Attempting to upgrade from 21.10 to 22.04 LTS gives me errors:
sudo apt update && sudo apt dist-upgrade
Ign:1 http://gb.archive.ubuntu.com/ubuntu impish InRelease
Ign:2 http://gb.archive.ubuntu.com/ubuntu impish-updates InRelease
Ign:3 http://gb.archive.ubuntu.com/ubuntu impish-backports InRelease
Ign:4 http://gb.archive.ubuntu.com/ubuntu impish-security InRelease
Err:5 http://gb.archive.ubuntu.com/ubuntu impish Release
404 Not Found [IP: 185.125.190.36 80]
Err:6 http://gb.archive.ubuntu.com/ubuntu impish-updates Release
404 Not Found [IP: 185.125.190.36 80]
Hit:7 http://dl.google.com/linux/chrome/deb stable InRelease
Err:8 http://gb.archive.ubuntu.com/ubuntu impish-backports Release
404 Not Found [IP: 185.125.190.36 80]
Hit:9 http://archive.canonical.com/ubuntu impish InRelease
Err:10 http://gb.archive.ubuntu.com/ubuntu impish-security Release
404 Not Found [IP: 185.125.190.36 80]
Get:11 https://download.docker.com/linux/ubuntu hirsute InRelease [48.9 kB]
Hit:12 https://apt.releases.hashicorp.com impish InRelease
Reading package lists... Done
E: The repository 'http://gb.archive.ubuntu.com/ubuntu impish Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://gb.archive.ubuntu.com/ubuntu impish-updates Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://gb.archive.ubuntu.com/ubuntu impish-backports Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://gb.archive.ubuntu.com/ubuntu impish-security Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
This did not help: Ubuntu 22.04 Upgrade from 21.10 error
Any suggestions?
