mkdir $WORK/root mount -o loop $WORK/root.ext2 $WORK/root
mount -t proc proc $WORK/root/proc mount -t sysfs sysfs $WORK/root/sys mount -t devpts devpts $WORK/root/dev/pts mount -t tmpfs tmpfs $WORK/root/dev/shm
mount --bind /dev $WORK/root/dev #這句是安裝gentoo時學到的。
