b7fa166b60
Nextboot(8) can now set any combination of kernel name (-k), kernel options (-o), and environment strings (-e). As a result of this change -k also becomes optional. Reviewed by: freebsd-current (Ian Lepore, pluknet@, jhb@)
93 lines
1.5 KiB
Bash
93 lines
1.5 KiB
Bash
#! /bin/sh
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#
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# Copyright 2002. Gordon Tetlow.
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# gordon@FreeBSD.org
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# Copyright (c) 2012 Sandvine Incorporated. All rights reserved.
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#
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# $FreeBSD$
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delete="NO"
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kenv=
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force="NO"
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nextboot_file="/boot/nextboot.conf"
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add_kenv()
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{
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local var value
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var=$1
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# strip literal quotes if passed in
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value=${2%\"*}
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value=${value#*\"}
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if [ -n "${kenv}" ]; then
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kenv="${kenv}
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"
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fi
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kenv="${kenv}${var}=\"${value}\""
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}
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display_usage() {
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echo "Usage: nextboot [-e variable=value] [-f] [-k kernel] [-o options]"
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echo " nextboot -D"
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}
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while getopts "De:fk:o:" argument ; do
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case "${argument}" in
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D)
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delete="YES"
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;;
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e)
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var=${OPTARG%%=*}
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value=${OPTARG#*=}
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if [ -z "$var" -o -z "$value" ]; then
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display_usage
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exit 1
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fi
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add_kenv "$var" "$value"
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;;
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f)
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force="YES"
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;;
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k)
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kernel="${OPTARG}"
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add_kenv kernel "$kernel"
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;;
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o)
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add_kenv kernel_options "${OPTARG}"
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;;
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*)
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display_usage
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exit 1
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;;
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esac
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done
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if [ ${delete} = "YES" ]; then
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rm -f ${nextboot_file}
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exit 0
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fi
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if [ -z "${kenv}" ]; then
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display_usage
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exit 1
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fi
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if [ -n "${kernel}" -a ${force} = "NO" -a ! -d /boot/${kernel} ]; then
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echo "Error: /boot/${kernel} doesn't exist. Use -f to override."
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exit 1
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fi
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df -Tn "/boot/" 2>/dev/null | while read _fs _type _other ; do
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[ "zfs" = "${_type}" ] || continue
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cat 1>&2 <<-EOF
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WARNING: loader(8) has only R/O support for ZFS
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nextboot.conf will NOT be reset in case of kernel boot failure
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EOF
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done
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cat > ${nextboot_file} << EOF
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nextboot_enable="YES"
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$kenv
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EOF
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