iankelling.org Git - automated-distro-installer/blob - debian-preseed

   1 #!/bin/bash
   2
   3 set -eE -o pipefail
   4 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
   5
   6 usage() {
   7     cat <<EOF
   8 Usage: ${0##*/} OPTIONS
   9
  10 Given a tftproot, setup a preseed in it.
  11
  12 -c            Disable ssh network console. ssh user = installer. pw = test.
  13 -d            Do debian ubuntu 14.04, default is jessie.
  14 -g GRUB_DISK  Default is sda. Not used in interactive partitioning.
  15 -h|--help     Print this help
  16 -i TFTP_IP    Ip of tftp server. this is required.
  17 -p            Stop for interactive partitioning.
  18 -t DIR        Tftp root. Default is current dir.
  19 -u USER       Username for the os install. Default is ${SUDO_USER:-$USER}
  20
  21 EOF
  22     exit $1
  23 }
  24
  25 interactive_partition=false
  26 user=${SUDO_USER:-$USER}
  27 distro=debian-jessie
  28 net_console=false
  29 grub_disk=sda
  30 while [[ $1 == -* ]]; do
  31     case $1 in
  32         -c) net_console=false; shift ;;
  33         -d) distro=ubuntu-14.04; shift ;;
  34         -g) grub_disk=$2; shift 2 ;;
  35         -i) ip=$2; shift 2 ;;
  36         -p) interactive_partition=true; shift ;;
  37         -t) cd $2; shift 2;;
  38         -u) user=$2; shift 2;;
  39         --) shift; break ;;
  40         -*|-h|--help) usage ;;
  41     esac
  42 done
  43
  44
  45 shopt -s extglob
  46 rm -rf !(netboot.tar.gz)
  47 preseed=example-preseed.txt
  48 neboot_path=main/installer-amd64/current/images/netboot/netboot.tar.gz
  49 case $distro in
  50     ubuntu-14.04)
  51         wget -q https://help.ubuntu.com/lts/installation-guide/$preseed
  52         wget -qN http://archive.ubuntu.com/ubuntu/dists/trusty/$neboot_path
  53         sed -ri --follow-symlinks 's!^tasksel tasksel/first multiselect .*!#\0!' $preseed
  54         echo 'tasksel tasksel/first multiselect ubuntu-server, openssh-server' >>$preseed
  55         ;;
  56     debian-jessie)
  57         wget -q https://www.debian.org/releases/jessie/$preseed
  58         wget -qN http://ftp.nl.debian.org/debian/dists/jessie/$neboot_path
  59         cat >>$preseed <<'EOF'
  60 tasksel tasksel/first multiselect ssh-server
  61 EOF
  62         if ! $interactive_partition; then
  63             cat >>$preseed <<EOF
  64 d-i grub-installer/bootdev string /dev/$grub_disk
  65 EOF
  66         fi
  67         ;;
  68 esac
  69 tar xzf netboot.tar.gz
  70
  71
  72 # if you set priority=critical, you can avoid a few of these questions. but
  73 # then you need to set the hostname in dhcp options
  74 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=755848
  75 # questions you can avoid setting in boot parameters:
  76 # console-setup/ask_detect=false keyboard-configuration/layoutcode=us
  77 # hostname=$hostname
  78 # also, it asks about partition size. I don't know the preseeded answer,
  79 # as it just says "2.0 TB" in get-selections. I would need to figure out
  80 # how to accept the default.
  81 #
  82 # you can also see what got configured on a system with this command:
  83 # sudo apt-get install debconf-utils
  84 # debconf-get-selections --installer
  85 #
  86
  87 # keymap=us is only needed for debian.
  88 pxe_cfg=${distro%-*}-installer/amd64/boot-screens/txt.cfg
  89 sed="sed -ri --follow-symlinks"
  90 $sed "s#^[[:space:]]*append[[:space:]]#\0auto priority=critical locale=en_US.UTF-8  netcfg/choose_interface=auto url=tftp://$ip/example-preseed.txt keymap=us#" $pxe_cfg
  91 # various google results say timeout x will result in doing the default thing,
  92 # but that doesn't happen. no idea why. Maybe it needed to be part of the label.
  93 echo 'totaltimeout 1' | tee -a $pxe_cfg
  94
  95 if $interactive_partition; then
  96     $sed 's/^d-i[[:space:]]partman.*/#\0/' $preseed
  97     # at least in ubuntu, this does automatic selection of boot device,
  98     # and on a server where we setup raid, it choose sda, and failed
  99     # and the whole installation could not be salvaged.
 100     $sed 's/^d-i[[:space:]]grub-installer.*/#\0/' $preseed
 101 fi
 102
 103 $sed "s#(^d-i time/zone string US/).*#\1Pacific#" $preseed
 104 $sed '/^xserver-xorg/,/[^\\$]/ s/.*/#\0/' $preseed
 105 # we set the locale in kernel args. maybe we don't need to. this overrides it.
 106 $sed 's!^d-i[[:space:]]debian-installer/locale[[:space:]].*!#\0!' $preseed
 107
 108 # for secure pass, set the shadow option with mkpasswd -s -m sha-512 < passfile
 109
 110 # the example config says this option shoudl work, but it doesn't. tried it with http too,
 111 # and tried naming it authorized_keys.
 112 #d-i network-console/authorized_keys_url tftp://tftp@10.0.0.107/id_rsa.pub
 113
 114 if $net_console; then
 115     cat >> $preseed  <<EOF
 116 d-i anna/choose_modules string network-console
 117 # this doesn't work. todo: ask debian about it
 118 #d-i network-console/authorized_keys_url http://10.0.0.2/authorized_keys
 119 d-i network-console/password password test
 120 d-i network-console/password-again password test
 121 EOF
 122 fi
 123
 124 cat >> $preseed  <<EOF
 125 d-i hw-detect/load_firmware boolean true
 126 d-i partman/default_filesystem string ext4
 127 d-i passwd/user-fullname string $user
 128 d-i passwd/username string $user
 129 # cleartext password for testing.
 130 d-i passwd/user-password password $user
 131 d-i passwd/user-password-again password $user
 132 d-i passwd/root-password password $user
 133 d-i passwd/root-password-again password $user
 134 d-i pkgsel/update-policy select unattended-upgrades
 135 d-i preseed/late_command string \
 136 in-target sed -i 's/^%sudo.*$/%sudo ALL=(ALL:ALL) NOPASSWD: ALL/g' /etc/sudoers; \
 137 in-target mkdir -p /home/$user/.ssh; \
 138 in-target /bin/sh -c "echo '$(cat ~/.ssh/id_rsa.pub)'  >> /home/$user/.ssh/authorized_keys"; \
 139 in-target chown -R $user:$user /home/$user; \
 140 in-target chmod -R go-rwx /home/$user/.ssh/authorized_keys; \
 141 in-target cp -r /home/$user/.ssh /root; \
 142 in-target usermod -a -G sudo $user;
 143 EOF