freebsd-dev/etc/rc.d/gptboot
Doug Barton 801c438304 Prepare for the removal of set_rcvar() by changing the rcvar=
assignments to the literal values it would have returned.

The concept of set_rcvar() was nice in theory, but the forks
it creates are a drag on the startup process, which is especially
noticeable on slower systems, such as embedded ones.

During the discussion on freebsd-rc@ a preference was expressed for
using ${name}_enable instead of the literal values. However the
code portability concept doesn't really apply since there are so
many other places where the literal name has to be searched for
and replaced. Also, using the literal value is also a tiny bit
faster than dereferencing the variables, and every little bit helps.
2012-01-14 02:18:41 +00:00

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#!/bin/sh
#
# Copyright (c) 2010 Pawel Jakub Dawidek <pjd@FreeBSD.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
# PROVIDE: gptboot
# REQUIRE: mountcritremote
# KEYWORD: nojail
. /etc/rc.subr
name="gptboot"
rcvar="gptboot_enable"
start_cmd="gptboot_report"
gptboot_report()
{
gpart show | \
egrep '(^=>| freebsd-ufs .*(\[|,)(bootfailed|bootonce)(,|\]))' | \
sed 's/^=>//' | \
egrep -v '(\[|,)bootme(,|\])' | \
while read start size pos type attrs rest; do
case "${pos}" in
[0-9]*)
if [ -n "${disk}" ]; then
part="${disk}p${pos}"
echo "${attrs}" | egrep -q '(\[|,)bootfailed(,|\])'
bootfailed=$?
echo "${attrs}" | egrep -q '(\[|,)bootonce(,|\])'
bootonce=$?
if [ ${bootfailed} -eq 0 ]; then
logger -t gptboot -p local0.notice "Boot from ${part} failed."
gpart unset -a bootfailed -i ${pos} ${disk} >/dev/null
elif [ ${bootonce} -eq 0 ]; then
# We want to log success after all failures.
echo -n "Boot from ${part} succeeded."
gpart unset -a bootonce -i ${pos} ${disk} >/dev/null
fi
fi
;;
*)
if [ "${type}" = "GPT" ]; then
disk="${pos}"
else
disk=""
fi
;;
esac
done | logger -t gptboot -p local0.notice
}
load_rc_config $name
run_rc_command "$1"