Architecture: source
Version: 0.10.11-2
Distribution: unstable
Urgency: medium
Maintainer: Debian HA Maintainers <debian-ha-maintainers@lists.alioth.debian.org>
Changed-By: Valentin Vidic <vvidic@debian.org>
Closes: 999552
Changes:
 pcs (0.10.11-2) unstable; urgency=medium
 .
   [ Valentin Vidic ]
   * d/rules: fix unit tests failing under reprotest
   * d/rules: do not package deinstall.txt for python
 .
   [ Simon McVittie ]
   * d/rules: Specify interoperable path for systemctl and rm (Closes: #999552)
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