Você pode usar o ubuntu-support-status
comando
$ ubuntu-support-status --help
Usage: ubuntu-support-status [options]
Options:
-h, --help show this help message and exit
--show-unsupported Show unsupported packages on this machine
--show-supported Show supported packages on this machine
--show-all Show all packages with their status
--list Show all packages in a list
com argumento correspondente --show-unsupported
.
Abaixo está um exemplo do meu sistema LTS 16.04.5:
$ ubuntu-support-status --show-unsupported
Support status summary of 'hostname':
You have 94 packages (1.9%) supported until April 2021 (Community - 5y)
You have 2668 packages (54.0%) supported until April 2021 (Canonical - 5y)
You have 647 packages (13.1%) supported until April 2019 (Community - 3y)
You have 79 packages (1.6%) that can not/no-longer be downloaded
You have 1456 packages (29.4%) that are unsupported
No longer downloadable:
acroread acroread-bin:i386 cpp-4.4 cpp-4.5 cpp-4.6
...
Unsupported:
abiword-plugin-grammar adequate aglfn alien android android-tools-adb
android-tools-fastboot ant ant-optional antiword apt-file
...
y-ppa-manager yad zenmap
(Adicionei o ...
número limite de linhas).
vrms
a lista de softwares "não gratuitos".