After sudo apt-get update command.
Hit http://ca.archive.ubuntu.com xenial-security/universe Translation-en
Hit http://ca.archive.ubuntu.com xenial-backports/main Sources
Hit http://ca.archive.ubuntu.com xenial-backports/restricted Sources
Hit http://ca.archive.ubuntu.com xenial-backports/universe
Result after both commands.
Package: xserver-xorg-input-vmmouse
Status: install ok installed
Priority: optional
Section: x11
Installed-Size: 114
Maintainer: Ubuntu Developers
Architecture: amd64
Version: 1:13.0.0-1build1
Provides: xorg-driver-input
Depends: libc6 (>= 2.7), xorg-input-abi-20, xser
Followed the commands and nothing happened that I could see. Entered all
3 commands ok with no results after each entry.
List that showed from from your 2nd email commands.
~$ ls -ld /var/lib/dpkg/s*
-rw-r--r-- 1 root root 163 Jul 22 2014 /var/lib/dpkg/statoverride
-rw-r--r-- 1 root root 21