I have done a fresh install of 21.10 a while ago and today I wanted to upgrade to 22.04.
However, I have installed Chromium via the Mint repository since it's no longer in the Ubuntu repo. After that my system info was telling me I was running Mint 20.3 which I'm not.
lsb_release -a says:
No LSB modules are available.
Distributor ID: Linuxmint
Description: Linux Mint 20.3
Release: 20.3
Codename: una
The output from cat /etc/*-release is showing me:
DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=20.3
DISTRIB_CODENAME=una
DISTRIB_DESCRIPTION="Linux Mint 20.3 Una"
NAME="Linux Mint"
VERSION="20.3 (Una)"
ID=linuxmint
ID_LIKE=ubuntu
PRETTY_NAME="Linux Mint 20.3"
VERSION_ID="20.3"
HOME_URL="https://www.linuxmint.com/"
SUPPORT_URL="https://forums.linuxmint.com/"
BUG_REPORT_URL="http://linuxmint-troubleshooting-guide.readthedocs.io/en/latest/"
PRIVACY_POLICY_URL="https://www.linuxmint.com/"
VERSION_CODENAME=una
UBUNTU_CODENAME=focal
The output from apt-cache policy base-files is:
base-files:
Installiert: 20.3.0
Installationskandidat: 20.3.0
Versionstabelle:
*** 20.3.0 100
-1 http://packages.linuxmint.com una/upstream amd64 Packages
100 /var/lib/dpkg/status
11.1ubuntu5 500
500 http://gb.archive.ubuntu.com/ubuntu impish/main amd64 Packages
grep -Ev '(^#|^ $|deb-src)' /etc/apt/sources.list /etc/apt/sources.list.d/ | nl is giving me:
1 /etc/apt/sources.list:deb http://gb.archive.ubuntu.com/ubuntu/ impish main restricted
2 /etc/apt/sources.list:deb http://gb.archive.ubuntu.com/ubuntu/ impish-updates main restricted
3 /etc/apt/sources.list:deb http://gb.archive.ubuntu.com/ubuntu/ impish universe
4 /etc/apt/sources.list:deb http://gb.archive.ubuntu.com/ubuntu/ impish-updates universe
5 /etc/apt/sources.list:deb http://gb.archive.ubuntu.com/ubuntu/ impish multiverse
6 /etc/apt/sources.list:deb http://gb.archive.ubuntu.com/ubuntu/ impish-updates multiverse
7 /etc/apt/sources.list:deb http://gb.archive.ubuntu.com/ubuntu/ impish-backports main restricted universe multiverse
8 /etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu impish-security main restricted
9 /etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu impish-security universe
10 /etc/apt/sources.list:deb http://security.ubuntu.com/ubuntu impish-security multiverse
11 /etc/apt/sources.list.d/gerardpuig-ubuntu-ppa-impish.list:deb http://ppa.launchpad.net/gerardpuig/ppa/ubuntu/ impish main
12 /etc/apt/sources.list.d/google-earth-pro.list:deb [arch=amd64] http://dl.google.com/linux/earth/deb/ stable main
13 /etc/apt/sources.list.d/insync.list:deb http://apt.insync.io/ubuntu impish non-free contrib
14 /etc/apt/sources.list.d/mint-una.list:deb http://packages.linuxmint.com una upstream
15 /etc/apt/sources.list.d/mono-official-stable.list:deb https://download.mono-project.com/repo/ubuntu stable-focal main
16 /etc/apt/sources.list.d/signal-xenial.list:deb [arch=amd64 signed-by=/usr/share/keyrings/signal-desktop-keyring.gpg] https://updates.signal.org/desktop/apt xenial main
cat /var/log/installer/media-info is telling me:
Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
Which is exactly what I have installed! So I'm running 21.10 but the Chromium installation "hijacked" my system and is telling me that I have Mint 20.3
When I was trying
sudo do-release-upgrade -d
it did not succeed with:
"Neue Veröffentlichungen von Ubuntu werden gesucht Aktualisierungen auf die Entwicklerversion sind nur von der jüngsten unterstützten Version aus möglich."
(Sorry for german system, I hope it's understandable what it's telling me. Basically: won't let you update Mint to Ubuntu)
I already tried purging Chromium with no success.
So what can I do to upgrade my system to 22.04 without doing a fresh reinstall? How can I "get rid" of the false system interpretation?
