upgrade to 18.04

[ermek6]

which package creates a problem when updating my home server

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.25
ProcVersionSignature: Ubuntu 4.4.0-138.164-generic 4.4.155
Uname: Linux 4.4.0-138-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CrashDB: ubuntu
Date: Wed Oct 24 14:27:11 2018
InstallationDate: Installed on 2017-01-15 (646 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2018-10-24 (0 days ago)
VarLogDistupgradeAptclonesystemstate.tar.gz:
 Error: command ['pkexec', 'cat', '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code 127: polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
 Error executing command as another user: Not authorized

 This incident has been reported.

[Sebastien Bacher (seb128)]

Thank you for your bug report, from what version did you try to update and using what tool?

The log has that error

  File "/tmp/ubuntu-release-upgrader-830bjhif/DistUpgrade/DistUpgradeViewText.py", line 51, in readline
    s = input()
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xd0 in position 0: invalid continuation byte

[ermek6 (ermek6)]

Thank you. Now I use Ubuntu Server 16.04

[ermek6 (ermek6)]

And I use `do-release-upgrade` tool without arguments