Comment 8 for bug 1869053

I faced this issue too, weirdly I installed 20.04.1 before and didn't face this issue. However after I got the crash message, I was still able to boot into the system. I noticed everything seemed to be working alright except the third party softwares hadn't been installed, I'm guessing that's where it crashes. I installed the ubuntu-restricted-extras package from terminal. (I also faced an issue of it asking me to enter the installation media while truing to install this package, I had to fix that with `sudo sed -i '/cdrom/d' /etc/apt/sources.list` and then install the package).