This bug was fixed in the package ubuntu-release-upgrader - 1:16.04.26
--------------- ubuntu-release-upgrader (1:16.04.26) xenial; urgency=medium
* do-release-upgrade: do not run the release upgrade if either not all fully phased updates are installed or a reboot is required due to a libc6 upgrade. (LP: #1797209)
-- Brian Murray <email address hidden> Tue, 06 Nov 2018 15:55:10 -0800
This bug was fixed in the package ubuntu- release- upgrader - 1:16.04.26
--------------- release- upgrader (1:16.04.26) xenial; urgency=medium
ubuntu-
* do-release-upgrade: do not run the release upgrade if either not all
fully phased updates are installed or a reboot is required due to a libc6
upgrade. (LP: #1797209)
-- Brian Murray <email address hidden> Tue, 06 Nov 2018 15:55:10 -0800