-# 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 MIRRORURL $ubuntudist main restricted universe multiverse
-deb MIRRORURL $ubuntudist-updates main restricted universe multiverse
-deb MIRRORURL $ubuntudist-security main restricted universe multiverse
-EOM
-
-# determine a fast mirror for Ubuntu
-list=$(curl -s http://mirrors.ubuntu.com/mirrors.txt)
-mirror=$(netselect $list | awk '{print $2}')
-sed -i -e "s#MIRRORURL#$mirror#" $target/etc/apt/sources.list