I got following error while running sudo update-manager -d
command. Why this error occurred? And how to solve it?
sudo update-manager -d
Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not connect: Connection refused
Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not connect: Connection refused
Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not connect: Connection refused
(update-manager:2298): Gtk-WARNING **: cannot open display: :0
update-manager -d
to upgrade Ubuntu to 18.04 manually. You should usedo-release-upgrade
on the command line to upgrade, at least once 18.04 is released. However, 18.04 is not yet officially released at this moment, so your results in upgrading might vary.