Public bug reported: An unattended security upgrade (package dovecot-core) failed, interrupting mailbox service. The cause was ucf replacing a custom configuration file which had been diverted (using dpkg-divert) by a custom configuration package.
Excerpt from /var/log/apt/term.log: --- Setting up dovecot-core (1:2.2.33.2-1ubuntu4.6) ... Replacing config file /etc/dovecot/dovecot.conf.custom with new version ucfr: Attempt from package dovecot-core to take /etc/dovecot/dovecot.conf.custom away from package custom-mail-server ucfr: Aborting. dpkg: error processing package dovecot-core (--configure): installed dovecot-core package post-installation script subprocess returned error exit status 4 --- The underlying issue has been fixed upstream in ucf version 3.0040: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=477773 Affected versions: - Ubuntu 18.04.5 LTS - ucf 3.0038 - Ubuntu 20.04.1 LTS - ucf 3.0038+nmu1 ** Affects: ucf Importance: Unknown Status: Unknown ** Affects: dovecot (Ubuntu) Importance: Undecided Status: New ** Affects: ucf (Ubuntu) Importance: Undecided Status: New ** Bug watch added: Debian Bug tracker #477773 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=477773 ** Also affects: ucf via https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=477773 Importance: Unknown Status: Unknown ** Also affects: dovecot (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891515 Title: ucf overwrites diverted configuration file breaking unattended upgrades - upstream fix available To manage notifications about this bug go to: https://bugs.launchpad.net/ucf/+bug/1891515/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
