Modem suddenly not enabled when booting from eMMC

[kqlnut]

Speaking of which, how can I turn off automatic checking for updates and the associated popup message? I always run updates from the command line anyway.

PackageKit is responsible for that. You can turn off and mask its service, so it won't get activated again by something else at some point:

Code:

sudo systemctl stop packagekit.service
sudo systemctl disable packagekit.service
sudo systemctl mask packagekit.service

You can also remove gnome-software altogether, it's probably the only package depending on PackageKit.

If you still want to use gnome-software, you should be able to disable automatic updates with this change in the dconf database (haven't tried it myself):

Code:

gsettings set org.gnome.software download-updates false