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I am running Ubuntu 20.04 LTS. My question is about this: Is it safe to add the Debian Testing Repositories to Ubuntu 20.04? I want to have newer software available and software that is Ubuntu specific only (eg. Unity / Virtualbox). Will my system break? I added this to my /etc/apt/sources.list.d/debian-testing.list, am I missing a repo?:

deb http://deb.debian.org/debian testing main
# deb-src http://deb.debian.org/debian testing main

deb http://deb.debian.org/debian testing-updates main


deb-src http://deb.debian.org/debian testing-updates main

When I do sudo apt update and sudo apt upgrade, I receive the result that almost 1GB must be downloaded and that many packages "are no longer required". Is this ok? I dont want to remove those packages, as I need them! Is it safe to perform this upgrade? Will I loose my system?

Odin Bowens
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1 Answers1

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If the packages are no longer required, do not run sudo apt autoremove without first checking or your system might break. The Debian Testing repos might contain duplicate packages which might cause problems. Anyway, why do you want to add those repos?

NinePlusTenEqualsTwentyOne
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