So I'm attempting to upgrade to 16.04 LTS on my 15.10 machine and it doesn't seem to recognize that the upgrade is available. Are there any suggestions where to start investigating this issue? So far nothing has indicated where I might start looking to solve this.
The result of sudo do-release-upgrade -cd is:
Checking for a new Ubuntu release
No new release found
If you edit /etc/update-manager/release-upgrades and change Prompt=lts to Prompt=normal - then it will update.
Try:
$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get dist-upgrade
$ sudo update-manager -d
Then a window should pop up, checking for new releases and you should be able to select "Actualize to 16.04." (or similar)
At least this is how I did it.
It took a few days after the release day, but upgrading to 16.04 is now enabled, so 15.10 users should normally be notified when running Software Updater (and do-release-upgrade should find 16.04).
