This question already has an answer here:
There was a bug fix awhile back for this problem: `do-release-upgrade` selects 18.04 instead of 17.10 target. My problem is the opposite of this bug fix.
On my test partition when I try to upgrade 16.04 to 18.04 and I run:
~$ sudo do-release-upgrade Checking for a new Ubuntu release Get:1 Upgrade tool signature [819 B] Get:2 Upgrade tool [1,253 kB] Fetched 1,254 kB in 0s (0 B/s) authenticate 'artful.tar.gz' against 'artful.tar.gz.gpg' extracting 'artful.tar.gz'
It is selecting Artful (17.10) and not Bionic (18.04).
If I change
/etc/update-manager/release-upgrades last line from:
do-release-upgrade I get this:
$ sudo do-release-upgrade Checking for a new Ubuntu release No new release found.
Assuming 18.04 has been properly populated into Canonical Repositories, what am I doing wrong???