Your source entries are wrong.
Change them from canonical to ubuntu
Yours show
Code:
'http://archive.canonical.com/ubuntu
should be
Code:
'http://archive.ubuntu.com/ubuntu
I don't think the canonical archive repo has anything other than Partner.
And Partner is basically obsolete, since the last useful package it provided was adobe-flashplugin.
EDIT:
You might post your sources.list file as you might already have the proper entry and only need to remove the referenced canonical entry(ies?)
Easiest to just copy the output from
Code:
cat /etc/apt/sources.list
and post it.