locale-gen en_US.utf8
sed -i 's/^\(LANG\s*=\s*\).*/\1"en_US.UTF-8"/' /etc/environment
sed -i 's/^\(LC_ALL\s*=\s*\).*/\1"en_US.UTF-8"/' /etc/environment
reboot
===== enable backports =====
sed -i 's/^#\s*\(deb.*backports .*\)/\1/' /etc/apt/sources.list.d/sources.list
apt-get update
{{tag>linux tkl}}