B83C

#!/bin/bash

BASE=/usr/local/bin
RELAY_PIN=17
VPATH=/srv/ftp

if [ "$1" == "-r" ]; then
  sudo rm $BASE/relay.sh
  sudo rm $BASE/videoloop.sh
  sudo rm /etc/cron.d/videoloop

B83C

wget https://dl-cdn.alpinelinux.org/alpine/latest-stable/releases/aarch64/alpine-virt-3.15.0-aarch64.iso -O alpine.iso #or whatever versions suits you best
dd if=alpine.iso of=/dev/sda

mkdir /media/setup
cp -a /media/sda/* /media/setup
mkdir /lib/setup
cp -a /.modloop/* /lib/setup
/etc/init.d/modloop stop
umount /dev/sda
mv /media/setup/* /media/sda/

B83C

#The steps are simple
#You would need to get the machine to boot into a live os in ram so as to allow 
#modifications from within the machine without having to set up using another.
    
#One way to do it is to boot an alpine img:
wget https://dl-cdn.alpinelinux.org/alpine/v3.14/releases/aarch64/alpine-virt-3.14.2-aarch64.iso -O alpine.iso #or whatever versions suits you best
dd if=alpine.iso of=/dev/sda

#Now you have to reboot the system. If 'sudo reboot' doesn't work, try hard 
#reboot from the OCI Console