#! /bin/bash

# check if we already use an external mirror
grep -q "external mirror" $target/etc/apt/sources.list && exit 0

cat <<EOM > $target/etc/apt/sources.list
# external mirror
deb $ubuntumirror/ubuntu $ubuntudist main restricted universe multiverse
deb $ubuntumirror/ubuntu $ubuntudist-updates main restricted universe multiverse
deb $ubuntumirror/ubuntu $ubuntudist-security main restricted universe multiverse
EOM