I compared an update of a 1510-amd64 only system - the one from above (ubuntu-mate-15.10-desktop-amd64.iso) with a the same system, added the libgcrypt20:i386 packages.
1.) There is hardly any de-configuring going in the "pure" amd64 system, only (plymouth and ifupdown). 2.) in the amd64 + libgcrypt20:i386 system: De-configuring plymouth (0.9.0-0ubuntu9) ... De-configuring ifupdown (0.7.54ubuntu1.3) .. . De-configuring libgcc1:i386 (1:5.2.1-22ubuntu2) ... De-configuring gcc-5-base:amd64 (5.2.1-22ubuntu2) ... De-configuring libc6:i386 (2.21-0ubuntu4.1) ... De-configuring libgpg-error0:amd64 (1.19-2) ... De-configuring libgcrypt20:i386 (1.6.3-2ubuntu1.1) ... Why is this deconfiguring happening? The deconfiguring is the the apparent reason for the upgrade failure. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1560797 Title: package systemd-sysv 225-1ubuntu9.1 failed to install/upgrade: libgcrypt20 was unconfigured during 15.10 to 16.04 upgrade Status in apt package in Ubuntu: Confirmed Status in systemd package in Ubuntu: Confirmed Bug description: Happened during upgrade to 16.04, don't know any more details. ProblemType: Package DistroRelease: Ubuntu 16.04 Package: systemd-sysv 225-1ubuntu9.1 Uname: Linux 4.4.5-040405-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Tue Mar 22 22:56:03 2016 ErrorMessage: pre-dependency problem - not installing systemd-sysv InstallationDate: Installed on 2013-04-24 (1064 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1) RelatedPackageVersions: dpkg 1.18.4ubuntu1 apt 1.2.7 SourcePackage: systemd Title: package systemd-sysv 225-1ubuntu9.1 failed to install/upgrade: pre-dependency problem - not installing systemd-sysv UpgradeStatus: Upgraded to xenial on 2016-03-23 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1560797/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
