add new deb sources

[automated-distro-installer] / lk

#!/bin/bash
# Copyright (C) 2016 Ian Kelling

# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

usage() {
  cat <<EOF
Usage: ${0##*/} [-h|--help] [HOST]
fai kexec from upstream live cds, i.e. curl|bash

If HOST argument, ssh to root@HOST before doing kexec. This does what
pxe would do, but skipping boot sequence up to and including the pxe
dhcp.


You can copy this to a http server, then wget -O- url|sudo bash
curl is sometimes not preinstalled on a live cd.

Alternative to http server:
1. on install machine nc -l 1234 | sudo bash
2. On another machine nc INSTALL_MACHINE 1234 <live-kexec
Obviously beware that anyone on your network could send commands to the install machine.

This has been tested on trisquel 7 & 8 & ubuntu 16.04 & 18.10.  With
18.10 and trisquel 8 on an x200, kexec was unreliable, resulting in
freezes and kernel panics. On t11, linux 5.15.0-40-generic, after kexec,
black screen, ping worked but nothing else. Debian 11 live image worked.

If the screen just sits in a weird color inverted, corrupted looking state,
it's probably nothing wrong with the computer, but a problem
with the fai server. If you can do this from a virtual terminal,
it will print out more info (I know from running it on a vm).
EOF
  exit $1
}
case $1 in
  -h|--help) usage ;;
  ?*) host=$1
esac

if [[ $host ]]; then
  ssh root@$host bash -s < $(readlink -f "$BASH_SOURCE")
  exit $?
fi

set -ex
if grep -q ID=ubuntu /etc/os-release; then
  # add universe, pxe-kexec is there
  sed -ri '/^\s*deb/{/universe/!s/$/ universe/}' /etc/apt/sources.list
fi
if ! type -p pxe-kexec >/dev/null 2>&1; then
  apt-get update ||: # try even if we fail
  apt-get install -y debconf
  debconf-set-selections <<EOF
kexec-tools kexec-tools/load_kexec boolean false
EOF
  apt-get install -y pxe-kexec
fi
# running this piped to bash on belenos, the apt-get goes
# into the background while it's still installing, and pxe-kexec
# just exits right away. sleep calls are strangely ignored.
# I don't know whats going on, but just running the same
# command again once it finishes works, and this is only
# rarely used and done manually anyways, so whatever.
pxe-kexec -n --ignore-whitelist -l fai-generated faiserver