create.gfs

# Create partition table
part-init /dev/sda mbr

# root
part-add /dev/sda p 2048 -1
part-set-bootable /dev/sda 1 true
part-set-mbr-id /dev/sda 1 0x83

# Format partition
mkfs ext4 /dev/sda1 label:linux-root
mount /dev/sda1 /

# Extract ArchLinuxARM rootfs
tar-in tmp/ArchLinuxARM-aarch64-latest.tar.gz / compress:gzip xattrs:true selinux:true acls:true

# Copy in extlinux.conf
mkdir /boot/extlinux
copy-in config/extlinux.conf /boot/extlinux

# Copy in uEnv.txt
copy-in tmp/uEnv.txt /boot

# Write bootloader
copy-device-to-device /dev/sdb /dev/sda srcoffset:512 destoffset:512
copy-device-to-device /dev/sdb /dev/sda size:444