This bug was fixed in the package ubuntu-release-upgrader - 1:18.10.11.8
--------------- ubuntu-release-upgrader (1:18.10.11.8) cosmic; urgency=medium
* DistUpgrade/DistUpgradeViewNonInteractive.py: when responding to a conffile prompt with "n" use bytes not a string. (LP: #1796193)
-- Brian Murray <email address hidden> Fri, 10 May 2019 16:14:50 -0700
This bug was fixed in the package ubuntu- release- upgrader - 1:18.10.11.8
--------------- release- upgrader (1:18.10.11.8) cosmic; urgency=medium
ubuntu-
* DistUpgrade/ DistUpgradeView NonInteractive. py: when responding to a
conffile prompt with "n" use bytes not a string. (LP: #1796193)
-- Brian Murray <email address hidden> Fri, 10 May 2019 16:14:50 -0700