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|
#! /bin/sh
#
# Copyright 2002. Gordon Tetlow.
# gordon@FreeBSD.org
# Copyright (c) 2012 Sandvine Incorporated. All rights reserved.
#
# $FreeBSD$
delete="NO"
kenv=
force="NO"
nextboot_file="/boot/nextboot.conf"
add_kenv()
{
local var value
var=$1
# strip literal quotes if passed in
value=${2%\"*}
value=${value#*\"}
if [ -n "${kenv}" ]; then
kenv="${kenv}
"
fi
kenv="${kenv}${var}=\"${value}\""
}
display_usage() {
echo "Usage: nextboot [-e variable=value] [-f] [-k kernel] [-o options]"
echo " nextboot -D"
}
while getopts "De:fk:o:" argument ; do
case "${argument}" in
D)
delete="YES"
;;
e)
var=${OPTARG%%=*}
value=${OPTARG#*=}
if [ -z "$var" -o -z "$value" ]; then
display_usage
exit 1
fi
add_kenv "$var" "$value"
;;
f)
force="YES"
;;
k)
kernel="${OPTARG}"
add_kenv kernel "$kernel"
;;
o)
add_kenv kernel_options "${OPTARG}"
;;
*)
display_usage
exit 1
;;
esac
done
if [ ${delete} = "YES" ]; then
rm -f ${nextboot_file}
exit 0
fi
if [ -z "${kenv}" ]; then
display_usage
exit 1
fi
if [ -n "${kernel}" -a ${force} = "NO" -a ! -d /boot/${kernel} ]; then
echo "Error: /boot/${kernel} doesn't exist. Use -f to override."
exit 1
fi
df -Tn "/boot/" 2>/dev/null | while read _fs _type _other ; do
[ "zfs" = "${_type}" ] || continue
cat 1>&2 <<-EOF
WARNING: loader(8) has only R/O support for ZFS
nextboot.conf will NOT be reset in case of kernel boot failure
EOF
done
cat > ${nextboot_file} << EOF
nextboot_enable="YES"
$kenv
EOF
|
