I've created a new video that show how to create an ARM64 disk image on an x86 64bit machine using fai-diskimage. FAI needs about 6 minutes to create this cross-architecture disk image. Later I show how to boot this image with Qemu. The video can be found on http://fai-project.org/screenshots/
The log files of this installation are available at https://fai-project.org/logs/armhost/last/ -- regards Thomas
