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

   1 #!/bin/bash -lx
   2
   3 # Setup arch pxe boot server from the base image.
   4 # Requires manually downloading image to /a/opt, and set it's name below.
   5
   6 set -eE -o pipefail
   7 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?"' ERR
   8
   9 cd /a/opt
  10 #iso="archlinux-2015.11.01-dual"
  11 iso="archlinux-2016.01.01-dual"
  12 sfs=$iso/arch/x86_64/airootfs.sfs
  13 rm -rf $iso
  14 ex $iso.iso
  15 sed -i -f - $iso/arch/boot/syslinux/archiso_pxe64.cfg <<EOF
  16 1itotaltimeout 1
  17 /^LABEL arch64_nfs/a menu default
  18 s/^APPEND .*/\0 script=myarchinit.sh/
  19 EOF
  20 # based on https://blog.chendry.org/2015/02/06/automating-arch-linux-installation.html
  21 # and https://wiki.archlinux.org/index.php/Remastering_the_Install_ISO
  22
  23 s rm -rf squashfs-root # remove any existing folder
  24 s unsquashfs $sfs
  25 s mkdir -p squashfs-root/root/.ssh
  26 s chmod 755 squashfs-root/root/.ssh
  27 s cp ~/.ssh/id_rsa.pub squashfs-root/root/.ssh/authorized_keys
  28 s dd of=squashfs-root/root/myarchinit.sh <<EOF
  29 #!/bin/bash
  30 echo $(date) > /tmp/myarchinit.log
  31 dhcpcd eth0
  32 systemctl start sshd
  33 EOF
  34 s rm $sfs
  35 s mksquashfs squashfs-root $sfs -comp xz
  36 # file transfer to wrt is slow, so remove some useless files
  37 rm $iso/arch/i686/airootfs.sfs $iso/arch/boot/i686/archiso.img
  38 c $(dirname $sfs); md5sum ${sfs##*/} > airootfs.md5; b
  39
  40 # seems if you've done a pxe boot, mounted the nfs,
  41 # then shutdown, it's still busy.
  42 ssh wrt "/etc/init.d/nfsd stop; \
  43 { ! mount | grep /run/archiso/bootmnt || umount /run/archiso/bootmnt; } && \
  44 rm -rf /mnt/usb/$iso"
  45 scp -r $iso wrt:/mnt/usb
  46 ssh wrt "cd /mnt/usb && rm -f tftpboot && ln -s $iso tftpboot"
  47
  48 # The default settings in the installer expect to find the NFS at /run/archiso/bootmnt
  49
  50 pxe-server arch
  51
  52 # background:
  53 # great documentation at https://wiki.archlinux.org/index.php/PXE
  54 # background: arch can do netboot like ubuntu etc, but the docs look a little complicated, so fuck it,
  55 # we use nfs cuz it's easy
  56
  57 rm -rf $iso
  58 s rm -rf squashfs-root