How to upgrade ubuntu from 12.10 to 13.4 without lossing anything?
36703
How do I upgrade from 12.10 to 13.04?
67359
Upgrade to the latest PHP version in Ubuntu
74990
Error while trying to upgrade from Ubuntu 18.04 to 18.10: "Please install all available updates for your release before upgrading."
55211
Problem when upgrading to Ubuntu 14.04 from Ubuntu 12.04
16050
Can I upgrade Xubuntu 18.04 32-bit?
25957
How do I apt-get -y dist-upgrade without a grub config prompt?
43917
What is the difference between apt-get update and upgrade?
144507
No facility exists in Update Manager to upgrade to a new version, why?
74079
How to Upgrade Ubuntu 12.04.2, 12.04.3 to 12.04.4, the next Hardware Enablement Stack?
115421
Ubuntu 13.10 to 14.04 Lts does not upgrade, keeps showing error
2670
Why is "No new release found" when upgrading from a LTS to the next?
121201
Why can't I update applications without upgrading the whole OS?
97346
Is it possible to skip releases during an upgrade?
144172
How to upgrade to a point release from the same base release (12.04 to 12.04.03)
119169
Should I upgrade to 14.04 LTS?
16578
How to upgrade a single package using apt-get?
153774
Upgrade to Ubuntu 13.10 from ISO image