Upgrading from 20.04.6 to 22.04 LTS

[reut2]

I tried to upgrade--see results below

reuven@reuven-OptiPlex-9020:~$ sudo do-release-upgrade
Checking for a new Ubuntu release
Please install all available updates for your release before upgrading.
reuven@reuven-OptiPlex-9020:~$ sudo apt-get update
Ign:1 cdrom://Xubuntu 20.04.1 LTS _Focal Fossa_ - Release amd64 (20200731) focal InRelease
Err:2 cdrom://Xubuntu 20.04.1 LTS _Focal Fossa_ - Release amd64 (20200731) focal Release
  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Hit:3 http://us.archive.ubuntu.com/ubuntu focal InRelease
Hit:4 https://dl.winehq.org/wine-builds/ubuntu focal InRelease                                             
Hit:5 http://security.ubuntu.com/ubuntu focal-security InRelease                                           
Hit:6 https://dl.winehq.org/wine-builds/ubuntu jammy InRelease                      
Hit:7 http://us.archive.ubuntu.com/ubuntu focal-updates InRelease                      
Hit:8 http://us.archive.ubuntu.com/ubuntu focal-backports InRelease                    
Hit:9 http://archive.canonical.com/ubuntu focal InRelease        
Reading package lists... Done
E: The repository 'cdrom://Xubuntu 20.04.1 LTS _Focal Fossa_ - Release amd64 (20200731) focal Release' does not have 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.

[ubfan1]

In the Software & Updates program, tab Ubuntu Software, uncheck the cdrom at the bottom. Unneeded at this point.

[guiverc]

I don't see any attempt to `apt upgrade`, or even `apt full-upgrade`.

The `sudo apt update` command (or `sudo apt-get update` you used) will only update the software lists, so your machine is aware of what upgrades are available, but those found upgraded packages are not applied until you command it.

The `sudo apt upgrade` will apply the previously discovered upgrades; though there are certain cases where upgrades cannot be applied (package removals need occur; you need to confirm you're happy for this), thus the `apt full-upgrade` command exists to show you're happy for the upgrades to delete packages too (where required; full upgrade does the upgrade; see https://manpages.ubuntu.com/manpages...an8/apt.8.html or `man apt`).

For removing the installation media; refer to ubfan1's response; or https://askubuntu.com/questions/7767...-have-a-releas may also be helpful.

[reut2]

I do not see cdrom at bottom:

[reut2]

I do not see cdrom at bottom:

[guiverc]

To see my Installation Media, I need to go to the Other Software tab.

I'll suggest clicking the Other Software tab, as you show only the Ubuntu Software tab.

[bobunderwood99]

Open the "Other Software" tab.