Contents of /trunk/grubby/grubby-bls
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Revision 3142 -
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Tue Jul 7 11:15:41 2020 UTC (4 years, 2 months ago) by niro
File size: 16774 byte(s)
Tue Jul 7 11:15:41 2020 UTC (4 years, 2 months ago) by niro
File size: 16774 byte(s)
Use /boot/loader/entries as BLS directory also on EFI systems
1 | #!/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 |
Properties
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svn:executable | * |