Annotation of /trunk/grubby/grubby-bls

#!/bin/bash
#
# grubby wrapper to manage BootLoaderSpec files
#
#
# Copyright 2018 Red Hat, Inc.  All rights reserved.
#
# 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, see <http://www.gnu.org/licenses/>.

readonly SCRIPTNAME="${0##*/}"

CMDLINE_LINUX_DEBUG=" systemd.log_level=debug systemd.log_target=kmsg"
LINUX_DEBUG_VERSION_POSTFIX="_with_debugging"
LINUX_DEBUG_TITLE_POSTFIX=" with debugging"

declare -a bls_file
declare -a bls_title
declare -a bls_version
declare -a bls_linux
declare -a bls_initrd
declare -a bls_options
declare -a bls_id

[[ -f /etc/sysconfig/kernel ]] && . /etc/sysconfig/kernel
[[ -f /etc/os-release ]] && . /etc/os-release
read MACHINE_ID < /etc/machine-id
arch=$(uname -m)

if [[ $arch = 's390' || $arch = 's390x' ]]; then
    bootloader="zipl"
else
    bootloader="grub2"
fi

print_error() {
    echo "$1" >&2
    exit 1
}

if [[ ${#} = 0 ]]; then
    print_error "no action specified"
fi

get_bls_value() {
    local bls="$1" && shift
    local key="$1" && shift

    echo "$(grep "^${key}[ \t]" "${bls}" | sed -e "s,^${key}[ \t]*,,")"
}

set_bls_value() {
    local bls="$1" && shift
    local key="$1" && shift
    local value="$1" && shift

    sed -i -e "s,^${key}.*,${key} ${value}," "${bls}"
}

append_bls_value() {
    local bls="$1" && shift
    local key="$1" && shift
    local value="$1" && shift

    old_value="$(get_bls_value ${bls} ${key})"
    set_bls_value "${bls}" "${key}" "${old_value}${value}"
}

get_bls_values() {
    count=0
    for bls in $(ls -vr ${blsdir}/*.conf 2> /dev/null); do
        bls_file[$count]="${bls}"
        bls_title[$count]="$(get_bls_value ${bls} title)"
        bls_version[$count]="$(get_bls_value ${bls} version)"
        bls_linux[$count]="$(get_bls_value ${bls} linux)"
        bls_initrd[$count]="$(get_bls_value ${bls} initrd)"
        bls_options[$count]="$(get_bls_value ${bls} options)"
        bls_id[$count]="$(get_bls_value ${bls} id)"

        count=$((count+1))
    done
}

get_default_index() {
    local default=""
    local index="-1"
    local title=""
    local version=""
    if [[ $bootloader = "grub2" ]]; then
	default="$(grep '^saved_entry=' ${env} | sed -e 's/^saved_entry=//')"
    else
	default="$(grep '^default=' ${zipl_config} | sed -e 's/^default=//')"
    fi

    if [[ -z $default ]]; then
	index=0
    elif [[ $default =~ ^[0-9]+$ ]]; then
	index="$default"
    fi

    # GRUB2 and zipl use different fields to set the default entry
    if [[ $bootloader = "grub2" ]]; then
	title="$default"
    else
	version="$default"
    fi

    for i in ${!bls_file[@]}; do
        if [[ $title = ${bls_title[$i]} || $version = ${bls_version[$i]} ||
           $i -eq $index ]]; then
            echo $i
            return
        fi
    done
}

display_default_value() {
    case "$display_default" in
        kernel)
            echo "${bls_linux[$default_index]}"
            exit 0
            ;;
        index)
            echo "$default_index"
            exit 0
            ;;
        title)
            echo "${bls_title[$default_index]}"
            exit 0
            ;;
    esac
}

param_to_indexes() {
    local param="$1"
    local indexes=""

    if [[ $param = "ALL" ]]; then
        for i in ${!bls_file[@]}; do
            indexes="$indexes $i"
        done
        echo -n $indexes
        return
    fi

    if [[ $param = "DEFAULT" ]]; then
        echo -n $default_index
        return
    fi

    for i in ${!bls_file[@]}; do
        if [[ $param = "${bls_linux[$i]}" ]]; then
            indexes="$indexes $i"
        fi

        if [[ $param = "TITLE=${bls_title[$i]}" ]]; then
            indexes="$indexes $i"
        fi

	if [[ $param = $i ]]; then
	    indexes="$indexes $i"
	fi
    done

    if [[ -n $indexes ]]; then
        echo -n $indexes
        return
    fi

    echo -n "-1"
}

display_info_values() {
    local indexes=($(param_to_indexes "$1"))

    for i in ${indexes[*]}; do
        echo "index=$i"
        echo "kernel=${bls_linux[$i]}"
        echo "args=\"${bls_options[$i]}\""
        echo "initrd=${bls_initrd[$i]}"
        echo "title=${bls_title[$i]}"
    done
    exit 0
}

mkbls() {
    local kernel=$1 && shift
    local kernelver=$1 && shift
    local datetime=$1 && shift

    local debugname=""
    local flavor=""

    if [[ $kernelver == *\+* ]] ; then
        local flavor=-"${kernelver##*+}"
        if [[ $flavor == "-debug" ]]; then
            local debugname="with debugging"
	    local debugid="-debug"
        fi
    fi

    cat <<EOF
title ${NAME} (${kernelver}) ${VERSION}${debugname}
version ${kernelver}${debugid}
linux ${kernel}
initrd /initramfs-${kernelver}.img
options \$kernelopts
id ${ID}-${datetime}-${kernelver}${debugid}
grub_users \$grub_users
grub_arg --unrestricted
grub_class kernel${flavor}
EOF
}

remove_bls_fragment() {
    local indexes=($(param_to_indexes "$1"))

    if [[ $indexes = "-1" ]]; then
	print_error "The param $1 is incorrect"
    fi

    for i in ${indexes[*]}; do
        rm -f "${bls_file[$i]}"
    done

    get_bls_values
}

add_bls_fragment() {
    local kernel="$1" && shift
    local title="$1" && shift
    local options="$1" && shift
    local initrd="$1" && shift
    local extra_initrd="$1" && shift

    if [[ $kernel = *"vmlinuz-"* ]]; then
	kernelver="${kernel##*/vmlinuz-}"
    else
	kernelver="${kernel##*/}"
    fi

    if [[ ! -d "/lib/modules/${kernelver}" || ! -f "/boot/vmlinuz-${kernelver}" ]] &&
       [[ $bad_image != "true" ]]; then
        print_error "The ${kernelver} kernel isn't installed in the machine"
    fi

    if [[ -z $title ]]; then
	print_error "The kernel title must be specified"
    fi

    if [[ ! -d $blsdir ]]; then
        install -m 700 -d "${blsdir}"
    fi

    bls_target="${blsdir}/${MACHINE_ID}-${kernelver}.conf"
    kernel_dir="/lib/modules/${kernelver}"
    if [[ -f "${kernel_dir}/bls.conf" ]]; then
        cp -aT "${kernel_dir}/bls.conf" "${bls_target}" || exit $?
    else
	if [[ -d $kernel_dir ]]; then
	    datetime="$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${kernel_dir}")")"
	else
	    datetime=0
	fi
        mkbls "${kernel}" "${kernelver}" "${datetime}" > "${bls_target}"
    fi

    if [[ -n $title ]]; then
        set_bls_value "${bls_target}" "title" "${title}"
    fi

    if [[ -n $options ]]; then
        set_bls_value "${bls_target}" "options" "${options}"
    fi

    if [[ -n $initrd ]]; then
        set_bls_value "${bls_target}" "initrd" "${initrd}"
    fi

    if [[ -n $extra_initrd ]]; then
        append_bls_value "${bls_target}" "initrd" "${extra_initrd}"
    fi

    if [[ $MAKEDEBUG = "yes" ]]; then
        arch="$(uname -m)"
        bls_debug="$(echo ${bls_target} | sed -e "s/\.${arch}/-debug.${arch}/")"
        cp -aT  "${bls_target}" "${bls_debug}"
        append_bls_value "${bls_debug}" "title" "${LINUX_DEBUG_TITLE_POSTFIX}"
        append_bls_value "${bls_debug}" "version" "${LINUX_DEBUG_VERSION_POSTFIX}"
        append_bls_value "${bls_debug}" "options" "${CMDLINE_LINUX_DEBUG}"
        blsid="$(get_bls_value ${bls_debug} "id" | sed -e "s/\.${arch}/-debug.${arch}/")"
        set_bls_value "${bls_debug}" "id" "${blsid}"
    fi

    get_bls_values

    if [[ $make_default = "true" ]]; then
        set_default_bls "TITLE=${title}"
    fi

    exit 0
}

update_args() {
    local args=$1 && shift
    local remove_args=($1) && shift
    local add_args=($1) && shift

    for arg in ${remove_args[*]}; do
        args="$(echo $args | sed -e "s,$arg[^ ]*,,")"
    done

    for arg in ${add_args[*]}; do
        if [[ $arg = *"="* ]]; then
            value=${arg##*=}
            key=${arg%%=$value}
            exist=$(echo $args | grep "${key}=")
            if [[ -n $exist ]]; then
                args="$(echo $args | sed -e "s,$key=[^ ]*,$key=$value,")"
            else
                args="$args $key=$value"
            fi
        else
            exist=$(echo $args | grep $arg)
            if ! [[ -n $exist ]]; then
                args="$args $arg"
            fi
        fi
    done

    echo ${args}
}

update_bls_fragment() {
    local indexes=($(param_to_indexes "$1")) && shift
    local remove_args=$1 && shift
    local add_args=$1 && shift
    local initrd=$1 && shift

    for i in ${indexes[*]}; do
	if [[ -n $remove_args || -n $add_args ]]; then
            local new_args="$(update_args "${bls_options[$i]}" "${remove_args}" "${add_args}")"
            set_bls_value "${bls_file[$i]}" "options" "${new_args}"
	fi

	if [[ -n $initrd ]]; then
	    set_bls_value "${bls_file[$i]}" "initrd" "${initrd}"
	fi
    done
}

set_default_bls() {
    local index=($(param_to_indexes "$1"))

    if [[ $bootloader = grub2 ]]; then
        grub2-editenv "${env}" set saved_entry="${bls_title[$index]}"
    else
        local default="${bls_version[$index]}"
        local current="$(grep '^default=' ${zipl_config} | sed -e 's/^default=//')"
        if [[ -n $current ]]; then
            sed -i -e "s,^default=.*,default=${default}," "${zipl_config}"
        else
            echo "default=${default}" >> "${zipl_config}"
        fi
    fi
}

remove_var_prefix() {
    if [[ -n $remove_kernel && $remove_kernel =~ ^/ ]]; then
       remove_kernel="/${remove_kernel##*/}"
    fi

    if [[ -n $initrd ]]; then
	initrd="/${initrd##*/}"
    fi

    if [[ -n $extra_initrd ]]; then
	extra_initrd=" /${extra_initrd##*/}"
    fi

    if [[ -n $kernel ]]; then
	kernel="/${kernel##*/}"
    fi

    if [[ -n $update_kernel && $update_kernel =~ ^/ ]]; then
	update_kernel="/${update_kernel##*/}"
    fi
}

print_usage()
{
    cat <<EOF
Usage: grubby [OPTION...]
      --add-kernel=kernel-path            add an entry for the specified kernel
      --args=args                         default arguments for the new kernel or new arguments for kernel being updated)
      --bad-image-okay                    don't sanity check images in boot entries (for testing only)
  -c, --config-file=path                  path to grub config file to update ("-" for stdin)
      --copy-default                      use the default boot entry as a template for the new entry being added; if the default is not a linux image, or if the kernel referenced by the default image does not exist, the
                                          first linux entry whose kernel does exist is used as the template
      --default-kernel                    display the path of the default kernel
      --default-index                     display the index of the default kernel
      --default-title                     display the title of the default kernel
      --env=path                          path for environment data
      --grub2                             configure grub2 bootloader
      --info=kernel-path                  display boot information for specified kernel
      --initrd=initrd-path                initrd image for the new kernel
  -i, --extra-initrd=initrd-path          auxiliary initrd image for things other than the new kernel
      --make-default                      make the newly added entry the default boot entry
  -o, --output-file=path                  path to output updated config file ("-" for stdout)
      --remove-args=STRING                remove kernel arguments
      --remove-kernel=kernel-path         remove all entries for the specified kernel
      --set-default=kernel-path           make the first entry referencing the specified kernel the default
      --set-default-index=entry-index     make the given entry index the default entry
      --title=entry-title                 title to use for the new kernel entry
      --update-kernel=kernel-path         updated information for the specified kernel
      --zipl                              configure zipl bootloader
  -b, --bls-directory                     path to directory containing the BootLoaderSpec fragment files

Help options:
  -?, --help                              Show this help message

EOF
}

OPTS="$(getopt -o c:i:o:b:? --long help,add-kernel:,args:,bad-image-okay,\
config-file:,copy-default,default-kernel,default-index,default-title,env:,\
grub2,info:,initrd:,extra-initrd:,make-default,output-file:,remove-args:,\
remove-kernel:,set-default:,set-default-index:,title:,update-kernel:,zipl,\
bls-directory:,add-kernel:,add-multiboot:,mbargs:,mounts:,boot-filesystem:,\
bootloader-probe,debug,devtree,devtreedir:,elilo,efi,extlinux,grub,lilo,\
output-file:,remove-mbargs:,remove-multiboot:,silo,yaboot -n ${SCRIPTNAME} -- "$@")"

[[ $? = 0 ]] || exit 1

eval set -- "$OPTS"

while [ ${#} -gt 0 ]; do
    case "$1" in
        --help|-h)
            print_usage
            exit 0
            ;;
        --add-kernel)
            kernel="${2}"
            shift
            ;;
        --args)
            args="${2}"
            shift
            ;;
        --bad-image-okay)
            bad_image=true
            ;;
        --config-file|-c)
            zipl_config="${2}"
            shift
            ;;
        --copy-default)
            copy_default=true
            ;;
        --default-kernel)
            display_default="kernel"
            ;;
        --default-index)
            display_default="index"
            ;;
        --default-title)
            display_default="title"
            ;;
        --env)
            env="${2}"
            shift
            ;;
        --grub2)
            bootloader="grub2"
            ;;
        --info)
            display_info="${2}"
            shift
            ;;
        --initrd)
            initrd="${2}"
            shift
            ;;
        --extra-initrd|-i)
            extra_initrd=" /${2}"
            shift
            ;;
        --make-default)
            make_default=true
            ;;
        --output-file|-o)
            output_file="${2}"
            shift
            ;;
        --remove-args)
            remove_args="${2}"
            shift
            ;;
        --remove-kernel)
            remove_kernel="${2}"
            shift
            ;;
        --set-default)
            set_default="${2}"
            shift
            ;;
        --set-default-index)
            set_default="${2}"
            shift
            ;;
        --title)
            title="${2}"
            shift
            ;;
        --update-kernel)
            update_kernel="${2}"
            shift
            ;;
        --zipl)
            bootloader="zipl"
            ;;
        --bls-directory|-b)
            blsdir="${2}"
	    shift
	    ;;
        --add-kernel|--add-multiboot|--mbargs|--mounts|--boot-filesystem|\
        --bootloader-probe|--debug|--devtree|--devtreedir|--elilo|--efi|\
        --extlinux|--grub|--lilo|--output-file|--remove-mbargs|--silo|\
        --remove-multiboot|--slilo|--yaboot)
            echo
            echo "${SCRIPTNAME}: the option \"${1}\" was deprecated" >&2
            echo "Try '${SCRIPTNAME} --help' to list supported options" >&2
            echo
	    exit 1
	    ;;
        --)
            shift
            break
            ;;
        *)
            echo
            echo "${SCRIPTNAME}: invalid option \"${1}\"" >&2
            echo "Try '${SCRIPTNAME} --help' for more information" >&2
            echo
            exit 1
            ;;
    esac
    shift
done

if [[ -z $blsdir ]]; then
    blsdir="/boot/loader/entries"
fi

if [[ -z $env ]]; then
    env="/boot/grub2/grubenv"
fi

if [[ -z $zipl_config ]]; then
    zipl_config="/etc/zipl.conf"
fi

get_bls_values

default_index="$(get_default_index)"

if [[ -n $display_default ]]; then
    display_default_value
fi

if [[ -n $display_info ]]; then
    display_info_values "${display_info}"
fi

if [[ $bootloader = grub2 ]]; then
    remove_var_prefix
fi

if [[ -n $kernel ]]; then
    if [[ $copy_default = "true" ]]; then
	opts="${bls_options[$default_index]}"
	if [[ -n $args ]]; then
	    opts="${opts} ${args}"
	fi
    else
	opts="${args}"
    fi

    add_bls_fragment "${kernel}" "${title}" "${opts}" "${initrd}" \
                     "${extra_initrd}"
fi

if [[ -n $remove_kernel ]]; then
    remove_bls_fragment "${remove_kernel}"
fi

if [[ -n $update_kernel ]]; then
    update_bls_fragment "${update_kernel}" "${remove_args}" "${args}" "${initrd}"
fi

if [[ -n $set_default ]]; then
    set_default_bls "${set_default}"
fi

exit 0
1	niro	3141	#!/bin/bash
2			#
3			# grubby wrapper to manage BootLoaderSpec files
4			#
5			#
6			# Copyright 2018 Red Hat, Inc. All rights reserved.
7			#
8			# This program is free software; you can redistribute it and/or modify
9			# it under the terms of the GNU General Public License as published by
10			# the Free Software Foundation; either version 2 of the License, or
11			# (at your option) any later version.
12			#
13			# This program is distributed in the hope that it will be useful,
14			# but WITHOUT ANY WARRANTY; without even the implied warranty of
15			# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			# GNU General Public License for more details.
17			#
18			# You should have received a copy of the GNU General Public License
19			# along with this program. If not, see <http://www.gnu.org/licenses/>.
20
21			readonly SCRIPTNAME="${0##*/}"
22
23			CMDLINE_LINUX_DEBUG=" systemd.log_level=debug systemd.log_target=kmsg"
24			LINUX_DEBUG_VERSION_POSTFIX="_with_debugging"
25			LINUX_DEBUG_TITLE_POSTFIX=" with debugging"
26
27			declare -a bls_file
28			declare -a bls_title
29			declare -a bls_version
30			declare -a bls_linux
31			declare -a bls_initrd
32			declare -a bls_options
33			declare -a bls_id
34
35			[[ -f /etc/sysconfig/kernel ]] && . /etc/sysconfig/kernel
36			[[ -f /etc/os-release ]] && . /etc/os-release
37			read MACHINE_ID < /etc/machine-id
38			arch=$(uname -m)
39
40			if [[ $arch = 's390' \|\| $arch = 's390x' ]]; then
41			bootloader="zipl"
42			else
43			bootloader="grub2"
44			fi
45
46			print_error() {
47			echo "$1" >&2
48			exit 1
49			}
50
51			if [[ ${#} = 0 ]]; then
52			print_error "no action specified"
53			fi
54
55			get_bls_value() {
56			local bls="$1" && shift
57			local key="$1" && shift
58
59			echo "$(grep "^${key}[ \t]" "${bls}" \| sed -e "s,^${key}[ \t]*,,")"
60			}
61
62			set_bls_value() {
63			local bls="$1" && shift
64			local key="$1" && shift
65			local value="$1" && shift
66
67			sed -i -e "s,^${key}.*,${key} ${value}," "${bls}"
68			}
69
70			append_bls_value() {
71			local bls="$1" && shift
72			local key="$1" && shift
73			local value="$1" && shift
74
75			old_value="$(get_bls_value ${bls} ${key})"
76			set_bls_value "${bls}" "${key}" "${old_value}${value}"
77			}
78
79			get_bls_values() {
80			count=0
81			for bls in $(ls -vr ${blsdir}/*.conf 2> /dev/null); do
82			bls_file[$count]="${bls}"
83			bls_title[$count]="$(get_bls_value ${bls} title)"
84			bls_version[$count]="$(get_bls_value ${bls} version)"
85			bls_linux[$count]="$(get_bls_value ${bls} linux)"
86			bls_initrd[$count]="$(get_bls_value ${bls} initrd)"
87			bls_options[$count]="$(get_bls_value ${bls} options)"
88			bls_id[$count]="$(get_bls_value ${bls} id)"
89
90			count=$((count+1))
91			done
92			}
93
94			get_default_index() {
95			local default=""
96			local index="-1"
97			local title=""
98			local version=""
99			if [[ $bootloader = "grub2" ]]; then
100			default="$(grep '^saved_entry=' ${env} \| sed -e 's/^saved_entry=//')"
101			else
102			default="$(grep '^default=' ${zipl_config} \| sed -e 's/^default=//')"
103			fi
104
105			if [[ -z $default ]]; then
106			index=0
107			elif [[ $default =~ ^[0-9]+$ ]]; then
108			index="$default"
109			fi
110
111			# GRUB2 and zipl use different fields to set the default entry
112			if [[ $bootloader = "grub2" ]]; then
113			title="$default"
114			else
115			version="$default"
116			fi
117
118			for i in ${!bls_file[@]}; do
119			if [[ $title = ${bls_title[$i]} \|\| $version = ${bls_version[$i]} \|\|
120			$i -eq $index ]]; then
121			echo $i
122			return
123			fi
124			done
125			}
126
127			display_default_value() {
128			case "$display_default" in
129			kernel)
130			echo "${bls_linux[$default_index]}"
131			exit 0
132			;;
133			index)
134			echo "$default_index"
135			exit 0
136			;;
137			title)
138			echo "${bls_title[$default_index]}"
139			exit 0
140			;;
141			esac
142			}
143
144			param_to_indexes() {
145			local param="$1"
146			local indexes=""
147
148			if [[ $param = "ALL" ]]; then
149			for i in ${!bls_file[@]}; do
150			indexes="$indexes $i"
151			done
152			echo -n $indexes
153			return
154			fi
155
156			if [[ $param = "DEFAULT" ]]; then
157			echo -n $default_index
158			return
159			fi
160
161			for i in ${!bls_file[@]}; do
162			if [[ $param = "${bls_linux[$i]}" ]]; then
163			indexes="$indexes $i"
164			fi
165
166			if [[ $param = "TITLE=${bls_title[$i]}" ]]; then
167			indexes="$indexes $i"
168			fi
169
170			if [[ $param = $i ]]; then
171			indexes="$indexes $i"
172			fi
173			done
174
175			if [[ -n $indexes ]]; then
176			echo -n $indexes
177			return
178			fi
179
180			echo -n "-1"
181			}
182
183			display_info_values() {
184			local indexes=($(param_to_indexes "$1"))
185
186			for i in ${indexes[*]}; do
187			echo "index=$i"
188			echo "kernel=${bls_linux[$i]}"
189			echo "args=\"${bls_options[$i]}\""
190			echo "initrd=${bls_initrd[$i]}"
191			echo "title=${bls_title[$i]}"
192			done
193			exit 0
194			}
195
196			mkbls() {
197			local kernel=$1 && shift
198			local kernelver=$1 && shift
199			local datetime=$1 && shift
200
201			local debugname=""
202			local flavor=""
203
204			if [[ $kernelver == \+ ]] ; then
205			local flavor=-"${kernelver##*+}"
206			if [[ $flavor == "-debug" ]]; then
207			local debugname="with debugging"
208			local debugid="-debug"
209			fi
210			fi
211
212			cat <<EOF
213			title ${NAME} (${kernelver}) ${VERSION}${debugname}
214			version ${kernelver}${debugid}
215			linux ${kernel}
216			initrd /initramfs-${kernelver}.img
217			options \$kernelopts
218			id ${ID}-${datetime}-${kernelver}${debugid}
219			grub_users \$grub_users
220			grub_arg --unrestricted
221			grub_class kernel${flavor}
222			EOF
223			}
224
225			remove_bls_fragment() {
226			local indexes=($(param_to_indexes "$1"))
227
228			if [[ $indexes = "-1" ]]; then
229			print_error "The param $1 is incorrect"
230			fi
231
232			for i in ${indexes[*]}; do
233			rm -f "${bls_file[$i]}"
234			done
235
236			get_bls_values
237			}
238
239			add_bls_fragment() {
240			local kernel="$1" && shift
241			local title="$1" && shift
242			local options="$1" && shift
243			local initrd="$1" && shift
244			local extra_initrd="$1" && shift
245
246			if [[ $kernel = "vmlinuz-" ]]; then
247			kernelver="${kernel##*/vmlinuz-}"
248			else
249			kernelver="${kernel##*/}"
250			fi
251
252			if [[ ! -d "/lib/modules/${kernelver}" \|\| ! -f "/boot/vmlinuz-${kernelver}" ]] &&
253			[[ $bad_image != "true" ]]; then
254			print_error "The ${kernelver} kernel isn't installed in the machine"
255			fi
256
257			if [[ -z $title ]]; then
258			print_error "The kernel title must be specified"
259			fi
260
261			if [[ ! -d $blsdir ]]; then
262			install -m 700 -d "${blsdir}"
263			fi
264
265			bls_target="${blsdir}/${MACHINE_ID}-${kernelver}.conf"
266			kernel_dir="/lib/modules/${kernelver}"
267			if [[ -f "${kernel_dir}/bls.conf" ]]; then
268			cp -aT "${kernel_dir}/bls.conf" "${bls_target}" \|\| exit $?
269			else
270			if [[ -d $kernel_dir ]]; then
271			datetime="$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${kernel_dir}")")"
272			else
273			datetime=0
274			fi
275			mkbls "${kernel}" "${kernelver}" "${datetime}" > "${bls_target}"
276			fi
277
278			if [[ -n $title ]]; then
279			set_bls_value "${bls_target}" "title" "${title}"
280			fi
281
282			if [[ -n $options ]]; then
283			set_bls_value "${bls_target}" "options" "${options}"
284			fi
285
286			if [[ -n $initrd ]]; then
287			set_bls_value "${bls_target}" "initrd" "${initrd}"
288			fi
289
290			if [[ -n $extra_initrd ]]; then
291			append_bls_value "${bls_target}" "initrd" "${extra_initrd}"
292			fi
293
294			if [[ $MAKEDEBUG = "yes" ]]; then
295			arch="$(uname -m)"
296			bls_debug="$(echo ${bls_target} \| sed -e "s/\.${arch}/-debug.${arch}/")"
297			cp -aT "${bls_target}" "${bls_debug}"
298			append_bls_value "${bls_debug}" "title" "${LINUX_DEBUG_TITLE_POSTFIX}"
299			append_bls_value "${bls_debug}" "version" "${LINUX_DEBUG_VERSION_POSTFIX}"
300			append_bls_value "${bls_debug}" "options" "${CMDLINE_LINUX_DEBUG}"
301			blsid="$(get_bls_value ${bls_debug} "id" \| sed -e "s/\.${arch}/-debug.${arch}/")"
302			set_bls_value "${bls_debug}" "id" "${blsid}"
303			fi
304
305			get_bls_values
306
307			if [[ $make_default = "true" ]]; then
308			set_default_bls "TITLE=${title}"
309			fi
310
311			exit 0
312			}
313
314			update_args() {
315			local args=$1 && shift
316			local remove_args=($1) && shift
317			local add_args=($1) && shift
318
319			for arg in ${remove_args[*]}; do
320			args="$(echo $args \| sed -e "s,$arg[^ ]*,,")"
321			done
322
323			for arg in ${add_args[*]}; do
324			if [[ $arg = "=" ]]; then
325			value=${arg##*=}
326			key=${arg%%=$value}
327			exist=$(echo $args \| grep "${key}=")
328			if [[ -n $exist ]]; then
329			args="$(echo $args \| sed -e "s,$key=[^ ]*,$key=$value,")"
330			else
331			args="$args $key=$value"
332			fi
333			else
334			exist=$(echo $args \| grep $arg)
335			if ! [[ -n $exist ]]; then
336			args="$args $arg"
337			fi
338			fi
339			done
340
341			echo ${args}
342			}
343
344			update_bls_fragment() {
345			local indexes=($(param_to_indexes "$1")) && shift
346			local remove_args=$1 && shift
347			local add_args=$1 && shift
348			local initrd=$1 && shift
349
350			for i in ${indexes[*]}; do
351			if [[ -n $remove_args \|\| -n $add_args ]]; then
352			local new_args="$(update_args "${bls_options[$i]}" "${remove_args}" "${add_args}")"
353			set_bls_value "${bls_file[$i]}" "options" "${new_args}"
354			fi
355
356			if [[ -n $initrd ]]; then
357			set_bls_value "${bls_file[$i]}" "initrd" "${initrd}"
358			fi
359			done
360			}
361
362			set_default_bls() {
363			local index=($(param_to_indexes "$1"))
364
365			if [[ $bootloader = grub2 ]]; then
366			grub2-editenv "${env}" set saved_entry="${bls_title[$index]}"
367			else
368			local default="${bls_version[$index]}"
369			local current="$(grep '^default=' ${zipl_config} \| sed -e 's/^default=//')"
370			if [[ -n $current ]]; then
371			sed -i -e "s,^default=.*,default=${default}," "${zipl_config}"
372			else
373			echo "default=${default}" >> "${zipl_config}"
374			fi
375			fi
376			}
377
378			remove_var_prefix() {
379			if [[ -n $remove_kernel && $remove_kernel =~ ^/ ]]; then
380			remove_kernel="/${remove_kernel##*/}"
381			fi
382
383			if [[ -n $initrd ]]; then
384			initrd="/${initrd##*/}"
385			fi
386
387			if [[ -n $extra_initrd ]]; then
388			extra_initrd=" /${extra_initrd##*/}"
389			fi
390
391			if [[ -n $kernel ]]; then
392			kernel="/${kernel##*/}"
393			fi
394
395			if [[ -n $update_kernel && $update_kernel =~ ^/ ]]; then
396			update_kernel="/${update_kernel##*/}"
397			fi
398			}
399
400			print_usage()
401			{
402			cat <<EOF
403			Usage: grubby [OPTION...]
404			--add-kernel=kernel-path add an entry for the specified kernel
405			--args=args default arguments for the new kernel or new arguments for kernel being updated)
406			--bad-image-okay don't sanity check images in boot entries (for testing only)
407			-c, --config-file=path path to grub config file to update ("-" for stdin)
408			--copy-default use the default boot entry as a template for the new entry being added; if the default is not a linux image, or if the kernel referenced by the default image does not exist, the
409			first linux entry whose kernel does exist is used as the template
410			--default-kernel display the path of the default kernel
411			--default-index display the index of the default kernel
412			--default-title display the title of the default kernel
413			--env=path path for environment data
414			--grub2 configure grub2 bootloader
415			--info=kernel-path display boot information for specified kernel
416			--initrd=initrd-path initrd image for the new kernel
417			-i, --extra-initrd=initrd-path auxiliary initrd image for things other than the new kernel
418			--make-default make the newly added entry the default boot entry
419			-o, --output-file=path path to output updated config file ("-" for stdout)
420			--remove-args=STRING remove kernel arguments
421			--remove-kernel=kernel-path remove all entries for the specified kernel
422			--set-default=kernel-path make the first entry referencing the specified kernel the default
423			--set-default-index=entry-index make the given entry index the default entry
424			--title=entry-title title to use for the new kernel entry
425			--update-kernel=kernel-path updated information for the specified kernel
426			--zipl configure zipl bootloader
427			-b, --bls-directory path to directory containing the BootLoaderSpec fragment files
428
429			Help options:
430			-?, --help Show this help message
431
432			EOF
433			}
434
435			OPTS="$(getopt -o c:i:o:b:? --long help,add-kernel:,args:,bad-image-okay,\
436			config-file:,copy-default,default-kernel,default-index,default-title,env:,\
437			grub2,info:,initrd:,extra-initrd:,make-default,output-file:,remove-args:,\
438			remove-kernel:,set-default:,set-default-index:,title:,update-kernel:,zipl,\
439			bls-directory:,add-kernel:,add-multiboot:,mbargs:,mounts:,boot-filesystem:,\
440			bootloader-probe,debug,devtree,devtreedir:,elilo,efi,extlinux,grub,lilo,\
441			output-file:,remove-mbargs:,remove-multiboot:,silo,yaboot -n ${SCRIPTNAME} -- "$@")"
442
443			[[ $? = 0 ]] \|\| exit 1
444
445			eval set -- "$OPTS"
446
447			while [ ${#} -gt 0 ]; do
448			case "$1" in
449			--help\|-h)
450			print_usage
451			exit 0
452			;;
453			--add-kernel)
454			kernel="${2}"
455			shift
456			;;
457			--args)
458			args="${2}"
459			shift
460			;;
461			--bad-image-okay)
462			bad_image=true
463			;;
464			--config-file\|-c)
465			zipl_config="${2}"
466			shift
467			;;
468			--copy-default)
469			copy_default=true
470			;;
471			--default-kernel)
472			display_default="kernel"
473			;;
474			--default-index)
475			display_default="index"
476			;;
477			--default-title)
478			display_default="title"
479			;;
480			--env)
481			env="${2}"
482			shift
483			;;
484			--grub2)
485			bootloader="grub2"
486			;;
487			--info)
488			display_info="${2}"
489			shift
490			;;
491			--initrd)
492			initrd="${2}"
493			shift
494			;;
495			--extra-initrd\|-i)
496			extra_initrd=" /${2}"
497			shift
498			;;
499			--make-default)
500			make_default=true
501			;;
502			--output-file\|-o)
503			output_file="${2}"
504			shift
505			;;
506			--remove-args)
507			remove_args="${2}"
508			shift
509			;;
510			--remove-kernel)
511			remove_kernel="${2}"
512			shift
513			;;
514			--set-default)
515			set_default="${2}"
516			shift
517			;;
518			--set-default-index)
519			set_default="${2}"
520			shift
521			;;
522			--title)
523			title="${2}"
524			shift
525			;;
526			--update-kernel)
527			update_kernel="${2}"
528			shift
529			;;
530			--zipl)
531			bootloader="zipl"
532			;;
533			--bls-directory\|-b)
534			blsdir="${2}"
535			shift
536			;;
537			--add-kernel\|--add-multiboot\|--mbargs\|--mounts\|--boot-filesystem\|\
538			--bootloader-probe\|--debug\|--devtree\|--devtreedir\|--elilo\|--efi\|\
539			--extlinux\|--grub\|--lilo\|--output-file\|--remove-mbargs\|--silo\|\
540			--remove-multiboot\|--slilo\|--yaboot)
541			echo
542			echo "${SCRIPTNAME}: the option \"${1}\" was deprecated" >&2
543			echo "Try '${SCRIPTNAME} --help' to list supported options" >&2
544			echo
545			exit 1
546			;;
547			--)
548			shift
549			break
550			;;
551			*)
552			echo
553			echo "${SCRIPTNAME}: invalid option \"${1}\"" >&2
554			echo "Try '${SCRIPTNAME} --help' for more information" >&2
555			echo
556			exit 1
557			;;
558			esac
559			shift
560			done
561
562			if [[ -z $blsdir ]]; then
563			blsdir="/boot/loader/entries"
564			fi
565
566			if [[ -z $env ]]; then
567			env="/boot/grub2/grubenv"
568			fi
569
570			if [[ -z $zipl_config ]]; then
571			zipl_config="/etc/zipl.conf"
572			fi
573
574			get_bls_values
575
576			default_index="$(get_default_index)"
577
578			if [[ -n $display_default ]]; then
579			display_default_value
580			fi
581
582			if [[ -n $display_info ]]; then
583			display_info_values "${display_info}"
584			fi
585
586			if [[ $bootloader = grub2 ]]; then
587			remove_var_prefix
588			fi
589
590			if [[ -n $kernel ]]; then
591			if [[ $copy_default = "true" ]]; then
592			opts="${bls_options[$default_index]}"
593			if [[ -n $args ]]; then
594			opts="${opts} ${args}"
595			fi
596			else
597			opts="${args}"
598			fi
599
600			add_bls_fragment "${kernel}" "${title}" "${opts}" "${initrd}" \
601			"${extra_initrd}"
602			fi
603
604			if [[ -n $remove_kernel ]]; then
605			remove_bls_fragment "${remove_kernel}"
606			fi
607
608			if [[ -n $update_kernel ]]; then
609			update_bls_fragment "${update_kernel}" "${remove_args}" "${args}" "${initrd}"
610			fi
611
612			if [[ -n $set_default ]]; then
613			set_default_bls "${set_default}"
614			fi
615
616			exit 0