update from wily to xenial fails, lots of package installation errors

[Daniel Kessel]

I wanted to upgrade from wily to xenial. I used "update-manager -d -c".

During the upgrade, lots of package installation errors popped up. i could save the remainder of the terminal log from the update-manager application.

ubuntu-bug update-manager failed afterwards, so i oculd not add all the files....

Attaching the remainder of the log file.
---
ApportVersion: 2.20-0ubuntu2
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: XFCE
DistroRelease: Ubuntu 16.04
InstallationDate: Installed on 2015-02-05 (376 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150205)
Package: ubuntu-release-upgrader (not installed)
ProcVersionSignature: Ubuntu 4.4.0-4.19-generic 4.4.1
Tags: xenial dist-upgrade
Uname: Linux 4.4.0-4-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-02-12 (4 days ago)
UserGroups: adm autopilot cdrom dialout dip kvm libvirtd lpadmin plugdev sambashare sudo
VarLogDistupgradeTermlog:

_MarkForUpload: True

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1544954

[Brian Murray (brian-murray)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:

  apport-collect 1544954

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Daniel Kessel (dkessel)]

apport information

[Daniel Kessel (dkessel)]

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[Daniel Kessel (dkessel)]

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[Daniel Kessel (dkessel)]

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[Daniel Kessel (dkessel)]

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[Daniel Kessel (dkessel)]

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[Daniel Kessel (dkessel)]

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[Daniel Kessel (dkessel)]

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[Daniel Kessel (dkessel)]

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[Brian Murray (brian-murray)]

From Apttermlog.txt this is where things started to fail:

dpkg: dependency problems prevent configuration of systemd:
 systemd depends on libgcrypt20 (>= 1.6.1); however:
  Package libgcrypt20:amd64 is not configured yet.

dpkg: error processing package systemd (--configure):
 dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.21-0ubuntu5) ...
Errors were encountered while processing:
 systemd