I've recently installed Ubuntu, and I'm trying to do some post-install things and install softwares, but while installing steam through the latest .deb, I was missing the libGL.so.1 library. I went to update & install libgl1 using: sudo apt-get update && apt-get install libgl1
However, I was being denied access despite using sudo. It gave me: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied) Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?
