#!/bin/bash

echo "Umount existing mountpoints..."
sudo umount /var/lib/rancher
sudo umount /run/k3s
sudo umount /sd-card

echo "Mount SD card..."
sudo mkdir -p /sd-card
sudo mount /dev/mmcblk0p2 /sd-card

echo "Purge Linuxpartition of SD card..."
sudo rm -rf /sd-card/*

echo "Create folders..."
sudo mkdir -p /var/lib/rancher && sudo chmod 777 /var/lib/rancher
sudo mkdir -p /sd-card/var/lib/rancher && sudo chmod 777 /sd-card/var/lib/rancher
sudo mkdir -p /run/k3s && sudo chmod 777 /run/k3s
sudo mkdir -p /sd-card/run/k3s && sudo chmod 777 /sd-card/run/k3s

echo "Bind-mount folders..."
sudo mount --bind /sd-card/var/lib/rancher /var/lib/rancher
sudo mount --bind /sd-card/run/k3s /run/k3s

echo "Done."

echo ""
echo "==================================="
echo ""
echo "Add the following lines to /etc/fstab:"
echo "/dev/mmcblk0p2            /sd-card          ext4  defaults  0  2"
echo "/sd-card/var/lib/rancher  /var/lib/rancher  none  bind      0  0"
echo "/sd-card/run/k3s          /run/k3s          none  bind      0  0"