upgrade to 20.04 fails with can't install ubuntu-mate-core message

[Nick Bunyan]

I have been trying to update for 3 or 4 days, have removed all the launchpad repositories, purged everything I can think of anb the upgrade just fails...

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.37
ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
CrashDB: ubuntu
Date: Wed Jul 22 17:09:16 2020
InstallationDate: Installed on 2019-07-17 (370 days ago)
InstallationMedia: Ubuntu-MATE 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-07-22 (0 days ago)
VarLogDistupgradeTermlog:

[Brian Murray (brian-murray)]

It seems that none of the known meta packages are installed on your system. Please try installing ubuntu-mate-desktop and then upgrade to the next release of Ubuntu. From VarLogDistUpgradeMainlog.txt:

2020-07-22 17:08:12,646 DEBUG none of the '['ubuntu-desktop', 'kubuntu-desktop', 'xubuntu-core', 'xubuntu-desktop', 'ubuntustudio-desktop ', 'mythbuntu-desktop', 'kubuntu-netbook', 'lubuntu-desktop', 'ubuntu-gnome-desktop', 'ubuntu-mate-core', 'ubuntu-mate-desktop', 'ubuntuk ylin-desktop', 'ubuntu-budgie-desktop']' meta-pkgs installed

[Nick Bunyan (nick-bunyan)]

You will see from the below that ubuntu-mate-core is already
installed, ubuntu-mate-desktop can't be found, and attempting to do a
reinstall of ubuntu-mate-core gives an error. Is there any more I can
do please?

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[Xi:root@17:17 /]# apt-get install ubuntu-mate-desktop
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package ubuntu-mate-desktop
[Xi:root@11:28 /]# apt-get install ubuntu-mate-core
Reading package lists... Done
Building dependency tree
Reading state information... Done
ubuntu-mate-core is already the newest version (1.225).
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
[Xi:root@11:28 /]# apt-get install ubuntu-mate-desktop
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package ubuntu-mate-desktop
[Xi:root@11:28 /]# apt-get install --reinstall ubuntu-mate-core
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reinstallation of ubuntu-mate-core is not possible, it cannot be downloaded.
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
[Xi:root@11:29 /]#
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

On 22/07/2020, Brian Murray <email address hidden> wrote:
> It seems that none of the known meta packages are installed on your
> system. Please try installing ubuntu-mate-desktop and then upgrade to
> the next release of Ubuntu. From VarLogDistUpgradeMainlog.txt:
>
> 2020-07-22 17:08:12,646 DEBUG none of the '['ubuntu-desktop', 'kubuntu-
> desktop', 'xubuntu-core', 'xubuntu-desktop', 'ubuntustudio-desktop ',
> 'mythbuntu-desktop', 'kubuntu-netbook', 'lubuntu-desktop', 'ubuntu-
> gnome-desktop', 'ubuntu-mate-core', 'ubuntu-mate-desktop', 'ubuntuk
> ylin-desktop', 'ubuntu-budgie-desktop']' meta-pkgs installed
>
>
> ** Changed in: ubuntu-release-upgrader (Ubuntu)
> Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1888535
>
> Title:
> upgrade to 20.04 fails with can't install ubuntu-mate-core message
>
> Status in ubuntu-release-upgrader package in Ubuntu:
> Incomplete
>
> Bug description:
> I have been trying to update for 3 or 4 days, have removed all the
> launchpad repositories, purged everything I can think of anb the
> upgrade just fails...
>
> ProblemType: Bug
> DistroRelease: Ubuntu 18.04
> Package: ubuntu-release-upgrader-core 1:18.04.37
> ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
> Uname: Linux 5.4.0-42-generic x86_64
> ApportVersion: 2.20.9-0ubuntu7.15
> Architecture: amd64
> CrashDB: ubuntu
> Date: Wed Jul 22 17:09:16 2020
> InstallationDate: Installed on 2019-07-17 (370 days ago)
> InstallationMedia: Ubuntu-MATE 18.04.2 LTS "Bionic Beaver" - Release amd64
> (20190210)
> PackageArchitecture: all
> ProcEnviron:
> LANGUAGE=en_GB:en
> TERM=xterm
> PATH=(custom, no user)
> LANG=en_GB.UTF-8
> SHELL=/bin/bash
> SourcePackage: ubuntu-release-upgrader
> UpgradeStatus: Upgraded to bioni...

[Brian Murray (brian-murray)]

Ah, you also have the universe repository of the Ubuntu archive disabled and that is where ubuntu-mate-desktop comes from. You'll need to enable universe and install ubuntu-mate-desktop and try the upgrade again.

[Launchpad Janitor (janitor)]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no activity for 60 days.]