Upgrade Ubuntu 16 to Ubuntu 17
991
How can I fix apt error "W: Target Packages ... is configured multiple times"?
10709
Can i upgrade ubuntu without losing my apps and files?
56225
Do I have to download both the 14.04 and the 14.04.1 versions of ubuntu?
11556
Can I smoothly upgrade from one LTS to next LTS release?
127766
how to upgrade my Debian package with minor changes
109539
How can I perform an offline upgrade using Ubiquity on the installation disc?
24165
Upgrade to version newer than repositories
128471
How do I update from 9.0.10 to 9.1.0?
87297
Does upgrading Ubuntu respect my existing partitions?
125976
What Happens When I Upgrade Ubuntu?
31506
How do I update Ubuntu manually?
73465
How to install Scratch 2 on Ubuntu 16.10. or 17.04 (64bit)?
5882
How to upgrade Ubuntu from an ISO image
53938
Can I upgrade from Windows 7 32-bit to Windows 7 64 bit without reinstalling all of my software?
80233
Upgrade to 20.04 from 19.10 isn't available
35093
Upgrading from the command line?
49889
Will there be data loss if I upgrade?