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 fai_check=false
   7 check-fai() {
   8     # we could just as well check if last_boot != /debianstable_boostrap
   9     # the intent with this one is just a little clearer.
  10     if [[ $did_fai_check == true ]]; then
  11         fai_check=true
  12         pxe-kexec -n --ignore-whitelist -l fai-generated faiserver ||:
  13     else
  14         return 0
  15     fi
  16 }
  17
  18 first=true
  19 for dev in $(btrfs fi show / | sed -rn 's#^\s*devid\s.*\s([^0-9 ]+)\S+$#\1#p' \
  20                  |sort); do
  21     dev+=4
  22     mount $dev /mnt
  23     if $first; then
  24         if [[ -e /mnt/grubenv ]]; then
  25             source <(grub-editenv /mnt/grubenv list)
  26         fi
  27         first=false
  28         check-fai
  29     else
  30         # we make sure there is only 1 grubenv,
  31         # so grub can just find the first one, in whatever order
  32         # if looks at them, which may not be the same as us.
  33         # If the disk dies, we just lose the default boot option,
  34         # we will have to do manual steps to replace it anyways.
  35         rm -f /mnt/gruvenv
  36     fi
  37     umount /mnt
  38 done
  39
  40 if $fai_check && [[ $last_boot != /debianstable_boostrap ]]; then
  41     # no need to reboot if we actually want to boot into this os.
  42     reboot
  43 fi