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

   1 #!/bin/bash -x
   2
   3 # see t.org for how to call
   4
   5 set -eE -o pipefail
   6 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?"' ERR
   7
   8 cd $(dirname $(readlink -f "$BASH_SOURCE"))
   9
  10 export ROOTPW="$1"
  11 export hostname="$2"
  12 mirror=$3
  13
  14 (( $# >= 2 )) || { echo "error: need 2 arguments"; exit 1; }
  15
  16 case $hostname in
  17     x2)
  18         export grubdisk=/dev/sda
  19         ;;
  20     demohost)
  21         export grubdisk=/dev/vda
  22         ;;
  23     treetowl)
  24         bootid=64d495ee-c9fe-4174-b20a-6c5e47abcfa1
  25         export grubdisk=$(blkid|sed -nr "/$bootid/s/^([^0-9]+).*/\1/p")
  26         ;;
  27     frodo)
  28         rootid=e9ce7b46-9a21-4e79-b7f7-0b18acb57587
  29         export grubdisk=$(blkid|sed -nr "/$rootid/s/(^[^0-9]*).*/\1/p")
  30         ;;
  31     *)
  32         echo "unrecognized hostname: $hostname"
  33         exit 1
  34 esac
  35
  36
  37 rm -f /etc/pacman.d/mirrorlist
  38 # https://wiki.archlinux.org/index.php/Mirrors#Sorting_mirrors
  39
  40 if [[ $mirror ]]; then
  41     echo "Server = $mirror" >> /etc/pacman.d/mirrorlist
  42 fi
  43 curl -s 'https://www.archlinux.org/mirrorlist/?country=US&protocol=https&ip_version=4&ip_version=6&use_mirror_status=on' |
  44     sed -r 's/^[ #]*(Server *=)/\1/' >> /etc/pacman.d/mirrorlist
  45
  46 ifclass() {
  47     local var=${1/#/CLASS_}
  48     [[ $hostname == $1 || ${!var} ]]
  49 }
  50 export -f ifclass
  51 for x in $(bash 50-host-classes); do
  52     export CLASS_$x=true
  53 done
  54
  55 export LUKS_DIR=/root/luks
  56 export HOSTNAME=$hostname
  57 chmod +x partition.DEFAULT
  58 ./partition.DEFAULT
  59 # arch doesn't need crypttab entries for initramfs crypt partititions
  60 sed -ri '/^crypt_dev/d' /tmp/fai/crypttab
  61 mount -o subvol=/root /dev/mapper/crypt_dev_?da3 /mnt
  62 mkdir -p /mnt/{q,home}
  63 mount -o subvol=/q /dev/mapper/crypt_dev_?da3 /mnt/q
  64 mount -o subvol=/home /dev/mapper/crypt_dev_?da3 /mnt/home
  65 mkdir -p /mnt/etc
  66 cp /tmp/fai/{fstab,crypttab} /mnt/etc
  67 mkdir -p /mnt/boot
  68 mount /dev/?da1 /mnt/boot
  69
  70 # https://wiki.archlinux.org/index.php/Dm-crypt/Device_encryption#Keyfiles
  71 cp /root/luks/host-$hostname /mnt/crypto_keyfile.bin
  72 chmod 600 /mnt/crypto_keyfile.bin
  73
  74
  75 shopt -s extglob
  76 case $hostname in
  77     # these hosts are broken, not updated to new fai hyrbrid scripts.
  78     frodo)
  79
  80         # for this system, no separate /boot, to keep partitions simple,
  81         # since we want simpler backup recovery.
  82         mount -U $rootid /mnt
  83         ;;&
  84     treetowl)
  85         mount /dev/mapper/vg_treetowl00-lv02 /mnt
  86         mount -U $bootid /mnt/boot
  87         ;;&
  88     frodo|treetowl)
  89         rm -rf /mnt/!(a|i|q|f|boot) /mnt/boot/*
  90         ;;
  91 esac
  92
  93
  94
  95 if [[ $mirror ]]; then
  96     echo "$0: 404 errors about core.db etc are normal,
  97 they will succeed using the secodary mirror"
  98 fi
  99 pacstrap /mnt base
 100 case $hostname in
 101     frodo)
 102         # the root .ssh needs to be like this,
 103         # because it\'s used to get the key to mount an encrypted filesystem
 104         # on top of itself.
 105         d=/mnt/q/root/.ssh
 106         rm -rf $d # for idempotency
 107         mkdir -p $d
 108         scp -oStrictHostKeyChecking=no ian@treetowl:/a/c/machine_specific/frodo/subdir_files/.ssh/* $d
 109         cp .ssh/* $d
 110         ln -s /q/root/.ssh /mnt/root
 111         # background: errors=remount-ro is a debian installer thing. seems like
 112         # not a bad idea. man mount says: The default is set in the filesystem
 113         # superblock, and can be changed using tune2fs(8)
 114
 115         cat > /mnt/etc/fstab <<'EOF'
 116 UUID=e9ce7b46-9a21-4e79-b7f7-0b18acb57587  /  ext4  noatime,errors=remount-ro  0  1
 117 UUID=dd67766f-93c5-4ce3-9877-a1d9841dd4a4  none  swap  sw  0  0
 118 /dev/sr0  /media/cdrom0  udf,iso9660 user,noauto  0  0
 119 /dev/mapper/crypta7  /mnt/btrfs_root  btrfs  subvolid=0,noatime,noauto  0  2
 120 /dev/mapper/crypta7  /a  btrfs  subvol=a,noatime,noauto  0  2
 121 EOF
 122         ;;
 123     *)
 124         genfstab -p /mnt > /mnt/etc/fstab
 125         cp -r .ssh /mnt/root
 126         cp -r /root/distro-install-common /mnt/root
 127         ;;&
 128     treetowl)
 129         echo "UUID=a9e83bb7-d23d-4de6-ba9f-d88b887f7206  /a  ext4  noatime  0 2" >> /mnt/etc/fstab
 130         ;;
 131 esac
 132
 133 cp /root/arch-init-chroot /mnt/root
 134 # for manual commands, arch-chroot /mnt bash
 135 arch-chroot /mnt /root/arch-init-chroot
 136
 137 # this gets mounted in chroot so we have to do it outside
 138 rm -f /mnt/etc/resolv.conf
 139 ln -s /run/systemd/resolve/resolv.conf /mnt/etc/resolv.conf
 140
 141 # not necsesary, but makes reboot go fast.
 142 umount -R /mnt
 143
 144 # causes 255 exit code, so doing this from the caller script.
 145 # reboot now