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#!/usr/bin/env python3
# pexpect script to Install NetBSD base Domain
#
# Copyright (C) 2021 Andrew Cagney
#
# 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. See <https://www.gnu.org/licenses/gpl2.txt>.
#
# 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.
# Possibly useful reference:
# http://meta.libera.cc/2020/12/quick-netbsd-serial-console-install-on.html
import pexpect
import sys
import time
import os
FILTER_OUTPUT = False
def i(child):
'''go interactive then quit'''
child.logfile = None
child.interact()
sys.exit(0)
def rs(child, r, s):
child.expect(r, timeout=None)
for c in s:
child.send(c)
def c(child, s):
child.expect('\n# ', timeout=None)
time.sleep(1)
for c in s:
child.send(c)
child.send('\n')
# boot in single user mode (/ is RO)
def install_base(child, param):
# Need to disable DDB's pager so things don't get stuck part way
# through a panic.
# Choices are:
# 1. Boot normally
# 2. Boot single user
# 3. *Drop to boot prompt*
rs(child, 'seconds', '3')
# boot with both +enter-debugger and +single-user-mode
rs(child, '> ', 'boot -d -s\n')
# annoyingly the first thing DDB does is show registers but being
# more than 24 lines; ends up waiting in the pager.
rs(child, '--db_more--', ' ')
# finally at the DDB prompt, set the pager's lines to zero and
# then continue
rs(child, 'db...> ', 'w db_max_line 0\n')
rs(child, 'db...> ', 'continue\n')
# Now resume the install
rs(child, 'Enter pathname of shell or RETURN for /bin/sh:', '\n')
# the above has only 4 seconds
# Configure the created system using base.sh
c(child, 'mount -rt cd9660 /dev/cd1 /mnt')
c(child, '/bin/sh -x /mnt/base.sh')
c(child, 'halt -p')
sys.exit(child.wait())
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