The objective of these instructions is to create a complete Arm64 OS (Userland and Kernel) using Debian Debootstrap and RPI-Update for use on the Raspberry Pi 3 and 4.
Prerequisites:
- An existing Debian/Raspbian system (any architecture will do)
- An empty SD card formatted as per a standard Raspbian installation mounted to /mnt/sd on the build system
- 1st Partition 0-256MB = FAT32 (Mount to /mnt/sd/boot)
- 2nd Partition 256MB+ = EXT4 (Mount to /mnt/sd)