Ubuntu 22.04 Upgrade from 21.10 error

I tried to upgrade my ubuntu from 21.10 to 22.04 with

• sudo do-release-upgrade -c
• do-release-upgrade

but I always get an error

Hit jammy InRelease
Hit jammy-updates InRelease
Hit hirsute InRelease
Hit jammy-backports InRelease
Hit jammy-security InRelease
Ign impish InRelease
Err impish Release 404 Not Found [IP: 50.18.207.89 443]
Fetched 0 B in 0s (0 B/s)
Hit jammy InRelease
Hit jammy-updates InRelease
Hit jammy-backports InRelease
Hit hirsute InRelease
Hit jammy-security InRelease
Ign impish InRelease
Err impish Release 404 Not Found [IP: 184.72.30.82 443]
Fetched 0 B in 0s (0 B/s)
Hit jammy InRelease
Hit jammy-updates InRelease
Hit jammy-backports InRelease
Hit hirsute InRelease
Hit jammy-security InRelease
Ign impish InRelease
Err impish Release 404 Not Found [IP: 50.18.207.89 443]
Fetched 0 B in 0s (0 B/s)
Error during update
A problem occurred during the update. This is usually some sort of
network problem, please check your network connection and retry.
W:Updating from such a repository can't be done securely, and is
therefore disabled by default., W:See apt-secure(8) manpage for
repository creation and user configuration details., E:The repository
' impish Release'
does not have a Release file. 

I tried to remove speedtest-cli, remove snap of speedtest but nothing helped. Any idea what could I do?

2 Answers

You should comment out the unofficial repositories before upgrading. This can normally be done in 2 ways:

1. Commenting out the relevant line from /etc/apt/sources.list
2. Renaming the relevant files inside the directory /etc/apt/sources.list.d

When you have performed the upgrade, check your old repos/files, and update them accordingly to the latest version. After that you can uncomment and/or rename the files back to activate the repositories.

For solution 1:

Find the lines containing hirsute and impish and put a # in front of the line.

For solution 2:

Find the files inside /etc/apt/sources.list.d that contains the above repositories. Rename those files, so they don't end with a .list extension (for instance, rename them to filename.list.old).

First we'll find the file that's causing your errors...

cd /etc/apt

grep -i packagecloud.io sources.list

You may get no "hits" with the grep command if sources.list doesn't contain it. That's ok.

Then we look elsewhere...

cd sources.list.d

grep -i packagecloud.io *.list

This should provide you with the filename(s) that we're looking for.

Now we edit the found file(s) with...

sudo -H gedit found_filename.list

It should only contain one or two lines. Place a "#" (no quotes) at the front of each line, save the file.

Optional extra points:

grep -i deb.nodesource.com *.list

sudo -H gedit found_filename.list

Change hirsute to impish, save the file.

sudo apt update

Should run cleanly without the errors that you previously had.

If you wish to keep speedtest-cli, use this command, taken from here...

curl -s | sudo bash

Then install/reinstall speedtest-cli or speedtest if you wish.

Then you can do your upgrade.