+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
+)
+}
+
+build_di_stick()
+{
+ rm -rf di-stick
+ mkdir -p live-stick/efi/boot live-stick/efi/debian/
+ wget https://d-i.debian.org/daily-images/arm64/daily/netboot/debian-installer/arm64/initrd.gz
+ mkdir initrd; cd initrd; gzip -cd ../initrd.gz | sudo cpio -imd --quiet
+ rm -rf initrd/lib/modules/*
+ cp -a ../testing/lib/modules/* initrd/lib/modules/
+ (cd initrd; find . | cpio --quiet -H newc -o | pigz > ../initrd.gz)
+ cp testing/usr/lib/grub/arm64-efi/monolithic/grubaa64.efi live-stick/efi/boot/bootaa64.efi
+ cp testing/boot/vmlinuz* live-stick/vmlinuz
+ cp ../files/grub.cfg live-stick/efi/debian/grub.cfg
+ (cd live-stick; tar cf ../m1-d-i-`date "+%Y-%m-%d"`.tar .)
+}
+