UTF-8 problem in Python3. 0x08 ? package libfdisk1 2.27.1-3ubuntu1 failed to install/upgrade: 3.15575:kravproblem - setter ikke opp pakken

[Rune Sætre]

Upgrade from 14.04 crashes because of Python3?

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libfdisk1 2.27.1-3ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-77.121-generic 3.13.11-ckt32
Uname: Linux 3.13.0-77-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
Date: Sun Feb 21 11:50:21 2016
DuplicateSignature: package:libfdisk1:2.27.1-3ubuntu1:3.15575:kravproblem - setter ikke opp pakken
ErrorMessage: 3.15575:kravproblem - setter ikke opp pakken
InstallationDate: Installed on 2013-07-12 (953 days ago)
InstallationMedia: Ubuntu-Server 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130214)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1
 apt 1.0.1ubuntu2.10
SourcePackage: util-linux
Title: package libfdisk1 2.27.1-3ubuntu1 failed to install/upgrade: 3.15575:kravproblem - setter ikke opp pakken
UpgradeStatus: Upgraded to xenial on 2016-02-21 (0 days ago)

[Rune Sætre (satre)]

SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1)
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/problem_report.py", line 416, in add_to_existing
    self.write(f)
  File "/usr/lib/python3/dist-packages/problem_report.py", line 369, in write
    block = f.read(1048576)
  File "/usr/lib/python3.4/codecs.py", line 319, in decode
    (result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte

[Rune Sætre (satre)]

During
 do-release-upgrade -d