Not able to upgrade from 16.04 lts to 18.04 lts
2670
Why is "No new release found" when upgrading from a LTS to the next?
49161
Upgrade manager wants me to do a partial upgrade
93942
How to fix "Failed to download repository information" error while updating?
128471
How do I update from 9.0.10 to 9.1.0?
65099
Unable to install any updates through update manager/apt-get upgrade
119920
Failed upgrade from Ubuntu 19.10 to 20.04 "Please update the microcode"
51350
While updating the ubuntu 16.04 does not have a Release file Error
16050
Can I upgrade Xubuntu 18.04 32-bit?
115421
Ubuntu 13.10 to 14.04 Lts does not upgrade, keeps showing error
129101
Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
19288
Update manager doesn't offer an upgrade to the new release
1520
How to install software or upgrade from an old unsupported release?
36703
How do I upgrade from 12.10 to 13.04?
121201
Why can't I update applications without upgrading the whole OS?
114305
On really old Ubuntu 6.06 - How to upgrade
16837
Unable to upgrade from 14.04 to 14.10 "Cannot Calculate Upgrades"
20751
Problem upgrading Ubuntu 9.10