iankelling.org Git - automated-distro-installer/blob - arch-init

   1 #!/bin/bash -x
   2 # Copyright (C) 2016 Ian Kelling
   3
   4 # This program is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU General Public License
   6 # as published by the Free Software Foundation; either version 2
   7 # of the License, or (at your option) any later version.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17
  18 set -eE -o pipefail
  19 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  20
  21 x="$(readlink -f "$BASH_SOURCE")"; cd ${x%/*}
  22
  23 export HOSTNAME="$1"
  24 mirror=$2
  25
  26 (( $# >= 1 )) || { echo "$0: error: need 1 or 2 arguments"; exit 1; }
  27
  28 rm -f /etc/pacman.d/mirrorlist
  29 # https://wiki.archlinux.org/index.php/Mirrors#Sorting_mirrors
  30
  31 if [[ $mirror ]]; then
  32     echo "Server = $mirror" >> /etc/pacman.d/mirrorlist
  33 fi
  34 curl -s 'https://www.archlinux.org/mirrorlist/?country=US&protocol=https&ip_version=4&ip_version=6&use_mirror_status=on' |
  35     sed -r 's/^[ #]*(Server *=)/\1/' >> /etc/pacman.d/mirrorlist
  36
  37 . /a/bin/fai/fai-wrapper
  38 export LUKS_DIR=/root/luks
  39 export DISTRO=arch
  40 partition_script=/a/bin/fai/fai/config/hooks/partition.DEFAULT
  41 chmod +x $partition_script
  42
  43 export PARTITION_PROMPT=true
  44
  45 # to be idempotent if we fail after partitioning
  46 already_partitioned=true
  47 mount_out=$(mount)
  48 for dir in /mnt{,/home,/boot,/a}; do
  49     regex=" on $dir "
  50     if [[ ! $mount_out =~ $regex ]]; then
  51         already_partitioned=false
  52         break
  53     fi
  54 done
  55
  56 if ! $already_partitioned; then
  57     /a/bin/fai/fai/config/hooks/partition.DEFAULT
  58 fi
  59
  60 . /tmp/fai/disk_var.sh
  61
  62
  63 # arch doesn't need crypttab entries for initramfs crypt partititions
  64 export rootn=1
  65 export bootn=3
  66 export swapn=2
  67 export BOOT_DEVICE
  68 export ROOT_PARTITIONS
  69 sed -ri --follow-symlinks "/^crypt_dev_\S+$rootn /d" /tmp/fai/crypttab
  70
  71 if ! $already_partitioned; then
  72     mount -o subvol=root_$DISTRO $ROOT_PARTITION /mnt
  73     mkdir -p /mnt/boot
  74     mount -o subvol=boot_$DISTRO $BOOT_PARTITION /mnt/boot
  75 fi
  76
  77 # https://wiki.archlinux.org/index.php/Dm-crypt/Device_encryption#Keyfiles
  78 cp /root/luks/host-$HOSTNAME /mnt/crypto_keyfile.bin
  79 chmod 600 /mnt/crypto_keyfile.bin
  80
  81
  82 if [[ $mirror ]]; then
  83     echo "$0: 404 errors about core.db etc are normal,
  84 they will succeed using the secodary mirror"
  85 fi
  86 pacstrap /mnt base
  87 cp /tmp/fai/{fstab,crypttab} /mnt/etc
  88 cp /a/bin/fai/encrypt /mnt/usr/lib/initcpio/hooks
  89
  90 cp -r /root/.ssh /mnt/root
  91
  92 bindmount() {
  93     local mountpoint=$2
  94     local source=$1
  95     mkdir -p $mountpoint
  96     mount -o bind $source $mountpoint
  97 }
  98 bindmount /root/shadow /mnt/q/root/shadow
  99 bindmount /a /mnt/a
 100
 101 mkdir -p /mnt/etc/ssh
 102 cp /etc/ssh/ssh_host_* /mnt/etc/ssh
 103
 104 cp /a/bin/fai/arch-init-chroot /mnt/root
 105 # for manual commands, arch-chroot /mnt bash
 106 arch-chroot /mnt /root/arch-init-chroot
 107
 108 # this gets mounted in chroot so we have to do it outside
 109 rm -f /mnt/etc/resolv.conf
 110 ln -s /run/systemd/resolve/resolv.conf /mnt/etc/resolv.conf
 111
 112 # not necsesary, but makes reboot go fast.
 113 umount -R /mnt; sleep 1
 114
 115 # causes 255 exit code, so doing this from the caller script.
 116 # reboot now