Upgrading 20.04 to 22.04 on an ASUS laptop, installation has been hung at "installing Firefox snap" for 24 hours. System is still responsive, did not lock (unlike other questions), but the terminal log has not changed in 24 hours.
How much longer should I give it before killing the install?
What's the likely outcomes after killing the install? Will I be able to use whatever of 22.04 loaded or have to go back to an ISO?
I had the same issue(I had Firefox running during the install, my bad!).
Here's what I've done to solve this.
Stop the upgrade process. (Since I was in terminal, I used ctrl+c).
sudo apt --fix-broken install
sudo apt full-upgrade
And it works like a charm.
The 22.04 installation also seems to get hung at "installing Firefox snap" when installing 22.04 Desktop onto 22.04 Server.
The solution for me was to ssh into the system (so as not to interrupt the apt install) and run sudo killall snap.
The installation then immediately proceeded as normal.
