#sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 40976EAF437D05B5
#sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 3B4FE6ACC0B21F32
#vi /etc/apt/source.list
###### Ubuntu Main Repos
deb http://jp.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://jp.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
###### Ubuntu Update Repos
deb http://jp.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://jp.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://jp.archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://jp.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://jp.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://jp.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://jp.archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://jp.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
apt-get update
apt-get upgrade
apt-get dist-upgrade
reboot
