I'm very much a beginner using Ubuntu 16.04.
From this page, VirtualBox - RTR3InitEx failed with rc=-1912 (rc=-1912)
I followed this instruction among others from Ravexina:
mkdir ~/apt-tmp
sudo mv /etc/apt/sources.list.d/* ~/apt-tmp
When I finished, I noticed this warning from Asme Just:
sudo mv /etc/apt/sources.list.d/* ~/apt-tmpby doing this, sudo apt-get install won't install any other software after. So don't forget to move it back – Asme Just Aug 23 '17 at 8:35
To where should I move it back, and how? I confess that I'll need the script to type.
Thanks very much.