I am running Ubuntu 16.04 at work, and would like to upgrade to 18.04.
$ uname -a Linux superbock 4.15.0-34-generic #37~16.04.1-Ubuntu SMP Tue Aug 28 10:44:06 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
When I get the upgrade windows as follows:
I click on
Upgrade... but nothing happens.
I tried running the update manager on the command line using
When I click
Update..., it says on the console
Error checking for authorization com.ubuntu.release-upgrader.release-upgrade: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying
I also tried using the
$ sudo apt update $ sudo apt upgrade $ sudo apt dist-upgrade $ sudo apt-get autoremove $ sudo apt install update-manager-core $ sudo do-release-upgrade
And I get the following :
Checking for a new Ubuntu release Get:1 Upgrade tool signature [819 B] Get:2 Upgrade tool [1,258 kB] Fetched 1,259 kB in 0s (0 B/s) authenticate 'bionic.tar.gz' against 'bionic.tar.gz.gpg' gpg exited 1 Debug information: gpg: Signature made Wed 29 Aug 2018 19:33:13 BST using RSA key ID C0B21F32 gpg: /tmp/ubuntu-release-upgrader-ahhadl1h/trustdb.gpg: trustdb created gpg: BAD signature from "Ubuntu Archive Automatic Signing Key (2012) <firstname.lastname@example.org>" Authentication failed Authenticating the upgrade failed. There may be a problem with the network or with the server.
Not sure what is going on? Could someone advise on how to get this sorted?