How to rollback from 17.04 to 16.04?
58888
Change Ubuntu 17.04 to Ubuntu 16.04.2 LTS
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
72285
Reverting back to Unity (Unity 7)
89166
How to downgrade Kernel
47002
How do I downgrade to Subversion 1.6?
124846
How do I rollback a TFS check-in?
113710
Reinstall software-center in Ubuntu 16.04
211
Can I skip over releases when upgrading?
54839
How to identify explicitly saved versions when reverting a document?
7580
How to safely upgrade from an older Ubuntu version to a newer one?
91502
Undo git pull, how to bring repos to old state
119971
Install 17.10 on 32 bit machine
4660
Should I be offered the option to upgrade to 18.04.1?
38676
"Unable to rollback to the current revision" when trying to rollback question revision
28172
I want to downgrade from Yosemite 10.10 to Mavericks or previous operating system
109902
Will I lose the already installed applications if I upgrade from ubuntu 18.04 to 20.04
107548
Where can I download Ubuntu 16.04?