Thanks for your bug report.
First of all, you're not using ubuntu-releaser, but apt.
Secondly, the lock message indicates something else is currently
upgrading/installing packages or working the the database (possibly
unattended-upgrades installing security updates), you have to wait for
those to finish (whatever you do, do NOT delete the lock file, that's a
common misconception about how locking works).
** Package changed: ubuntu-release-upgrader (Ubuntu) => apt (Ubuntu)
** Changed in: apt (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1789412
Title:
i can not upgrade to ubuntu 18
Status in apt package in Ubuntu:
Invalid
Bug description:
neampoima@3na:~$ apt-get upgrade
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.25
ProcVersionSignature: Ubuntu 4.4.0-134.160-generic 4.4.140
Uname: Linux 4.4.0-134-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: GNOME-Flashback:Unity
Date: Tue Aug 28 14:40:51 2018
InstallationDate: Installed on 2014-02-13 (1657 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64
(20131016.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2018-08-28 (0 days ago)
VarLogDistupgradeTermlog:
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