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

   1 #!/bin/bash -lx
   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 # Setup arch pxe boot server from the base image.
  19 # Requires manually downloading image to /a/opt, and set it's name below.
  20
  21 set -eE -o pipefail
  22 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  23
  24 x="$(readlink -f "$BASH_SOURCE")"
  25 script_dir="${x%/*}"
  26 cd /a/opt
  27 iso="archlinux-2016.05.01-dual"
  28 sfs=$iso/arch/x86_64/airootfs.sfs
  29 rm -rf $iso
  30 ex $iso.iso
  31 sed -i --follow-symlinks -f - $iso/arch/boot/syslinux/archiso_pxe64.cfg <<EOF
  32 1itotaltimeout 1
  33 /^LABEL arch64_nfs/a menu default
  34 s/^APPEND .*/\0 script=arch-iso-init/
  35 EOF
  36 # based on https://blog.chendry.org/2015/02/06/automating-arch-linux-installation.html
  37 # and https://wiki.archlinux.org/index.php/Remastering_the_Install_ISO
  38
  39 s rm -rf squashfs-root # remove any existing folder
  40 s unsquashfs $sfs
  41 s mkdir -p squashfs-root/root/.ssh
  42 s chmod 755 squashfs-root/root/.ssh
  43 s cp ~/.ssh/id_rsa.pub squashfs-root/root/.ssh/authorized_keys
  44
  45 s cp $script_dir/arch-iso-init squashfs-root/root
  46 s rm $sfs
  47 s mksquashfs squashfs-root $sfs -comp xz
  48 # file transfer to wrt is slow, so remove some useless files
  49 rm $iso/arch/i686/airootfs.sfs $iso/arch/boot/i686/archiso.img
  50 c $(dirname $sfs); md5sum ${sfs##*/} > airootfs.md5; b
  51
  52 # seems if you've done a pxe boot, mounted the nfs,
  53 # then shutdown, it's still busy.
  54 ssh wrt "/etc/init.d/nfsd stop; \
  55 { ! mount | grep /run/archiso/bootmnt || umount /run/archiso/bootmnt; } && \
  56 rm -rf /mnt/usb/$iso"
  57 scp -r $iso wrt:/mnt/usb
  58 ssh wrt "cd /mnt/usb && rm -f tftpboot && ln -s $iso tftpboot"
  59
  60 # The default settings in the installer expect to find the NFS at /run/archiso/bootmnt
  61
  62 pxe-server default arch
  63
  64 # background:
  65 # great documentation at https://wiki.archlinux.org/index.php/PXE
  66 # background: arch can do netboot like ubuntu etc, but the docs look a little complicated, so fuck it,
  67 # we use nfs cuz it's easy
  68
  69 rm -rf $iso
  70 s rm -rf squashfs-root