updated wih testing

README.md

@@ -2,7 +2,7 @@
 
 [![shellcheck](https://github.com/terem42/zfs-hetzner-vm/actions/workflows/shellcheck.yml/badge.svg)](https://github.com/terem42/zfs-hetzner-vm/actions/workflows/shellcheck.yml)
 
-Scripts to install Debian 10, 11, 12 or Ubuntu 18 LTS, 20 LTS, 22 LTS with ZFS root on Hetzner root servers (virtual and dedicated).<br/>
+Scripts to install Debian 11, 10 or Ubuntu 18 LTS, 20 LTS, 22 LTS with ZFS root on Hetzner root servers (virtual and dedicated).<br/>
 __WARNING:__ all data on the disk will be destroyed.
 
 ## How to use:

hetzner-debian10-zfs-setup.sh

@@ -138,20 +138,20 @@ function check_prerequisites {
 
 function initial_load_debian_zed_cache {
   chroot_execute "mkdir /etc/zfs/zfs-list.cache"
-  chroot_execute "touch /etc/zfs/zfs-list.cache/$v_rpool_name"
+  chroot_execute "touch /etc/zfs/zfs-list.cache/rpool"
   chroot_execute "ln -sf /usr/lib/zfs-linux/zed.d/history_event-zfs-list-cacher.sh /etc/zfs/zed.d/"
 
   chroot_execute "zed -F &"
 
   local success=0
 
-  if [[ ! -e "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" ]] || [[ -e "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" && (( $(find "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" -type f -printf '%s' 2> /dev/null) == 0 )) ]]; then  
-    chroot_execute "zfs set canmount=noauto $v_rpool_name"
+  if [[ ! -e /mnt/etc/zfs/zfs-list.cache/rpool ]] || [[ -e /mnt/etc/zfs/zfs-list.cache/rpool && (( $(find /mnt/etc/zfs/zfs-list.cache/rpool -type f -printf '%s' 2> /dev/null) == 0 )) ]]; then
+    chroot_execute "zfs set canmount=noauto rpool"
 
     SECONDS=0
 
-    while (( SECONDS++ <= 120 )); do
-      if [[ -e "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" ]] && (( $(find "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" -type f -printf '%s' 2> /dev/null) > 0 )); then
+    while (( SECONDS++ <= 300 )); do
+      if [[ -e /mnt/etc/zfs/zfs-list.cache/rpool ]] && (( $(find /mnt/etc/zfs/zfs-list.cache/rpool -type f -printf '%s' 2> /dev/null) > 0 )); then
         success=1
         break
       else
@@ -169,7 +169,7 @@ function initial_load_debian_zed_cache {
 
   chroot_execute "pkill zed"
 
-  sed -Ei "s|/$c_zfs_mount_dir/?|/|g" "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name"
+  sed -Ei 's|/mnt/?|/|g' /mnt/etc/zfs/zfs-list.cache/rpool
 }
 
 function find_suitable_disks {
@@ -399,7 +399,7 @@ function determine_kernel_variant {
 }
 
 function chroot_execute {
-  chroot $c_zfs_mount_dir bash -c "DEBIAN_FRONTEND=noninteractive $1"
+  chroot $c_zfs_mount_dir bash -c "$1"
 }
 
 function unmount_and_export_fs {
@@ -750,14 +750,12 @@ chroot_execute "echo options zfs zfs_arc_max=$((v_zfs_arc_max_mb * 1024 * 1024))
 
 echo "======= setting up grub =========="
 chroot_execute "echo 'grub-pc grub-pc/install_devices_empty   boolean true' | debconf-set-selections"
-chroot_execute "apt install --yes grub-pc"
-for disk in ${v_selected_disks[@]}; do
-  chroot_execute "grub-install $disk"
-done
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes grub-pc"
+chroot_execute "grub-install ${v_selected_disks[0]}"
 
 chroot_execute "sed -i 's/#GRUB_TERMINAL=console/GRUB_TERMINAL=console/g' /etc/default/grub"
 chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX_DEFAULT=.*|GRUB_CMDLINE_LINUX_DEFAULT=\"net.ifnames=0\"|' /etc/default/grub"
-chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=$v_rpool_name/ROOT/debian\"|g' /etc/default/grub"
+chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=rpool/ROOT/debian\"|g' /etc/default/grub"
 
 chroot_execute "sed -i 's/quiet//g' /etc/default/grub"
 chroot_execute "sed -i 's/splash//g' /etc/default/grub"
@@ -771,8 +769,7 @@ if [[ $v_encrypt_rpool == "1" ]]; then
   echo "=========set up dropbear=============="
 
   chroot_execute "apt install --yes dropbear-initramfs"
-    
-  mkdir -p "$c_zfs_mount_dir/etc/dropbear-initramfs"
+
   cp /root/.ssh/authorized_keys "$c_zfs_mount_dir/etc/dropbear-initramfs/authorized_keys"
 
   cp "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key" "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key_temp"
@@ -799,7 +796,7 @@ CONF
 
 echo "========running packages upgrade==========="
 chroot_execute "apt upgrade --yes"
-chroot_execute "apt purge cryptsetup* --yes"
+chroot_execute "apt autoremove --yes"
 
 echo "===========add static route to initramfs via hook to add default routes for Hetzner due to Debian/Ubuntu initramfs DHCP bug ========="
 mkdir -p "$c_zfs_mount_dir/usr/share/initramfs-tools/scripts/init-premount"
@@ -832,7 +829,7 @@ auto lo
 iface lo inet loopback
 iface lo inet6 loopback
 
-allow-hotplug eth0
+auto eth0
 iface eth0 inet dhcp
 iface eth0 inet6 dhcp
 CONF
@@ -847,7 +844,7 @@ chroot_execute "update-grub"
 
 echo "======= setting up zed =========="
 if [[ $v_zfs_experimental == "1" ]]; then
-  chroot_execute "zfs set canmount=noauto $v_rpool_name"
+  chroot_execute "zfs set canmount=noauto rpool"
 else
   initial_load_debian_zed_cache
 fi

hetzner-debian11-zfs-setup.sh

@@ -139,20 +139,20 @@ function check_prerequisites {
 
 function initial_load_debian_zed_cache {
   chroot_execute "mkdir /etc/zfs/zfs-list.cache"
-  chroot_execute "touch /etc/zfs/zfs-list.cache/$v_rpool_name"
+  chroot_execute "touch /etc/zfs/zfs-list.cache/rpool"
   chroot_execute "ln -sf /usr/lib/zfs-linux/zed.d/history_event-zfs-list-cacher.sh /etc/zfs/zed.d/"
 
   chroot_execute "zed -F &"
 
   local success=0
 
-  if [[ ! -e "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" ]] || [[ -e "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" && (( $(find "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" -type f -printf '%s' 2> /dev/null) == 0 )) ]]; then  
-    chroot_execute "zfs set canmount=noauto $v_rpool_name"
+  if [[ ! -e /mnt/etc/zfs/zfs-list.cache/rpool ]] || [[ -e /mnt/etc/zfs/zfs-list.cache/rpool && (( $(find /mnt/etc/zfs/zfs-list.cache/rpool -type f -printf '%s' 2> /dev/null) == 0 )) ]]; then  
+    chroot_execute "zfs set canmount=noauto rpool"
 
     SECONDS=0
 
     while (( SECONDS++ <= 120 )); do
-      if [[ -e "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" ]] && (( $(find "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" -type f -printf '%s' 2> /dev/null) > 0 )); then
+      if [[ -e /mnt/etc/zfs/zfs-list.cache/rpool ]] && (( $(find /mnt/etc/zfs/zfs-list.cache/rpool -type f -printf '%s' 2> /dev/null) > 0 )); then
         success=1
         break
       else
@@ -170,7 +170,7 @@ function initial_load_debian_zed_cache {
 
   chroot_execute "pkill zed"
 
-  sed -Ei "s|/$c_zfs_mount_dir/?|/|g" "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name"
+  sed -Ei 's|/mnt/?|/|g' /mnt/etc/zfs/zfs-list.cache/rpool
 }
 
 function find_suitable_disks {
@@ -400,7 +400,7 @@ function determine_kernel_variant {
 }
 
 function chroot_execute {
-  chroot $c_zfs_mount_dir bash -c "DEBIAN_FRONTEND=noninteractive $1"
+  chroot $c_zfs_mount_dir bash -c "$1"
 }
 
 function unmount_and_export_fs {
@@ -754,15 +754,13 @@ chroot_execute "echo options zfs zfs_arc_max=$((v_zfs_arc_max_mb * 1024 * 1024))
 
 echo "======= setting up grub =========="
 chroot_execute "echo 'grub-pc grub-pc/install_devices_empty   boolean true' | debconf-set-selections"
-chroot_execute "apt install --yes grub-legacy"
-chroot_execute "apt install --yes grub-pc"
-for disk in ${v_selected_disks[@]}; do
-  chroot_execute "grub-install --recheck $disk"
-done
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes grub-legacy"
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes grub-pc"
+chroot_execute "grub-install --recheck ${v_selected_disks[0]}"
 
 chroot_execute "sed -i 's/#GRUB_TERMINAL=console/GRUB_TERMINAL=console/g' /etc/default/grub"
 chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX_DEFAULT=.*|GRUB_CMDLINE_LINUX_DEFAULT=\"net.ifnames=0\"|' /etc/default/grub"
-chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=$v_rpool_name/ROOT/debian\"|g' /etc/default/grub"
+chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=rpool/ROOT/debian\"|g' /etc/default/grub"
 
 chroot_execute "sed -i 's/quiet//g' /etc/default/grub"
 chroot_execute "sed -i 's/splash//g' /etc/default/grub"
@@ -776,22 +774,21 @@ if [[ $v_encrypt_rpool == "1" ]]; then
   echo "=========set up dropbear=============="
 
   chroot_execute "apt install --yes dropbear-initramfs"
-  
-  mkdir -p "$c_zfs_mount_dir/etc/dropbear/initramfs"
-  cp /root/.ssh/authorized_keys "$c_zfs_mount_dir/etc/dropbear/initramfs/authorized_keys"
+
+  cp /root/.ssh/authorized_keys "$c_zfs_mount_dir/etc/dropbear-initramfs/authorized_keys"
 
   cp "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key" "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key_temp"
   chroot_execute "ssh-keygen -p -i -m pem -N '' -f /etc/ssh/ssh_host_rsa_key_temp"
-  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_rsa_key_temp /etc/dropbear/initramfs/dropbear_rsa_host_key"
+  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_rsa_key_temp /etc/dropbear-initramfs/dropbear_rsa_host_key"
   rm -rf "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key_temp"
 
   cp "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key" "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key_temp"
   chroot_execute "ssh-keygen -p -i -m pem -N '' -f /etc/ssh/ssh_host_ecdsa_key_temp"
-  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_ecdsa_key_temp /etc/dropbear/initramfs/dropbear_ecdsa_host_key"
+  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_ecdsa_key_temp /etc/dropbear-initramfs/dropbear_ecdsa_host_key"
   chroot_execute "rm -rf /etc/ssh/ssh_host_ecdsa_key_temp"
   rm -rf "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key_temp"
 
-  rm -rf "$c_zfs_mount_dir/etc/dropbear/initramfs/dropbear_dss_host_key"
+  rm -rf "$c_zfs_mount_dir/etc/dropbear-initramfs/dropbear_dss_host_key"
 fi
 
 echo "============setup root prompt============"
@@ -804,7 +801,6 @@ CONF
 
 echo "========running packages upgrade==========="
 chroot_execute "apt upgrade --yes"
-chroot_execute "apt purge cryptsetup* --yes"
 
 echo "===========add static route to initramfs via hook to add default routes for Hetzner due to Debian/Ubuntu initramfs DHCP bug ========="
 mkdir -p "$c_zfs_mount_dir/usr/share/initramfs-tools/scripts/init-premount"
@@ -844,7 +840,7 @@ chroot_execute "update-grub"
 
 echo "======= setting up zed =========="
 if [[ $v_zfs_experimental == "1" ]]; then
-  chroot_execute "zfs set canmount=noauto $v_rpool_name"
+  chroot_execute "zfs set canmount=noauto rpool"
 else
   initial_load_debian_zed_cache
 fi

hetzner-debian12-zfs-setup.sh

@@ -2,7 +2,7 @@
 
 : <<'end_header_info'
 (c) Andrey Prokopenko job@terem.fr
-fully automatic script to install Debian 12 with ZFS root on Hetzner VPS
+fully automatic script to install Debian 11 with ZFS root on Hetzner VPS
 WARNING: all data on the disk will be destroyed
 How to use: add SSH key to the rescue console, set it OS to linux64, then press "mount rescue and power cycle" button
 Next, connect via SSH to console, and run the script
@@ -49,7 +49,6 @@ c_log_dir=$(dirname "$(mktemp)")/zfs-hetzner-vm
 c_install_log=$c_log_dir/install.log
 c_lsb_release_log=$c_log_dir/lsb_release.log
 c_disks_log=$c_log_dir/disks.log
-c_efimode_enabled="$(if [[ -d /sys/firmware/efi/efivars ]]; then echo 1; else echo 0; fi)"
 
 function activate_debug {
   mkdir -p "$c_log_dir"
@@ -108,7 +107,7 @@ function display_intro_banner {
   print_step_info_header
 
   local dialog_message='Hello!
-This script will prepare the ZFS pools, then install and configure minimal Debian 12 with ZFS root on Hetzner hosting VPS instance
+This script will prepare the ZFS pools, then install and configure minimal Debian 11 with ZFS root on Hetzner hosting VPS instance
 The script with minimal changes may be used on any other hosting provider  supporting KVM virtualization and offering Debian-based rescue system.
 In order to stop the procedure, hit Esc twice during dialogs (excluding yes/no ones), or Ctrl+C while any operation is running.
 '
@@ -140,20 +139,20 @@ function check_prerequisites {
 
 function initial_load_debian_zed_cache {
   chroot_execute "mkdir /etc/zfs/zfs-list.cache"
-  chroot_execute "touch /etc/zfs/zfs-list.cache/$v_rpool_name"
+  chroot_execute "touch /etc/zfs/zfs-list.cache/rpool"
   chroot_execute "ln -sf /usr/lib/zfs-linux/zed.d/history_event-zfs-list-cacher.sh /etc/zfs/zed.d/"
 
   chroot_execute "zed -F &"
 
   local success=0
 
-  if [[ ! -e "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" ]] || [[ -e "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" && (( $(find "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" -type f -printf '%s' 2> /dev/null) == 0 )) ]]; then  
-    chroot_execute "zfs set canmount=noauto $v_rpool_name"
+  if [[ ! -e /mnt/etc/zfs/zfs-list.cache/rpool ]] || [[ -e /mnt/etc/zfs/zfs-list.cache/rpool && (( $(find /mnt/etc/zfs/zfs-list.cache/rpool -type f -printf '%s' 2> /dev/null) == 0 )) ]]; then  
+    chroot_execute "zfs set canmount=noauto rpool"
 
     SECONDS=0
 
     while (( SECONDS++ <= 120 )); do
-      if [[ -e "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" ]] && (( $(find "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name" -type f -printf '%s' 2> /dev/null) > 0 )); then
+      if [[ -e /mnt/etc/zfs/zfs-list.cache/rpool ]] && (( $(find /mnt/etc/zfs/zfs-list.cache/rpool -type f -printf '%s' 2> /dev/null) > 0 )); then
         success=1
         break
       else
@@ -171,7 +170,7 @@ function initial_load_debian_zed_cache {
 
   chroot_execute "pkill zed"
 
-  sed -Ei "s|/$c_zfs_mount_dir/?|/|g" "$c_zfs_mount_dir/etc/zfs/zfs-list.cache/$v_rpool_name"
+  sed -Ei 's|/mnt/?|/|g' /mnt/etc/zfs/zfs-list.cache/rpool
 }
 
 function find_suitable_disks {
@@ -401,7 +400,7 @@ function determine_kernel_variant {
 }
 
 function chroot_execute {
-  chroot $c_zfs_mount_dir bash -c "DEBIAN_FRONTEND=noninteractive $1"
+  chroot $c_zfs_mount_dir bash -c "$1"
 }
 
 function unmount_and_export_fs {
@@ -523,11 +522,7 @@ echo "======= partitioning the disk =========="
 
   for selected_disk in "${v_selected_disks[@]}"; do
     wipefs --all --force "$selected_disk"
-    if (( c_efimode_enabled == 1 )); then
-      sgdisk -a1 -n1:24K:+1G            -t1:EF00 "$selected_disk" # EFI partition
-    else
-      sgdisk -a1 -n1:24K:+1000K            -t1:EF02 "$selected_disk"
-    fi
+    sgdisk -a1 -n1:24K:+1000K            -t1:EF02 "$selected_disk"
     sgdisk -n2:0:+2G                   -t2:BF01 "$selected_disk" # Boot pool
     sgdisk -n3:0:"$tail_space_parameter" -t3:BF01 "$selected_disk" # Root pool
   done
@@ -558,8 +553,8 @@ echo "======= create zfs pools and datasets =========="
 
 # shellcheck disable=SC2086
 zpool create \
+  $v_bpool_tweaks -O canmount=off -O devices=off \
   -o cachefile=/etc/zpool.cache \
-  -o compatibility=grub2 \
   -O mountpoint=/boot -R $c_zfs_mount_dir -f \
   $v_bpool_name $pools_mirror_option "${bpool_disks_partitions[@]}"
 
@@ -611,16 +606,6 @@ if [[ $v_swap_size -gt 0 ]]; then
   mkswap -f "/dev/zvol/$v_rpool_name/swap"
 fi
 
-if (( c_efimode_enabled == 1 )); then
-echo "======= create filesystem on EFI partition(s) =========="
-
-  for selected_disk in "${v_selected_disks[@]}"; do
-    mkfs.fat -F32 "${selected_disk}-part1"
-  done
-  mkdir -p "$c_zfs_mount_dir/boot/efi"
-  mount "${v_selected_disks[0]}-part1" "$c_zfs_mount_dir/boot/efi"
-fi
-
 echo "======= setting up initial system packages =========="
 debootstrap --arch=amd64 bookworm "$c_zfs_mount_dir" "$c_deb_packages_repo"
 
@@ -645,7 +630,7 @@ CONF
 
 ip6addr_prefix=$(ip -6 a s | grep -E "inet6.+global" | sed -nE 's/.+inet6\s(([0-9a-z]{1,4}:){4,4}).+/\1/p' | head -n 1)
 
-cat <<CONF > "$c_zfs_mount_dir/etc/systemd/network/10-eth0.network"
+cat <<CONF > /mnt/etc/systemd/network/10-eth0.network
 [Match]
 Name=eth0
 
@@ -709,6 +694,7 @@ console-setup   console-setup/fontsize-text47   select  8x16
 console-setup   console-setup/codesetcode       string  Lat15
 tzdata tzdata/Areas select Europe
 tzdata tzdata/Zones/Europe select Vienna
+grub-pc grub-pc/install_devices_empty   boolean true
 CONF'
 
 chroot_execute "dpkg-reconfigure locales -f noninteractive"
@@ -760,32 +746,20 @@ chroot_execute "echo root:$(printf "%q" "$v_root_password") | chpasswd"
 
 echo "======= setting up zfs cache =========="
 
-cp /etc/zpool.cache "$c_zfs_mount_dir/etc/zfs/zpool.cache"
+cp /etc/zpool.cache /mnt/etc/zfs/zpool.cache
 
 echo "========setting up zfs module parameters========"
 chroot_execute "echo options zfs zfs_arc_max=$((v_zfs_arc_max_mb * 1024 * 1024)) >> /etc/modprobe.d/zfs.conf"
 
 echo "======= setting up grub =========="
-if (( c_efimode_enabled == 1 )); then
-  chroot_execute "apt install --yes grub-efi-amd64"
-else
-  chroot_execute "echo 'grub-pc grub-pc/install_devices_empty   boolean true' | debconf-set-selections"
-  chroot_execute "apt install --yes grub-legacy"
-  chroot_execute "apt install --yes grub-pc"
-fi
-
-if (( c_efimode_enabled == 1 )); then
-  #chroot_execute grub-probe /boot
-  chroot_execute grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=debian --recheck
-else
-  for disk in ${v_selected_disks[@]}; do
-    chroot_execute "grub-install --recheck $disk"
-  done
-fi
+chroot_execute "echo 'grub-pc grub-pc/install_devices_empty   boolean true' | debconf-set-selections"
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes grub-legacy"
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes grub-pc"
+chroot_execute "grub-install --recheck ${v_selected_disks[0]}"
 
 chroot_execute "sed -i 's/#GRUB_TERMINAL=console/GRUB_TERMINAL=console/g' /etc/default/grub"
 chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX_DEFAULT=.*|GRUB_CMDLINE_LINUX_DEFAULT=\"net.ifnames=0\"|' /etc/default/grub"
-chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=$v_rpool_name/ROOT/debian\"|g' /etc/default/grub"
+chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=rpool/ROOT/debian\"|g' /etc/default/grub"
 
 chroot_execute "sed -i 's/quiet//g' /etc/default/grub"
 chroot_execute "sed -i 's/splash//g' /etc/default/grub"
@@ -799,22 +773,21 @@ if [[ $v_encrypt_rpool == "1" ]]; then
   echo "=========set up dropbear=============="
 
   chroot_execute "apt install --yes dropbear-initramfs"
-  
-  mkdir -p "$c_zfs_mount_dir/etc/dropbear/initramfs"
-  cp /root/.ssh/authorized_keys "$c_zfs_mount_dir/etc/dropbear/initramfs/authorized_keys"
+
+  cp /root/.ssh/authorized_keys "$c_zfs_mount_dir/etc/dropbear-initramfs/authorized_keys"
 
   cp "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key" "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key_temp"
   chroot_execute "ssh-keygen -p -i -m pem -N '' -f /etc/ssh/ssh_host_rsa_key_temp"
-  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_rsa_key_temp /etc/dropbear/initramfs/dropbear_rsa_host_key"
+  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_rsa_key_temp /etc/dropbear-initramfs/dropbear_rsa_host_key"
   rm -rf "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key_temp"
 
   cp "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key" "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key_temp"
   chroot_execute "ssh-keygen -p -i -m pem -N '' -f /etc/ssh/ssh_host_ecdsa_key_temp"
-  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_ecdsa_key_temp /etc/dropbear/initramfs/dropbear_ecdsa_host_key"
+  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_ecdsa_key_temp /etc/dropbear-initramfs/dropbear_ecdsa_host_key"
   chroot_execute "rm -rf /etc/ssh/ssh_host_ecdsa_key_temp"
   rm -rf "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key_temp"
 
-  rm -rf "$c_zfs_mount_dir/etc/dropbear/initramfs/dropbear_dss_host_key"
+  rm -rf "$c_zfs_mount_dir/etc/dropbear-initramfs/dropbear_dss_host_key"
 fi
 
 echo "============setup root prompt============"
@@ -831,7 +804,7 @@ cp /root/.ssh/authorized_keys "$c_zfs_mount_dir/root/.ssh/authorized_keys"
 
 echo "========running packages upgrade and autoremove==========="
 chroot_execute "apt upgrade --yes"
-chroot_execute "apt purge cryptsetup* --yes"
+chroot_execute "apt autoremove --yes"
 
 echo "===========add static route to initramfs via hook to add default routes for Hetzner due to Debian/Ubuntu initramfs DHCP bug ========="
 mkdir -p "$c_zfs_mount_dir/usr/share/initramfs-tools/scripts/init-premount"
@@ -866,23 +839,17 @@ chmod 755 "$c_zfs_mount_dir/etc/network/interfaces"
 echo "======= update initramfs =========="
 chroot_execute "update-initramfs -u -k all"
 
-chroot_execute "apt remove cryptsetup* --yes"
-
 echo "======= update grub =========="
 chroot_execute "update-grub"
 
 echo "======= setting up zed =========="
 if [[ $v_zfs_experimental == "1" ]]; then
-  chroot_execute "zfs set canmount=noauto $v_rpool_name"
+  chroot_execute "zfs set canmount=noauto rpool"
 else
   initial_load_debian_zed_cache
 fi
 
 echo "======= setting mountpoints =========="
-if (( c_efimode_enabled == 1 )); then
-  umount "$c_zfs_mount_dir/boot/efi"
-fi
-
 chroot_execute "zfs set mountpoint=legacy $v_bpool_name/BOOT/debian"
 chroot_execute "echo $v_bpool_name/BOOT/debian /boot zfs nodev,relatime,x-systemd.requires=zfs-mount.service,x-systemd.device-timeout=10 0 0 > /etc/fstab"
 

hetzner-ubuntu18-zfs-setup.sh

@@ -366,7 +366,7 @@ function determine_kernel_variant {
 }
 
 function chroot_execute {
-  chroot $c_zfs_mount_dir bash -c "DEBIAN_FRONTEND=noninteractive $1"
+  chroot $c_zfs_mount_dir bash -c "$1"
 }
 
 function unmount_and_export_fs {
@@ -685,10 +685,10 @@ chroot_execute "rm -f /etc/localtime /etc/timezone"
 chroot_execute "dpkg-reconfigure tzdata -f noninteractive "
 
 echo "======= installing latest kernel============="
-chroot_execute "apt install --yes linux-headers${v_kernel_variant}-hwe-18.04 linux-image${v_kernel_variant}-hwe-18.04"
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes linux-headers${v_kernel_variant}-hwe-18.04 linux-image${v_kernel_variant}-hwe-18.04"
 if [[ $v_kernel_variant == "-virtual" ]]; then
   # linux-image-extra is only available for virtual hosts
-  chroot_execute "apt install --yes linux-image-extra-virtual-hwe-18.04"
+  chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes linux-image-extra-virtual-hwe-18.04"
 fi
 
 echo "======= installing aux packages =========="
@@ -736,14 +736,12 @@ chroot_execute "echo options zfs zfs_arc_max=$((v_zfs_arc_max_mb * 1024 * 1024))
 
 echo "======= setting up grub =========="
 chroot_execute "echo 'grub-pc grub-pc/install_devices_empty   boolean true' | debconf-set-selections"
-chroot_execute "apt install --yes grub-pc"
-for disk in ${v_selected_disks[@]}; do
-  chroot_execute "grub-install $disk"
-done
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes grub-pc"
+chroot_execute "grub-install ${v_selected_disks[0]}"
 
 chroot_execute "sed -i 's/#GRUB_TERMINAL=console/GRUB_TERMINAL=console/g' /etc/default/grub"
 chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX_DEFAULT=.*|GRUB_CMDLINE_LINUX_DEFAULT=\"net.ifnames=0\"|' /etc/default/grub"
-chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=$v_rpool_name/ROOT/ubuntu\"|g' /etc/default/grub"
+chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=rpool/ROOT/ubuntu\"|g' /etc/default/grub"
 
 chroot_execute "sed -i 's/quiet//g' /etc/default/grub"
 chroot_execute "sed -i 's/splash//g' /etc/default/grub"
@@ -771,6 +769,18 @@ if [[ $v_encrypt_rpool == "1" ]]; then
   rm -rf "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key_temp"
 
   rm -rf "$c_zfs_mount_dir/etc/dropbear-initramfs/dropbear_dss_host_key"
+
+  cd "$c_zfs_mount_dir/root"
+  wget http://ftp.de.debian.org/debian/pool/main/libt/libtommath/libtommath1_1.1.0-3_amd64.deb
+  wget http://ftp.de.debian.org/debian/pool/main/d/dropbear/dropbear-bin_2018.76-5_amd64.deb
+  wget http://ftp.de.debian.org/debian/pool/main/d/dropbear/dropbear-initramfs_2018.76-5_all.deb
+
+  chroot_execute "dpkg -i /root/libtommath1_1.1.0-3_amd64.deb"
+  chroot_execute "dpkg -i /root/dropbear-bin_2018.76-5_amd64.deb"
+  chroot_execute "dpkg -i /root/dropbear-initramfs_2018.76-5_all.deb"
+
+  rm $c_zfs_mount_dir/root/*.deb
+  cd /root
 fi
 
 echo "============setup root prompt============"
@@ -783,7 +793,6 @@ CONF
 
 echo "========running packages upgrade==========="
 chroot_execute "apt upgrade --yes"
-chroot_execute "apt purge cryptsetup* --yes"
 
 echo "===========add static route to initramfs via hook to add default routes due to Ubuntu initramfs DHCP bug ========="
 mkdir -p "$c_zfs_mount_dir/usr/share/initramfs-tools/scripts/init-premount"
@@ -807,8 +816,8 @@ esac
 
 configure_networking
 
-ip route add 172.31.1.1/255.255.255.255 dev eth0
-ip route add default via 172.31.1.1 dev eth0
+ip route add 172.31.1.1/255.255.255.255 dev ens3
+ip route add default via 172.31.1.1 dev ens3
 CONF
 
 chmod 755 "$c_zfs_mount_dir/usr/share/initramfs-tools/scripts/init-premount/static-route"
@@ -821,7 +830,7 @@ chroot_execute "update-grub"
 
 echo "======= setting up zed =========="
 
-chroot_execute "zfs set canmount=noauto $v_rpool_name"
+chroot_execute "zfs set canmount=noauto rpool"
 
 echo "======= setting mountpoints =========="
 chroot_execute "zfs set mountpoint=legacy $v_bpool_name/BOOT/ubuntu"

hetzner-ubuntu20-zfs-setup.sh

@@ -366,7 +366,7 @@ function determine_kernel_variant {
 }
 
 function chroot_execute {
-  chroot $c_zfs_mount_dir bash -c "DEBIAN_FRONTEND=noninteractive $1"
+  chroot $c_zfs_mount_dir bash -c "$1"
 }
 
 function unmount_and_export_fs {
@@ -685,10 +685,10 @@ chroot_execute "rm -f /etc/localtime /etc/timezone"
 chroot_execute "dpkg-reconfigure tzdata -f noninteractive "
 
 echo "======= installing latest kernel============="
-chroot_execute "apt install --yes linux-headers${v_kernel_variant} linux-image${v_kernel_variant}"
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes linux-headers${v_kernel_variant} linux-image${v_kernel_variant}"
 if [[ $v_kernel_variant == "-virtual" ]]; then
   # linux-image-extra is only available for virtual hosts
-  chroot_execute "apt install --yes linux-image-extra-virtual"
+  chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes linux-image-extra-virtual"
 fi
 
 
@@ -737,14 +737,12 @@ chroot_execute "echo options zfs zfs_arc_max=$((v_zfs_arc_max_mb * 1024 * 1024))
 
 echo "======= setting up grub =========="
 chroot_execute "echo 'grub-pc grub-pc/install_devices_empty   boolean true' | debconf-set-selections"
-chroot_execute "apt install --yes grub-pc"
-for disk in ${v_selected_disks[@]}; do
-  chroot_execute "grub-install $disk"
-done
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes grub-pc"
+chroot_execute "grub-install ${v_selected_disks[0]}"
 
 chroot_execute "sed -i 's/#GRUB_TERMINAL=console/GRUB_TERMINAL=console/g' /etc/default/grub"
 chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX_DEFAULT=.*|GRUB_CMDLINE_LINUX_DEFAULT=\"net.ifnames=0\"|' /etc/default/grub"
-chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=$v_rpool_name/ROOT/ubuntu\"|g' /etc/default/grub"
+chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=rpool/ROOT/ubuntu\"|g' /etc/default/grub"
 
 chroot_execute "sed -i 's/quiet//g' /etc/default/grub"
 chroot_execute "sed -i 's/splash//g' /etc/default/grub"
@@ -757,7 +755,7 @@ done
 if [[ $v_encrypt_rpool == "1" ]]; then
   echo "=========set up dropbear=============="
   chroot_execute "apt install --yes dropbear-initramfs"
-  
+
   cp /root/.ssh/authorized_keys "$c_zfs_mount_dir/etc/dropbear-initramfs/authorized_keys"
 
   cp "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key" "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key_temp"
@@ -796,7 +794,6 @@ CONF
 
 echo "========running packages upgrade==========="
 chroot_execute "apt upgrade --yes"
-chroot_execute "apt purge cryptsetup* --yes"
 
 echo "===========add static route to initramfs via hook to add default routes due to Ubuntu initramfs DHCP bug ========="
 mkdir -p "$c_zfs_mount_dir/usr/share/initramfs-tools/scripts/init-premount"
@@ -834,7 +831,7 @@ chroot_execute "update-grub"
 
 echo "======= setting up zed =========="
 
-chroot_execute "zfs set canmount=noauto $v_rpool_name"
+chroot_execute "zfs set canmount=noauto rpool"
 
 echo "======= setting mountpoints =========="
 chroot_execute "zfs set mountpoint=legacy $v_bpool_name/BOOT/ubuntu"

hetzner-ubuntu22-zfs-setup.sh

@@ -366,7 +366,7 @@ function determine_kernel_variant {
 }
 
 function chroot_execute {
-  chroot $c_zfs_mount_dir bash -c "DEBIAN_FRONTEND=noninteractive $1"
+  chroot $c_zfs_mount_dir bash -c "$1"
 }
 
 function unmount_and_export_fs {
@@ -685,10 +685,10 @@ chroot_execute "rm -f /etc/localtime /etc/timezone"
 chroot_execute "dpkg-reconfigure tzdata -f noninteractive "
 
 echo "======= installing latest kernel============="
-chroot_execute "apt install --yes linux-headers${v_kernel_variant} linux-image${v_kernel_variant}"
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes linux-headers${v_kernel_variant} linux-image${v_kernel_variant}"
 if [[ $v_kernel_variant == "-virtual" ]]; then
   # linux-image-extra is only available for virtual hosts
-  chroot_execute "apt install --yes linux-image-extra-virtual"
+  chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes linux-image-extra-virtual"
 fi
 
 
@@ -737,14 +737,12 @@ chroot_execute "echo options zfs zfs_arc_max=$((v_zfs_arc_max_mb * 1024 * 1024))
 
 echo "======= setting up grub =========="
 chroot_execute "echo 'grub-pc grub-pc/install_devices_empty   boolean true' | debconf-set-selections"
-chroot_execute "apt install --yes grub-pc"
-for disk in ${v_selected_disks[@]}; do
-  chroot_execute "grub-install $disk"
-done
+chroot_execute "DEBIAN_FRONTEND=noninteractive apt install --yes grub-pc"
+chroot_execute "grub-install ${v_selected_disks[0]}"
 
 chroot_execute "sed -i 's/#GRUB_TERMINAL=console/GRUB_TERMINAL=console/g' /etc/default/grub"
 chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX_DEFAULT=.*|GRUB_CMDLINE_LINUX_DEFAULT=\"net.ifnames=0\"|' /etc/default/grub"
-chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=$v_rpool_name/ROOT/ubuntu\"|g' /etc/default/grub"
+chroot_execute "sed -i 's|GRUB_CMDLINE_LINUX=\"\"|GRUB_CMDLINE_LINUX=\"root=ZFS=rpool/ROOT/ubuntu\"|g' /etc/default/grub"
 
 chroot_execute "sed -i 's/quiet//g' /etc/default/grub"
 chroot_execute "sed -i 's/splash//g' /etc/default/grub"
@@ -757,22 +755,33 @@ done
 if [[ $v_encrypt_rpool == "1" ]]; then
   echo "=========set up dropbear=============="
   chroot_execute "apt install --yes dropbear-initramfs"
-  
-  mkdir -p "$c_zfs_mount_dir/etc/dropbear/initramfs"
-  cp /root/.ssh/authorized_keys "$c_zfs_mount_dir/etc/dropbear/initramfs/authorized_keys"
+
+  cp /root/.ssh/authorized_keys "$c_zfs_mount_dir/etc/dropbear-initramfs/authorized_keys"
 
   cp "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key" "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key_temp"
   chroot_execute "ssh-keygen -p -i -m pem -N '' -f /etc/ssh/ssh_host_rsa_key_temp"
-  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_rsa_key_temp /etc/dropbear/initramfs/dropbear_rsa_host_key"
+  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_rsa_key_temp /etc/dropbear-initramfs/dropbear_rsa_host_key"
   rm -rf "$c_zfs_mount_dir/etc/ssh/ssh_host_rsa_key_temp"
 
   cp "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key" "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key_temp"
   chroot_execute "ssh-keygen -p -i -m pem -N '' -f /etc/ssh/ssh_host_ecdsa_key_temp"
-  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_ecdsa_key_temp /etc/dropbear/initramfs/dropbear_ecdsa_host_key"
+  chroot_execute "/usr/lib/dropbear/dropbearconvert openssh dropbear /etc/ssh/ssh_host_ecdsa_key_temp /etc/dropbear-initramfs/dropbear_ecdsa_host_key"
   chroot_execute "rm -rf /etc/ssh/ssh_host_ecdsa_key_temp"
   rm -rf "$c_zfs_mount_dir/etc/ssh/ssh_host_ecdsa_key_temp"
 
-  rm -rf "$c_zfs_mount_dir/etc/dropbear/initramfs/dropbear_dss_host_key"
+  rm -rf "$c_zfs_mount_dir/etc/dropbear-initramfs/dropbear_dss_host_key"
+
+  cd "$c_zfs_mount_dir/root"
+  wget http://ftp.de.debian.org/debian/pool/main/libt/libtommath/libtommath1_1.2.0-6_amd64.deb
+  wget http://ftp.de.debian.org/debian/pool/main/d/dropbear/dropbear-bin_2020.81-3_amd64.deb
+  wget http://ftp.de.debian.org/debian/pool/main/d/dropbear/dropbear-initramfs_2020.81-3_all.deb
+
+  chroot_execute "dpkg -i /root/libtommath1_1.2.0-6_amd64.deb"
+  chroot_execute "dpkg -i /root/dropbear-bin_2020.81-3_amd64.deb"
+  chroot_execute "dpkg -i /root/dropbear-initramfs_2020.81-3_all.deb"
+
+  rm $c_zfs_mount_dir/root/*.deb
+  cd /root
 fi
 
 echo "============setup root prompt============"
@@ -785,7 +794,6 @@ CONF
 
 echo "========running packages upgrade==========="
 chroot_execute "apt upgrade --yes"
-chroot_execute "apt purge cryptsetup* --yes"
 
 echo "===========add static route to initramfs via hook to add default routes due to Ubuntu initramfs DHCP bug ========="
 mkdir -p "$c_zfs_mount_dir/usr/share/initramfs-tools/scripts/init-premount"
@@ -823,7 +831,7 @@ chroot_execute "update-grub"
 
 echo "======= setting up zed =========="
 
-chroot_execute "zfs set canmount=noauto $v_rpool_name"
+chroot_execute "zfs set canmount=noauto rpool"
 
 echo "======= setting mountpoints =========="
 chroot_execute "zfs set mountpoint=legacy $v_bpool_name/BOOT/ubuntu"