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Bash

#!/bin/bash
set -e
apt-get -y install mdadm cryptsetup debootstrap
# returns /dev/md0 as root device
# returns /dev/md1 as boot device
"./hardware/${1}/parted.sh" "$2"
# encrypt and unlock root device
echo -n 'Enter luks password: '
read -s md0pwd
echo -n $md0pwd | cryptsetup -q luksFormat /dev/md0
echo -n $md0pwd | cryptsetup open --type luks /dev/md0 md0-unlocked
unset md0pwd
# format
chroot=/mnt/md0-unlocked
# root device
mkfs.ext4 /dev/mapper/md0-unlocked
mkdir /mnt/md0-unlocked
mount /dev/mapper/md0-unlocked /mnt/md0-unlocked
# boot device
mkfs.ext4 /dev/md1
mkdir "$chroot/boot"
mount /dev/md1 "$chroot/boot"
# debootstrap
debootstrap --variant=minbase --arch=amd64 buster "$chroot" https://deb.debian.org/debian/
mount -t proc none "$chroot/proc"
mount -t sysfs none "$chroot/sys"
mount -o bind /dev "$chroot/dev"
# set hostname
echo "$2" > "$chroot/etc/hostname"
# create hardware-setup copy for post-debootstrap
mkdir "$chroot/hardware-setup"
cp -a * "$chroot/hardware-setup"
chroot "$chroot" /hardware-setup/post-debootstrap-installer.sh
rm -r "$chroot/hardware-setup"