cdimage 배포본으로부터 4096MB 크기의 이미지파일생성. # dd if=/dev/zero of=ubuntu.img bs=1MB count=0 seek=4096 # mke2fs -F ubuntu.img # mkdir rootfs # mount -o loop ubuntu.img rootfs # tar -C rootfs -zxf rootfs_cdimage.tgz # umount rootfs