how do I install 12.04?
12578
How do I upgrade to a newer version of Ubuntu?
133193
Can I install Ubuntu 12.04 LTS on a PC with no OS?
142700
What's the difference between 12.04 and 12.10?
124399
Is it possible to install Unity 6.x.x on 12.04?
89732
How to install aircrack on Ubuntu 12.04
102559
How to install package from newer distribution?
99169
How to install previous Firefox version?
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
126659
upgrade from 11.10 to 12.04 - No upgrade option available in update manager
2895
How do I install Java?
63514
How do I decide what version of Ubuntu to install?
119971
Install 17.10 on 32 bit machine
33540
How can I switch a 32-bit installation to a 64-bit one?
89744
Extended support for Ubuntu 12
13107
How to install updates via command line?
30645
How to install (old) packages for Ubuntu 9.04?