+build_rootfs()
+{
+(
+ sudo rm -rf testing
+ sudo eatmydata debootstrap --arch=arm64 --include iwd,tcpdump,vim,tmux,vlan,ntpdate,bridge-utils,parted,curl,wget,grub-efi-arm64,mtr-tiny,dbus,ca-certificates,sudo,openssh-client testing testing http://ftp.fau.de/debian
+
+ export KERNEL=`ls -1rt linux-image*.deb | grep -v dbg | tail -1`
+
+ cd testing
+
+ sudo bash -c 'echo live > etc/hostname'
+
+ sudo bash -c 'echo > etc/motd'
+
+ sudo cp ../../files/sources.list etc/apt/sources.list
+ sudo cp ../../files/hosts etc/hosts
+ sudo cp ../../files/quickstart.txt root/
+ sudo cp ../../files/eth0 etc/network/interfaces.d/
+
+ sudo bash -c 'chroot . apt update'
+ sudo bash -c 'chroot . apt install -y firmware-linux'
+
+ sudo -- perl -p -i -e 's/root:x:/root::/' etc/passwd
+
+ sudo -- ln -s lib/systemd/systemd init
+
+ sudo cp ../${KERNEL} .
+ sudo chroot . dpkg -i ${KERNEL}
+ sudo rm ${KERNEL}
+
+ sudo bash -c 'apt-get clean'
+)
+}
+
+build_stick()
+{
+(
+ rm -rf stick
+ mkdir -p stick/efi/boot stick/efi/debian/
+ sudo bash -c 'cd testing; find . | cpio --quiet -H newc -o | pigz > ../stick/initrd.gz'
+ cp testing/usr/lib/grub/arm64-efi/monolithic/grubaa64.efi stick/efi/boot/bootaa64.efi
+ cp testing/boot/vmlinuz* stick/vmlinuz
+ cp ../files/grub.cfg stick/efi/debian/grub.cfg
+ (cd stick; tar cf ../asahi-debian-live-`date "+%Y-%m-%d"`.tar .)
+)
+}
+
+build_fs()
+{
+(
+ rm -f media
+ dd if=/dev/zero of=media bs=1 count=0 seek=1G
+ mkdir -p mnt
+ mkfs.ext4 media
+ tune2fs -O extents,uninit_bg,dir_index -m 0 -c 0 -i 0 media
+ sudo mount -o loop media mnt
+ sudo cp -a testing/* mnt/
+ sudo rm mnt/init
+ sudo umount mnt
+ tar cf - media | pigz > m1.tgz
+)
+}