#!/bin/sh

if [ `whoami` != "root" ]
then
    echo "Error: $0 must be run as root"
    exit 1
fi

# create one RAID-1 array:
mdadm --create /dev/md0 --level=mirror --raid-devices=2 /dev/sda1 /dev/sdb1

# create mount points
mkdir /r0

# create file systems. For Libre, use xfs, for RPI, use ext4

mkfs.ext4 /dev/md0

# mount them
mount /dev/md0 /r0

# tweak fstab
echo "/dev/md0 /r0 ext4 defaults,noatime,noauto 0 1" | tee -a /etc/fstab

# uncomment this to hardwire devices configured above:
# mdadm --detail --scan | sudo tee -a /etc/mdadm/mdadm.conf