ubuntu@ip-172-31-30-115:~$ sudo cat /etc/apt/sources.list.d/MariaDB.list
# MariaDB 10.0 repository list - created 2015-08-03 21:03 UTC
# http://mariadb.org/mariadb/repositories/
deb http://ftp.osuosl.org/pub/mariadb/repo/10.0/ubuntu mariadb main
deb-src http://ftp.osuosl.org/pub/mariadb/repo/10.0/ubuntu mariadb main

ubuntu@ip-172-31-30-115:~$ sudo apt-cache policy
Package files:
 100 /var/lib/dpkg/status
     release a=now
 500 http://security.ubuntu.com/ubuntu/ trusty-security/universe Translation-en
 500 http://security.ubuntu.com/ubuntu/ trusty-security/main Translation-en
 500 http://security.ubuntu.com/ubuntu/ trusty-security/universe amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty-security,n=trusty,l=Ubuntu,c=universe
     origin security.ubuntu.com
 500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty-security,n=trusty,l=Ubuntu,c=main
     origin security.ubuntu.com
 500 http://us-west-2.ec2.archive.ubuntu.com/ubuntu/ trusty-updates/universe Translation-en
 500 http://us-west-2.ec2.archive.ubuntu.com/ubuntu/ trusty-updates/main Translation-en
 500 http://us-west-2.ec2.archive.ubuntu.com/ubuntu/ trusty-updates/universe amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty-updates,n=trusty,l=Ubuntu,c=universe
     origin us-west-2.ec2.archive.ubuntu.com
 500 http://us-west-2.ec2.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty-updates,n=trusty,l=Ubuntu,c=main
     origin us-west-2.ec2.archive.ubuntu.com
 500 http://us-west-2.ec2.archive.ubuntu.com/ubuntu/ trusty/universe Translation-en
 500 http://us-west-2.ec2.archive.ubuntu.com/ubuntu/ trusty/main Translation-en
 500 http://us-west-2.ec2.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty,n=trusty,l=Ubuntu,c=universe
     origin us-west-2.ec2.archive.ubuntu.com
 500 http://us-west-2.ec2.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
     release v=14.04,o=Ubuntu,a=trusty,n=trusty,l=Ubuntu,c=main
     origin us-west-2.ec2.archive.ubuntu.com
Pinned packages: