Contents of /trunk/grubby/grubby-bls
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Tue Jul 7 11:22:01 2020 UTC (3 years, 10 months ago) by niro
File size: 16996 byte(s)
Tue Jul 7 11:22:01 2020 UTC (3 years, 10 months ago) by niro
File size: 16996 byte(s)
Use ! instead of , as sed delimiter in grubby-bls script
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[$i]}" || "/${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 | update_grubcfg |
239 | } |
240 | |
241 | add_bls_fragment() { |
242 | local kernel="$1" && shift |
243 | local title="$1" && shift |
244 | local options="$1" && shift |
245 | local initrd="$1" && shift |
246 | local extra_initrd="$1" && shift |
247 | |
248 | if [[ $kernel = *"vmlinuz-"* ]]; then |
249 | kernelver="${kernel##*/vmlinuz-}" |
250 | prefix="vmlinuz-" |
251 | else |
252 | kernelver="${kernel##*/}" |
253 | fi |
254 | |
255 | if [[ ! -f "/boot/${prefix}${kernelver}" ]] && |
256 | [[ $bad_image != "true" ]]; then |
257 | print_error "The ${kernelver} kernel isn't installed in the machine" |
258 | fi |
259 | |
260 | if [[ -z $title ]]; then |
261 | print_error "The kernel title must be specified" |
262 | fi |
263 | |
264 | if [[ ! -d $blsdir ]]; then |
265 | install -m 700 -d "${blsdir}" |
266 | fi |
267 | |
268 | bls_target="${blsdir}/${MACHINE_ID}-${kernelver}.conf" |
269 | kernel_dir="/lib/modules/${kernelver}" |
270 | if [[ -f "${kernel_dir}/bls.conf" ]]; then |
271 | cp -aT "${kernel_dir}/bls.conf" "${bls_target}" || exit $? |
272 | else |
273 | if [[ -d $kernel_dir ]]; then |
274 | datetime="$(date -u +%Y%m%d%H%M%S -d "$(stat -c '%y' "${kernel_dir}")")" |
275 | else |
276 | datetime=0 |
277 | fi |
278 | mkbls "${kernel}" "${kernelver}" "${datetime}" > "${bls_target}" |
279 | fi |
280 | |
281 | if [[ -n $title ]]; then |
282 | set_bls_value "${bls_target}" "title" "${title}" |
283 | fi |
284 | |
285 | if [[ -n $options ]]; then |
286 | set_bls_value "${bls_target}" "options" "${options}" |
287 | fi |
288 | |
289 | if [[ -n $initrd ]]; then |
290 | set_bls_value "${bls_target}" "initrd" "${initrd}" |
291 | fi |
292 | |
293 | if [[ -n $extra_initrd ]]; then |
294 | append_bls_value "${bls_target}" "initrd" "${extra_initrd}" |
295 | fi |
296 | |
297 | if [[ $MAKEDEBUG = "yes" ]]; then |
298 | arch="$(uname -m)" |
299 | bls_debug="$(echo ${bls_target} | sed -e "s/\.${arch}/-debug.${arch}/")" |
300 | cp -aT "${bls_target}" "${bls_debug}" |
301 | append_bls_value "${bls_debug}" "title" "${LINUX_DEBUG_TITLE_POSTFIX}" |
302 | append_bls_value "${bls_debug}" "version" "${LINUX_DEBUG_VERSION_POSTFIX}" |
303 | append_bls_value "${bls_debug}" "options" "${CMDLINE_LINUX_DEBUG}" |
304 | blsid="$(get_bls_value ${bls_debug} "id" | sed -e "s/\.${arch}/-debug.${arch}/")" |
305 | set_bls_value "${bls_debug}" "id" "${blsid}" |
306 | fi |
307 | |
308 | get_bls_values |
309 | |
310 | if [[ $make_default = "true" ]]; then |
311 | set_default_bls "TITLE=${title}" |
312 | fi |
313 | |
314 | update_grubcfg |
315 | |
316 | exit 0 |
317 | } |
318 | |
319 | update_args() { |
320 | local args=$1 && shift |
321 | local remove_args=($1) && shift |
322 | local add_args=($1) && shift |
323 | |
324 | for arg in ${remove_args[*]}; do |
325 | args="$(echo $args | sed -e "s!$arg[^ ]*!!")" |
326 | done |
327 | |
328 | for arg in ${add_args[*]}; do |
329 | if [[ $arg = *"="* ]]; then |
330 | value=${arg##*=} |
331 | key=${arg%%=$value} |
332 | exist=$(echo $args | grep "${key}=") |
333 | if [[ -n $exist ]]; then |
334 | args="$(echo $args | sed -e "s!$key=[^ ]*!$key=$value!")" |
335 | else |
336 | args="$args $key=$value" |
337 | fi |
338 | else |
339 | exist=$(echo $args | grep $arg) |
340 | if ! [[ -n $exist ]]; then |
341 | args="$args $arg" |
342 | fi |
343 | fi |
344 | done |
345 | |
346 | echo ${args} |
347 | } |
348 | |
349 | update_bls_fragment() { |
350 | local indexes=($(param_to_indexes "$1")) && shift |
351 | local remove_args=$1 && shift |
352 | local add_args=$1 && shift |
353 | local initrd=$1 && shift |
354 | |
355 | for i in ${indexes[*]}; do |
356 | if [[ -n $remove_args || -n $add_args ]]; then |
357 | local new_args="$(update_args "${bls_options[$i]}" "${remove_args}" "${add_args}")" |
358 | set_bls_value "${bls_file[$i]}" "options" "${new_args}" |
359 | fi |
360 | |
361 | if [[ -n $initrd ]]; then |
362 | set_bls_value "${bls_file[$i]}" "initrd" "${initrd}" |
363 | fi |
364 | done |
365 | |
366 | update_grubcfg |
367 | } |
368 | |
369 | set_default_bls() { |
370 | local index=($(param_to_indexes "$1")) |
371 | |
372 | if [[ $bootloader = grub2 ]]; then |
373 | grub2-editenv "${env}" set saved_entry="${bls_title[$index]}" |
374 | else |
375 | local default="${bls_version[$index]}" |
376 | local current="$(grep '^default=' ${zipl_config} | sed -e 's/^default=//')" |
377 | if [[ -n $current ]]; then |
378 | sed -i -e "s,^default=.*,default=${default}," "${zipl_config}" |
379 | else |
380 | echo "default=${default}" >> "${zipl_config}" |
381 | fi |
382 | fi |
383 | } |
384 | |
385 | remove_var_prefix() { |
386 | if [[ -n $remove_kernel && $remove_kernel =~ ^/ ]]; then |
387 | remove_kernel="/${remove_kernel##*/}" |
388 | fi |
389 | |
390 | if [[ -n $initrd ]]; then |
391 | initrd="/${initrd##*/}" |
392 | fi |
393 | |
394 | if [[ -n $extra_initrd ]]; then |
395 | extra_initrd=" /${extra_initrd##*/}" |
396 | fi |
397 | |
398 | if [[ -n $kernel ]]; then |
399 | kernel="/${kernel##*/}" |
400 | fi |
401 | |
402 | if [[ -n $update_kernel && $update_kernel =~ ^/ ]]; then |
403 | update_kernel="/${update_kernel##*/}" |
404 | fi |
405 | } |
406 | |
407 | update_grubcfg() |
408 | { |
409 | if [[ $arch = 'ppc64' || $arch = 'ppc64le' ]]; then |
410 | grub2-mkconfig -o /boot/grub2/grub.cfg >& /dev/null |
411 | fi |
412 | } |
413 | |
414 | print_usage() |
415 | { |
416 | cat <<EOF |
417 | Usage: grubby [OPTION...] |
418 | --add-kernel=kernel-path add an entry for the specified kernel |
419 | --args=args default arguments for the new kernel or new arguments for kernel being updated) |
420 | --bad-image-okay don't sanity check images in boot entries (for testing only) |
421 | -c, --config-file=path path to grub config file to update ("-" for stdin) |
422 | --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 |
423 | first linux entry whose kernel does exist is used as the template |
424 | --default-kernel display the path of the default kernel |
425 | --default-index display the index of the default kernel |
426 | --default-title display the title of the default kernel |
427 | --env=path path for environment data |
428 | --grub2 configure grub2 bootloader |
429 | --info=kernel-path display boot information for specified kernel |
430 | --initrd=initrd-path initrd image for the new kernel |
431 | -i, --extra-initrd=initrd-path auxiliary initrd image for things other than the new kernel |
432 | --make-default make the newly added entry the default boot entry |
433 | -o, --output-file=path path to output updated config file ("-" for stdout) |
434 | --remove-args=STRING remove kernel arguments |
435 | --remove-kernel=kernel-path remove all entries for the specified kernel |
436 | --set-default=kernel-path make the first entry referencing the specified kernel the default |
437 | --set-default-index=entry-index make the given entry index the default entry |
438 | --title=entry-title title to use for the new kernel entry |
439 | --update-kernel=kernel-path updated information for the specified kernel |
440 | --zipl configure zipl bootloader |
441 | -b, --bls-directory path to directory containing the BootLoaderSpec fragment files |
442 | |
443 | Help options: |
444 | -?, --help Show this help message |
445 | |
446 | EOF |
447 | } |
448 | |
449 | OPTS="$(getopt -o c:i:o:b:? --long help,add-kernel:,args:,bad-image-okay,\ |
450 | config-file:,copy-default,default-kernel,default-index,default-title,env:,\ |
451 | grub2,info:,initrd:,extra-initrd:,make-default,output-file:,remove-args:,\ |
452 | remove-kernel:,set-default:,set-default-index:,title:,update-kernel:,zipl,\ |
453 | bls-directory:,add-kernel:,add-multiboot:,mbargs:,mounts:,boot-filesystem:,\ |
454 | bootloader-probe,debug,devtree,devtreedir:,elilo,efi,extlinux,grub,lilo,\ |
455 | output-file:,remove-mbargs:,remove-multiboot:,silo,yaboot -n ${SCRIPTNAME} -- "$@")" |
456 | |
457 | [[ $? = 0 ]] || exit 1 |
458 | |
459 | eval set -- "$OPTS" |
460 | |
461 | while [ ${#} -gt 0 ]; do |
462 | case "$1" in |
463 | --help|-h) |
464 | print_usage |
465 | exit 0 |
466 | ;; |
467 | --add-kernel) |
468 | kernel="${2}" |
469 | shift |
470 | ;; |
471 | --args) |
472 | args="${2}" |
473 | shift |
474 | ;; |
475 | --bad-image-okay) |
476 | bad_image=true |
477 | ;; |
478 | --config-file|-c) |
479 | zipl_config="${2}" |
480 | shift |
481 | ;; |
482 | --copy-default) |
483 | copy_default=true |
484 | ;; |
485 | --default-kernel) |
486 | display_default="kernel" |
487 | ;; |
488 | --default-index) |
489 | display_default="index" |
490 | ;; |
491 | --default-title) |
492 | display_default="title" |
493 | ;; |
494 | --env) |
495 | env="${2}" |
496 | shift |
497 | ;; |
498 | --grub2) |
499 | bootloader="grub2" |
500 | ;; |
501 | --info) |
502 | display_info="${2}" |
503 | shift |
504 | ;; |
505 | --initrd) |
506 | initrd="${2}" |
507 | shift |
508 | ;; |
509 | --extra-initrd|-i) |
510 | extra_initrd=" /${2}" |
511 | shift |
512 | ;; |
513 | --make-default) |
514 | make_default=true |
515 | ;; |
516 | --output-file|-o) |
517 | output_file="${2}" |
518 | shift |
519 | ;; |
520 | --remove-args) |
521 | remove_args="${2}" |
522 | shift |
523 | ;; |
524 | --remove-kernel) |
525 | remove_kernel="${2}" |
526 | shift |
527 | ;; |
528 | --set-default) |
529 | set_default="${2}" |
530 | shift |
531 | ;; |
532 | --set-default-index) |
533 | set_default="${2}" |
534 | shift |
535 | ;; |
536 | --title) |
537 | title="${2}" |
538 | shift |
539 | ;; |
540 | --update-kernel) |
541 | update_kernel="${2}" |
542 | shift |
543 | ;; |
544 | --zipl) |
545 | bootloader="zipl" |
546 | ;; |
547 | --bls-directory|-b) |
548 | blsdir="${2}" |
549 | shift |
550 | ;; |
551 | --add-kernel|--add-multiboot|--mbargs|--mounts|--boot-filesystem|\ |
552 | --bootloader-probe|--debug|--devtree|--devtreedir|--elilo|--efi|\ |
553 | --extlinux|--grub|--lilo|--output-file|--remove-mbargs|--silo|\ |
554 | --remove-multiboot|--slilo|--yaboot) |
555 | echo |
556 | echo "${SCRIPTNAME}: the option \"${1}\" was deprecated" >&2 |
557 | echo "Try '${SCRIPTNAME} --help' to list supported options" >&2 |
558 | echo |
559 | exit 1 |
560 | ;; |
561 | --) |
562 | shift |
563 | break |
564 | ;; |
565 | *) |
566 | echo |
567 | echo "${SCRIPTNAME}: invalid option \"${1}\"" >&2 |
568 | echo "Try '${SCRIPTNAME} --help' for more information" >&2 |
569 | echo |
570 | exit 1 |
571 | ;; |
572 | esac |
573 | shift |
574 | done |
575 | |
576 | if [[ -z $blsdir ]]; then |
577 | blsdir="/boot/loader/entries" |
578 | fi |
579 | |
580 | if [[ -z $env ]]; then |
581 | env="/boot/grub2/grubenv" |
582 | fi |
583 | |
584 | if [[ -z $zipl_config ]]; then |
585 | zipl_config="/etc/zipl.conf" |
586 | fi |
587 | |
588 | get_bls_values |
589 | |
590 | default_index="$(get_default_index)" |
591 | |
592 | if [[ -n $display_default ]]; then |
593 | display_default_value |
594 | fi |
595 | |
596 | if [[ -n $display_info ]]; then |
597 | display_info_values "${display_info}" |
598 | fi |
599 | |
600 | if [[ $bootloader = grub2 ]]; then |
601 | remove_var_prefix |
602 | fi |
603 | |
604 | if [[ -n $kernel ]]; then |
605 | if [[ $copy_default = "true" ]]; then |
606 | opts="${bls_options[$default_index]}" |
607 | if [[ -n $args ]]; then |
608 | opts="${opts} ${args}" |
609 | fi |
610 | else |
611 | opts="${args}" |
612 | fi |
613 | |
614 | add_bls_fragment "${kernel}" "${title}" "${opts}" "${initrd}" \ |
615 | "${extra_initrd}" |
616 | fi |
617 | |
618 | if [[ -n $remove_kernel ]]; then |
619 | remove_bls_fragment "${remove_kernel}" |
620 | fi |
621 | |
622 | if [[ -n $update_kernel ]]; then |
623 | update_bls_fragment "${update_kernel}" "${remove_args}" "${args}" "${initrd}" |
624 | fi |
625 | |
626 | if [[ -n $set_default ]]; then |
627 | set_default_bls "${set_default}" |
628 | fi |
629 | |
630 | exit 0 |
Properties
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svn:executable | * |