THE_DEV=/dev/mmcblk0
THE_HOSTNAME=somehost


raspi.debian.net
xzcat image.xz | pv > $THE_DEV


fdisk $THE_DEV
# resize partition 2


btrfs-convert ${THE_DEV}p2
mount ${THE_DEV}p2 /mnt
btrfs fi resize max /mnt
cd /mnt
rmdir lost+found

btrfs subv create @root
mv ./* @root/
mv @root/ext2_saved/ @ext2_saved
mkdir @root/btrfs
btrfs subv create @apt; mv @root/var/cache/apt/archives/* @apt/
btrfs subv create @varlog
btrfs subv create @vartmp; chmod 1777 @vartmp ; chmod 0755 @root/var/tmp
btrfs subv set-default @root

cat <<EOT >| @root/etc/fstab
# <file system>         <dir>                   <type>  <options>                                       <dump><pass>
LABEL=RASPIROOT         /                       btrfs   subvol=@root,discard,compress,nodev                 2   0
LABEL=RASPIROOT         /btrfs                  btrfs   subvol=/,discard,compress,nodev,nosuid              0   0
LABEL=RASPIROOT         /var/cache/apt/archives btrfs   subvol=@apt,discard,compress,nodev,nosuid           0   0
LABEL=RASPIROOT         /var/log                btrfs   subvol=@varlog,discard,compress,nodev,nosuid        0   0
LABEL=RASPIROOT         /var/tmp                btrfs   subvol=@vartmp,discard,compress,nodev,nosuid        0   0
LABEL=RASPIFIRM         /boot/firmware          vfat    discard,nodev,nosuid,noexec                         1   0
EOT


rm @root/initrd.img @root/initrd.img.old @root/vmlinuz @root/vmlinuz.old
echo 'do_symlinks=no' > @root/etc/kernel-img.conf

rmdir @root/var/log/journal
find @root/usr/local -type f -print -delete
find @root/etc/systemd/system -name 'rpi*' -print -delete
find @root/etc/systemd/system -type d -empty -print -delete


echo $THE_HOSTNAME >| @root/etc/hostname
ln -sf /usr/share/zoneinfo/Australia/Sydney @root/etc/localtime
echo -n >| @root/etc/motd


cp ~/monosys/etc/ssh/sshd_config @root/etc/ssh/sshd_config
ssh-keygen -f @root/etc/ssh/ssh_host_ed25519_key -t ed25519 -N '' -C ''
cp ~/.ssh/id_ed25519.pub @root/root/.ssh/authorized_keys


# boot

ssh root@192.168.1.XXX

passwd -l root
dpkg-reconfigure raspi-firmware
apt-get update
apt-get install locales
dpkg-reconfigure locales

apt-get install aptitude curl git python3 vim
curl -sSfL https://code.delx.au/p/dotfiles | bash
exit
ssh root@192.168.1.XXX

mkdir /root/bin/
git clone https://code.delx.au/monosys
ln -s /root/monosys/bin /root/bin/monosys-bin


cp monosys/etc/systemd/network/ethernet.network /etc/systemd/network/
systemctl stop networking ; systemctl restart systemd-networkd
systemctl disable networking ; systemctl enable systemd-networkd

apt-get install aptitude
mkdir /root/monosys/package-lists/local
ln -s /root/monosys/package-lists/local /root/.aptorphan
cd /root/monosys/package-lists/local
ln -s ../debian/base
cp ../debian/system-raspi system
aptorphan