iankelling.org Git - distro-setup/blob - zboot

   1 #!/bin/bash
   2 # I, Ian Kelling, follow the GNU license recommendations at
   3 # https://www.gnu.org/licenses/license-recommendations.en.html. They
   4 # recommend that small programs, < 300 lines, be licensed under the
   5 # Apache License 2.0. This file contains or is part of one or more small
   6 # programs. If a small program grows beyond 300 lines, I plan to switch
   7 # its license to GPL.
   8
   9 # Copyright 2024 Ian Kelling
  10
  11 # Licensed under the Apache License, Version 2.0 (the "License");
  12 # you may not use this file except in compliance with the License.
  13 # You may obtain a copy of the License at
  14
  15 #     http://www.apache.org/licenses/LICENSE-2.0
  16
  17 # Unless required by applicable law or agreed to in writing, software
  18 # distributed under the License is distributed on an "AS IS" BASIS,
  19 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20 # See the License for the specific language governing permissions and
  21 # limitations under the License.
  22
  23
  24 [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
  25
  26 set -e; . /usr/local/lib/bash-bear; set +e
  27
  28
  29 # Explaining this whole thing. The host amy is used by someone else,
  30 # i back it up to my extra big partition on one computer.
  31 # But I also want to restore it and test out the restoration on
  32 # a computer I usually use. For this, I created a separate partition
  33 # that has the amy encryption password, and a separate boot so
  34 # that I could encrypt my own boot partition if I want. Then,
  35 # I backup from this big partition into that partition in order
  36 # to boot and run it.
  37 #
  38 ## In order to boot and run it:
  39
  40 set -x
  41
  42 if [[ ! -e /mnt/root/root2-fstab || ! -e /mnt/root/root2-crypttab ]]; then
  43   echo $0: "error: create /mnt/root/root2-fstab & /mnt/root/root2-crypttab from running /a/bin/fai/fai/config/hooks/partition.DEFAULT mkroot2 or mkroot2tab"
  44   exit 1
  45 fi
  46
  47 mount -o bind /mnt/root2/root_ubuntubionic /mnt/1
  48 cd /mnt/1
  49 /b/ds/gen-amy-fstab ubuntubionic .
  50 teeu /mnt/1/etc/default/grub <<<'GRUB_DISABLE_OS_PROBER=true'
  51 mount -o bind /mnt/boot2/boot_ubuntubionic boot
  52 mount -o bind /dev dev
  53 mount -o bind /proc proc
  54 mount -o bind /sys sys
  55 mkdir -p boot/efi
  56 mount "$(awk '$2 == "/boot/efi" {print $1}' /etc/mtab)" boot/efi
  57
  58 cp /b/ds/zboot-chroot ./root
  59
  60 chroot . ./root/zboot-chroot
  61
  62 echo "check output and reboot"