sources.list:

deb http://ca.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse 
deb-src http://ca.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse 
deb http://ca.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse 
deb http://ca.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse 
deb-src http://ca.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse 
deb-src http://ca.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse