Stick or Disk to upgrade from 16.04 to 18.04
806
Where can I get an Ubuntu Installation CD/DVD/USB?
21323
Where can I download the latest release of Ubuntu?
78587
How do I update core to 8.5?
97346
Is it possible to skip releases during an upgrade?
5882
How to upgrade Ubuntu from an ISO image
67481
How to revert a do-release-upgrade?
113056
How to upgrade from 12.04 to 12.10 using CD?
6741
Windows 8 upgrade Recovery Disk
211
Can I skip over releases when upgrading?
119595
Is it necessary to upgrade to 14.04 LTS or can I stand in 12.04 LTS forever with no problem?
4309
How can I download an older version of OS X/macOS?
49889
Will there be data loss if I upgrade?
43281
Upgrade Debian Jessie (8) to Buster (10) possible or need to go sequential in versions upgrades?
46261
I need an equivalent of gksu in 18.04
77159
How do I upgrade to Windows 10 if I have less than 8 GB free?
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
92107
Is there a 32-bit version of Ubuntu 18.04 desktop?