Verification of downloaded Ubuntu 18.04 LTS on Debian 9.3 (Stretch)
35106
Where to find the checksums of Ubuntu ISO images?
49658
Elegant way to check for missing packages and install them?
74573
How can I tell what date Ubuntu was installed?
22506
Is there a way to find out whether an updated program/package lands in the official Ubuntu release repositories?
7101
How to find out which (not installed) Debian package a file belongs to?
31953
How to automatically fetch missing dependencies when installing software from .deb?
89366
Which package version am I using?
38595
Are Ubuntu packages security audited?
37086
Is there a free trusted virtual machine image with Ubuntu preinstalled?
34069
Why am I getting authentication errors for packages from an Ubuntu repository?
151498
How to find out if a specific package is installed on Debian?
7527
understanding Debian dpkg package version numbers
34306
How is Ubuntu different from Debian?
29362
How do I install a single package from Debian testing or unstable on stable?
95880
How to keep my Debian system with the latest packages?
19395
How can I install more recent versions of software than what Debian provides?
127766
how to upgrade my Debian package with minor changes