SteamOS SSH preparation

steamos-ssh.sh

#!/bin/bash
set -e
set -u

# following stuff kinda copied from /usr/bin/steamos-chroot

[ -e /usr/lib/steamos/steamos-partitions-lib ] && \
    . /usr/lib/steamos/steamos-partitions-lib  || \
    { echo "Failed to source '/usr/lib/steamos/steamos-partitions-lib'"; exit 1; }

DISK=/dev/nvme0n1
ROOTFS_DEVICE=

prepare_chroot_at() {
  local dir=$1

  mount -o rw "$ROOTFS_DEVICE" $dir
  mount --bind /dev  $dir/dev
  mount --bind /proc $dir/proc
  mount --bind /run  $dir/run
  mount --bind /sys  $dir/sys
  mount --bind /sys/firmware/efi/efivars $dir/sys/firmware/efi/efivars
  mount -t tmpfs -o size=128M tmpfs $dir/tmp
  #mount "$EFI_DEVICE" $dir/efi
  #mount "$ESP_DEVICE" $dir/esp
  #mount "$VAR_DEVICE" $dir/var
  if [ -d $dir/var/boot ]; then
    mount --bind $dir/var/boot $dir/boot
  fi
}

for partset in A B
do
  ROOTFS_DEVICE=$(get_device_by_partlabel $DISK rootfs-$partset)

  mkdir /mnt/steamos -p

  # just in case we failed to unmount in a previous iteration of this script
  sudo umount -R /mnt/steamos || true

  echo "Mounting partset $partset…" >&2
  prepare_chroot_at /mnt/steamos
  
  # enable SSH and set a password for deck user to log in with
  echo "> Enabling SSH" >&2
  chroot /mnt/steamos systemctl enable sshd
  echo "> Setting deck user password to \"deck\"" >&2
  echo "deck:deck" | chroot /mnt/steamos chpasswd
  
  # force desktop session on bootup
  echo "> Setting SteamOS session to plasma-persistent" >&2
  chroot /mnt/steamos steamos-session-select plasma-persistent

  echo "> Unmounting" >&2
  sudo umount -R /mnt/steamos
done