Verification for Impish root@verify-lp1953610-impish:~# ### Verification # Install updated command-not-found from -proposed # https://wiki.ubuntu.com/Testing/EnableProposed cat </etc/apt/sources.list.d/ubuntu-$(lsb_release -cs)-proposed.list # Enable Ubuntu proposed archive deb http://archive.ubuntu.com/ubuntu/ $(lsb_release -cs)-proposed restricted main multiverse universe EOF root@verify-lp1953610-impish:~# # Update command-not-found. apt update apt install command-not-found Get:17 http://archive.ubuntu.com/ubuntu impish-proposed/universe amd64 c-n-f Metadata [1484 B] Fetched 543 kB in 2s (268 kB/s) Reading package lists... Done Building dependency tree... Done Reading state information... Done 7 packages can be upgraded. Run 'apt list --upgradable' to see them. Reading package lists... Done Building dependency tree... Done Reading state information... Done The following package was automatically installed and is no longer required: libfreetype6 Use 'apt autoremove' to remove it. The following additional packages will be installed: python3-commandnotfound The following packages will be upgraded: command-not-found python3-commandnotfound 2 upgraded, 0 newly installed, 0 to remove and 5 not upgraded. Need to get 15.6 kB of archives. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://archive.ubuntu.com/ubuntu impish-proposed/main amd64 command-not-found all 21.10.1 [5100 B] Get:2 http://archive.ubuntu.com/ubuntu impish-proposed/main amd64 python3-commandnotfound all 21.10.1 [10.5 kB] Fetched 15.6 kB in 0s (34.3 kB/s) (Reading database ... 32292 files and directories currently installed.) Preparing to unpack .../command-not-found_21.10.1_all.deb ... Unpacking command-not-found (21.10.1) over (21.10.0) ... Preparing to unpack .../python3-commandnotfound_21.10.1_all.deb ... Unpacking python3-commandnotfound (21.10.1) over (21.10.0) ... Setting up python3-commandnotfound (21.10.1) ... Setting up command-not-found (21.10.1) ... Scanning processes... No services need to be restarted. No containers need to be restarted. No user sessions are running outdated binaries. root@verify-lp1953610-impish:~# # Verify version dpkg -l | grep command-not-found ii command-not-found 21.10.1 all Suggest installation of packages in interactive bash sessions ii python3-commandnotfound 21.10.1 all Python 3 bindings for command-not-found. root@verify-lp1953610-impish:~# # Force rebuild of DB rm -rf /var/lib/command-not-found/* apt update ls -lah /var/lib/command-not-found/ Hit:1 http://security.ubuntu.com/ubuntu impish-security InRelease Hit:2 http://archive.ubuntu.com/ubuntu impish InRelease Hit:3 http://archive.ubuntu.com/ubuntu impish-updates InRelease Hit:4 http://archive.ubuntu.com/ubuntu impish-backports InRelease Hit:5 http://archive.ubuntu.com/ubuntu impish-proposed InRelease Reading package lists... Done Building dependency tree... Done Reading state information... Done 5 packages can be upgraded. Run 'apt list --upgradable' to see them. total 3.2M drwxr-xr-x 1 root root 62 Mar 10 19:21 . drwxr-xr-x 1 root root 506 Mar 10 19:06 .. -rw-r--r-- 1 root root 3.2M Mar 10 19:21 commands.db -rw-r--r-- 1 root root 3.9K Mar 10 19:21 commands.db.metadata root@verify-lp1953610-impish:~# # Verify success su - ubuntu ubuntu@verify-lp1953610-impish:~$ lck WARNING:root:could not open file '/etc/apt/sources.list.d/ubuntu-impish-proposed.list' Command 'lck' not found, did you mean: command 'lcp' from deb lsh-client (2.1-13) command 'lcf' from deb ucf (3.0043) command 'zck' from deb zchunk (1.1.9+ds1-1) command 'ck' from deb python3-ck (1.9.4-1.1) command 'ack' from deb ack (3.4.0-1) command 'lc' from deb mono-devel (6.8.0.105+dfsg-3) command 'ick' from deb intercal (30:0.30-3) Try: apt install ubuntu@verify-lp1953610-impish:~$ ack WARNING:root:could not open file '/etc/apt/sources.list.d/ubuntu-impish-proposed.list' Command 'ack' not found, but can be installed with: apt install ack Please ask your administrator. ubuntu@verify-lp1953610-impish:~$ exit logout root@verify-lp1953610-impish:~# ## END Verification