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Bug#994042: marked as done (libc6: debconf text fallback failed to accept input, had to be killed leading to broken dist-upgrade)

Your message dated Fri, 01 Oct 2021 12:02:07 +0000
with message-id <E1mWHEt-0006YY-Ij@fasolo.debian.org>
and subject line Bug#994042: fixed in glibc 2.31-13+deb11u1
has caused the Debian Bug report #994042,
regarding libc6: debconf text fallback failed to accept input, had to be killed leading to broken dist-upgrade
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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immediately.)


-- 
994042: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=994042
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: libc6
Version: 2.31-13
Severity: normal
X-Debbugs-Cc: codehelp@debian.org

This is related to #984533 - in my case, there was no effect on the initramfs.

I am attaching the section of the apt log. (gzipped)
I am also attaching the dpkg -l output for the package list (after upgrade).

The apt log includes the details of the --purge autoremove operation I completed
after a reboot, so those packages were also installed on buster too.

This was an upgrade from buster to bullseye.
apt upgrade worked fine (first part of the log).

When dist-upgrade started, I got:

Preparing to unpack .../92-libc6_2.31-13_amd64.deb ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 78.)
debconf: falling back to frontend: Readline
Checking for services that may need to be restarted...
Checking init scripts...
Do you want to upgrade glibc now?

Running services and programs that are using NSS need to be restarted,
otherwise they might not be able to do lookup or authentication any more.
The installation process is able to restart some services (such as ssh or
telnetd), but other programs cannot be restarted automatically.  One such
program that needs manual stopping and restart after the glibc upgrade by
yourself is xdm - because automatic restart might disconnect your active
X11 sessions.

This script detected the following installed services which must be
stopped before the upgrade: postgresql 

If you want to interrupt the upgrade now and continue later, please
answer No to the question below.

Do you want to upgrade glibc now? [Y/n] y
Y






Progress: [  5%] [########................................................................................................................................................................] 




sudo kill ....

dpkg: error processing archive /tmp/apt-dpkg-install-WwQ9fY/92-libc6_2.31-13_amd64.deb (--unpack):
 new libc6:amd64 package pre-installation script subprocess was killed by signal (Terminated)
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 78.)
debconf: falling back to frontend: Readline
Errors were encountered while processing:
 /tmp/apt-dpkg-install-WwQ9fY/92-libc6_2.31-13_amd64.deb
Error: Timeout was reached
E: Sub-process /usr/bin/dpkg returned an error code (1)
W: Operation was interrupted before it could finish


No matter what I typed to the Do you want to upgrade prompt, the process did not continue.
I needed to open a terminal tab, find the preinst process & kill it.

When I did restart, X died and I had to complete the dist-upgrade from Alt-F1 console.

I have now got a working system again.


-- System Information:
Debian Release: 11.0
  APT prefers stable-security
  APT policy: (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-8-amd64 (SMP w/4 CPU threads)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libc6 depends on:
ii  libcrypt1  1:4.4.18-4
ii  libgcc-s1  10.2.1-6

Versions of packages libc6 recommends:
ii  libidn2-0       2.3.0-5
pn  libnss-nis      <none>
pn  libnss-nisplus  <none>

Versions of packages libc6 suggests:
ii  debconf [debconf-2.0]  1.5.77
pn  glibc-doc              <none>
ii  libc-l10n              2.31-13
ii  locales                2.31-13

-- debconf information:
  glibc/kernel-not-supported:
  glibc/disable-screensaver:
  glibc/restart-services:
* libraries/restart-without-asking: true
  glibc/restart-failed:
  glibc/kernel-too-old:
  glibc/upgrade: true

Attachment: apt-failed.txt.gz
Description: application/gzip

Attachment: dpkg-list.txt.gz
Description: application/gzip


--- End Message ---
--- Begin Message --- 
Source: glibc
Source-Version: 2.31-13+deb11u1
Done: Aurelien Jarno <aurel32@debian.org>

We believe that the bug you reported is fixed in the latest version of
glibc, 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 994042@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Aurelien Jarno <aurel32@debian.org> (supplier of updated glibc 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)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Thu, 30 Sep 2021 22:47:49 +0200
Source: glibc
Architecture: source
Version: 2.31-13+deb11u1
Distribution: bullseye
Urgency: medium
Maintainer: GNU Libc Maintainers <debian-glibc@lists.debian.org>
Changed-By: Aurelien Jarno <aurel32@debian.org>
Closes: 990069 994042
Changes:
 glibc (2.31-13+deb11u1) bullseye; urgency=medium
 .
   [ Aurelien Jarno ]
   * debian/script.in/nsscheck.sh: restart openssh-server even if it has been
     deconfigured during the upgrade.  Closes: #990069.
   * debian/debhelper.in/libc.preinst: fix text fallback when debconf is
     unusable, the current debconf configuration should be queried without
     first sourcing the confmodule to avoid losing control of the tty. Big
     thanks to Colin Watson for the help diagnosing the issue and for providing
     an easy reproducer.  Closes: #994042.
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 ea695731aa16c723d6d873a5e5104036fd787886 911796 glibc_2.31-13+deb11u1.debian.tar.xz
 d747aae74973b1e28a6053f30ca6af3533ef25c2 8674 glibc_2.31-13+deb11u1_source.buildinfo
Checksums-Sha256:
 6cc9d5ff699d6c58f02999aa79c1ab3a2bc91c05ad6f158bc406afbf970fbca1 8347 glibc_2.31-13+deb11u1.dsc
 83fb709e78a1793c229e442cac5dc3b2dbf5f109ea7fa240bbacd965f1a966e1 911796 glibc_2.31-13+deb11u1.debian.tar.xz
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 386bd1514374e6f586c34d3a227df136 911796 libs required glibc_2.31-13+deb11u1.debian.tar.xz
 8b81656c9148c9b0b037da8ace23ec87 8674 libs required glibc_2.31-13+deb11u1_source.buildinfo

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--- End Message ---
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