iankelling.org Git - automated-distro-installer/blob - fai/config/files/root/fai-check/STABLE_BOOTSTRAP

   1 #!/bin/bash
   2
   3 set -eE -o pipefail
   4 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
   5
   6 # keep it short so we don't delay too much wnen we don't have networking.
   7 NETWORK_TIMOUT_SECS=10
   8 fai_check=false
   9 check-fai() {
  10     # we could just as well check if last_boot != /debianstable_boostrap
  11     # the intent with this one is just a little clearer.
  12     if [[ $did_fai_check == true ]]; then
  13         fai_check=true
  14         # ref: https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/
  15         deadline=$(( `date +%s` + NETWORK_TIMOUT_SECS ))
  16         while ! systemctl status network-online.target && \
  17                 (( `date +%s` < deadline )); do
  18             sleep 1
  19         done
  20         pxe-kexec -n --ignore-whitelist -l fai-generated faiserver ||:
  21     else
  22         return 0
  23     fi
  24 }
  25
  26 first=true
  27 for dev in $(btrfs fi show / | sed -rn 's#^\s*devid\s.*\s([^0-9 ]+)\S+$#\1#p' \
  28                  |sort); do
  29     dev+=4
  30     mount $dev /mnt
  31     if $first; then
  32         if [[ -e /mnt/grubenv ]]; then
  33             source <(grub-editenv /mnt/grubenv list)
  34         fi
  35         first=false
  36         check-fai
  37     else
  38         # we make sure there is only 1 grubenv,
  39         # so grub can just find the first one, in whatever order
  40         # if looks at them, which may not be the same as us.
  41         # If the disk dies, we just lose the default boot option,
  42         # we will have to do manual steps to replace it anyways.
  43         rm -f /mnt/gruvenv
  44     fi
  45     umount /mnt
  46 done
  47
  48 if $fai_check && [[ $last_boot != /debianstable_boostrap ]]; then
  49     # no need to reboot if we actually want to boot into this os.
  50     reboot
  51 fi