[Bug 2144516] Re: crashed when installing package

[Marcos Alano]

This is what I found. I added -x to the shebang to get the logs. It seems the second time that OLDVER is called, it's after already being set as readonly.
It makes sense, actually, since the function configure_debuginfod_ubuntu() is called inside the function configure_debuginfod(), so it still local.
The idea would be to change the var name or change the code so the function configure_debuginfod_ubuntu() won't be executed inside configure_debuginfod(), but at same level.

It also works if changing the shebang from /bin/sh to /bin/bash.


➜ sudo dpkg --configure -a
Setting up libdebuginfod-common (0.194-2)…
+ set -e
+ . /usr/share/debconf/confmodule
+ _DEBCONF_IMPL=
+ [  ]
+ [ -x /usr/share/debconf/frontend ]
+ [ ! -h /usr/share/debconf/frontend ]
+ _DEBCONF_IMPL=debconf
+ [ !  ]
+ [ debconf = cdebconf ]
+ export PERL_DL_NONLAZY=1
+ exec /usr/share/debconf/frontend /var/lib/dpkg/info/libdebuginfod-common.postinst configure
+ set -e
+ . /usr/share/debconf/confmodule
+ _DEBCONF_IMPL=
+ [  ]
+ [ -x /usr/share/debconf/frontend ]
+ [ ! -h /usr/share/debconf/frontend ]
+ _DEBCONF_IMPL=debconf
+ [ ! 1 ]
+ [ -z  ]
+ exec
+ [ debconf = cdebconf ]
+ exec
+ DEBCONF_REDIR=1
+ export DEBCONF_REDIR
+ DEBCONF_OLD_FD_BASE=4
+ export DEBCONF_OLD_FD_BASE
+ readonly CONFTEMPLATEPATH=/usr/share/libdebuginfod-common
+ configure_debuginfod
+ local OLDVER=
+ readonly OLDVER
+ grep -qFx ID=debian /etc/os-release
+ grep -qFx ID=ubuntu /etc/os-release
+ configure_debuginfod_ubuntu
+ local OLDVER=
/var/lib/dpkg/info/libdebuginfod-common.postinst: 32: local: OLDVER: is read only
dpkg: error processing package libdebuginfod-common (--configure):

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https://bugs.launchpad.net/bugs/2144516

Title:
  crashed when installing package

Status in elfutils package in Ubuntu:
  Confirmed

Bug description:
  Unpacking pandoc-data (3.7.0.2-1build1) over (3.7.0.2-1)…
  Setting up libdebuginfod-common (0.194-2)…
  /var/lib/dpkg/info/libdebuginfod-common.postinst: 32: local: OLDVER: is read only
  dpkg: error processing package libdebuginfod-common (--configure):
   old libdebuginfod-common package postinst maintainer script subprocess failed with exit status 2
  Setting up libelf1t64:amd64 (0.194-2)…
  Setting up libdw1t64:amd64 (0.194-2)…
  Setting up libasm1t64:amd64 (0.194-2)…
  Setting up pandoc-data (3.7.0.2-1build1)…
  dpkg: dependency problems prevent configuration of libdebuginfod1t64:amd64:
   libdebuginfod1t64:amd64 depends on libdebuginfod-common (>= 0.194-2); however:
    Package libdebuginfod-common is not configured yet.

  dpkg: error processing package libdebuginfod1t64:amd64 (--configure):
   dependency problems - leaving unconfigured
  Setting up bpftrace (0.25.0-1ubuntu1)…
  No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                            d
  pkg: dependency problems prevent configuration of elfutils:
   elfutils depends on libdebuginfod1t64 (>= 0.180); however:
    Package libdebuginfod1t64:amd64 is not configured yet.

  dpkg: error processing package elfutils (--configure):
   dependency problems - leaving unconfigured
  No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                            P
  rocessing triggers for man-db (2.13.1-1build1)…
  Processing triggers for libc-bin (2.43-2ubuntu1)…
  Errors were encountered while processing:
   libdebuginfod-common
   libdebuginfod1t64:amd64
   elfutils
  Error: Sub-process /usr/bin/dpkg returned an error code (1)

  ProblemType: Bug
  DistroRelease: Ubuntu 26.04
  Package: libdebuginfod1t64 0.194-2
  ProcVersionSignature: Ubuntu 7.0.0-7.7-generic 7.0.0-rc3
  Uname: Linux 7.0.0-7-generic x86_64
  NonfreeKernelModules: zfs nvidia_modeset nvidia
  ApportVersion: 2.33.1-0ubuntu4
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Mar 16 10:32:09 2026
  InstallationDate: Installed on 2025-06-04 (284 days ago)
  InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Daily amd64 (20250528)
  SourcePackage: elfutils
  UpgradeStatus: No upgrade log present (probably fresh install)

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