Contents of /trunk/mkinitrd/mkinitrd.sh
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Mon Dec 5 22:45:33 2005 UTC (18 years, 5 months ago) by niro
File MIME type: application/x-sh
File size: 21861 byte(s)
Mon Dec 5 22:45:33 2005 UTC (18 years, 5 months ago) by niro
File MIME type: application/x-sh
File size: 21861 byte(s)
- reimplementet loppback functionality - temporaly reduced image to 4mb
1 | #!/bin/bash |
2 | # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd.sh,v 1.5 2005-12-05 22:45:33 niro Exp $ |
3 | |
4 | # mkinitrd |
5 | # |
6 | # Copyright 2005 Red Hat, Inc. |
7 | # |
8 | # Written by Erik Troan <ewt@redhat.com> |
9 | # |
10 | # Contributors: |
11 | # Elliot Lee <sopwith@cuc.edu> |
12 | # Miguel de Icaza <miguel@nuclecu.unam.mx> |
13 | # Christian 'Dr. Disk' Hechelmann <drdisk@ds9.au.s.shuttle.de> |
14 | # Michael K. Johnson <johnsonm@redhat.com> |
15 | # Pierre Habraken <Pierre.Habraken@ujf-grenoble.fr> |
16 | # Jakub Jelinek <jakub@redhat.com> |
17 | # Carlo Arenas Belon (carenas@chasqui.lared.net.pe> |
18 | # Keith Owens <kaos@ocs.com.au> |
19 | # Bernhard Rosenkraenzer <bero@redhat.com> |
20 | # Matt Wilson <msw@redhat.com> |
21 | # Trond Eivind Glomsrød <teg@redhat.com> |
22 | # Jeremy Katz <katzj@redhat.com> |
23 | # Preston Brown <pbrown@redhat.com> |
24 | # Bill Nottingham <notting@redhat.com> |
25 | # Guillaume Cottenceau <gc@mandrakesoft.com> |
26 | # Peter Jones <pjones@redhat.com> |
27 | |
28 | # heavily modified for magellan-linux by Niels Rogalla <niro@magellan-linux.de> |
29 | |
30 | umask 0022 |
31 | export MALLOC_PERTURB_=204 |
32 | |
33 | PATH=/sbin:/usr/sbin:/bin:/usr/bin:$PATH |
34 | export PATH |
35 | |
36 | VERSION=5.0.8 |
37 | |
38 | PROBE="yes" |
39 | MODULES="" |
40 | PREMODS="" |
41 | |
42 | [ -e /etc/conf.d/mkinitrd ] && . /etc/conf.d/mkinitrd |
43 | |
44 | CONFMODS="${MODULES}" |
45 | MODULES="" |
46 | |
47 | compress=1 |
48 | allowmissing="" |
49 | target="" |
50 | kernel="" |
51 | force="" |
52 | verbose="" |
53 | img_vers="" |
54 | builtins="" |
55 | modulefile=/etc/modules.conf |
56 | rc=0 |
57 | |
58 | IMAGESIZE=4000 |
59 | PRESCSIMODS="sd_mod" |
60 | fstab="/etc/fstab" |
61 | |
62 | vg_list="" |
63 | |
64 | die() { echo "Error: $@"; exit 1; } |
65 | add_initrd() { echo "$@" >> ${DEST}/init || die; } |
66 | |
67 | DEST="$(mktemp -d)" |
68 | IMAGE="$(mktemp)" |
69 | |
70 | usage() |
71 | { |
72 | echo "usage: $(basename $0) [--version] [--help] [-v] [-f] [--preload <module>]" |
73 | echo " [--force-ide-probe] [--force-scsi-probe | --omit-scsi-modules]" |
74 | echo " [--image-version] [--force-scsi-probe | --omit-raid-modules]" |
75 | echo " [--with=<module>] [--force-lvm-probe | --omit-lvm-modules]" |
76 | echo " [--builtin=<module>] " |
77 | echo " [--fstab=<fstab>] [--nocompress] <initrd-image> <kernel-version>" |
78 | echo |
79 | echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)" |
80 | |
81 | exit 0 |
82 | } |
83 | |
84 | moduledep() |
85 | { |
86 | if [ ! -f "/lib/modules/${kernel}/modules.dep" ] |
87 | then |
88 | die "No dep file found for kernel ${kernel}" |
89 | fi |
90 | |
91 | echo "Looking for deps of module $1" |
92 | deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \ |
93 | function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \ |
94 | function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ |
95 | /^\/lib/ { show(); \ |
96 | orig=modname($1); dep=""; \ |
97 | if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \ |
98 | /^ / { dep=sprintf("%s %s", dep, modname($1)); } \ |
99 | END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1) |
100 | [ -n "${deps}" ] && echo ":${deps}" || echo |
101 | } |
102 | |
103 | findone() { /usr/bin/find "$@" | /bin/awk '{ print $1; exit; }'; } |
104 | findall() { /usr/bin/find "$@"; } |
105 | |
106 | findmodule() |
107 | { |
108 | skiperrors="" |
109 | |
110 | if [[ $1 = --skiperrors ]] |
111 | then |
112 | skiperrors=--skiperrors |
113 | shift |
114 | fi |
115 | |
116 | local modName=$1 |
117 | |
118 | if [ "${modName}" = "off" -o "${modName}" = "null" ] |
119 | then |
120 | return |
121 | fi |
122 | |
123 | if [ $(echo ${modName} | cut -b1) = "-" ] |
124 | then |
125 | skiperrors=--skiperrors |
126 | modName=$(echo ${modName} | cut -b2-) |
127 | fi |
128 | |
129 | case "${MODULES} " in |
130 | *"/${modName}.ko "*) return ;; |
131 | esac |
132 | |
133 | if echo ${builtins} | egrep -q '(^| )'${modName}'( |$)' |
134 | then |
135 | echo "module ${modName} assumed to be built in" |
136 | return |
137 | fi |
138 | |
139 | # special cases |
140 | if [[ ${modName} = i2o_block ]] |
141 | then |
142 | findmodule i2o_core |
143 | findmodule -i2o_pci |
144 | modName="i2o_block" |
145 | elif [[ ${modName} = ppa ]] |
146 | then |
147 | findmodule parport |
148 | findmodule parport_pc |
149 | modName="ppa" |
150 | elif [[ ${modName} = sbp2 ]] |
151 | then |
152 | findmodule ieee1394 |
153 | findmodule ohci1394 |
154 | modName="sbp2" |
155 | else |
156 | moduledep ${modName} |
157 | for i in ${deps} |
158 | do |
159 | findmodule ${i} |
160 | done |
161 | fi |
162 | |
163 | for modExt in o.gz o ko |
164 | do |
165 | for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel} |
166 | do |
167 | if [ -d ${modDir} ] |
168 | then |
169 | fmPath=$(findone ${modDir} -name ${modName}.${modExt}) |
170 | if [ -f "${fmPath}" ] |
171 | then |
172 | break 2 |
173 | fi |
174 | fi |
175 | done |
176 | done |
177 | |
178 | if [ ! -f ${fmPath} ] |
179 | then |
180 | if [ -n "${skiperrors}" ] |
181 | then |
182 | return |
183 | fi |
184 | |
185 | # ignore the absence of the scsi modules |
186 | for n in ${PRESCSIMODS} |
187 | do |
188 | if [[ ${n} = ${modName} ]] |
189 | then |
190 | return |
191 | fi |
192 | done |
193 | |
194 | if [ -n "${allowmissing}" ] |
195 | then |
196 | echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway" |
197 | return |
198 | fi |
199 | |
200 | die "No module ${modName} found for kernel ${kernel}, aborting." |
201 | fi |
202 | |
203 | # only need to add each module once |
204 | MODULES="${MODULES} ${fmPath}" |
205 | } |
206 | |
207 | inst() |
208 | { |
209 | if [ "$#" != "2" ] |
210 | then |
211 | echo "usage: inst <file> <destination>" |
212 | return |
213 | fi |
214 | echo "$1 -> $2" |
215 | cp $1 $2 |
216 | } |
217 | |
218 | findstoragedriver() |
219 | { |
220 | for device in $@ |
221 | do |
222 | case " ${handledevices} " in |
223 | *" ${device} "*) continue ;; |
224 | *) handleddevices="${handleddevices} ${device}" ;; |
225 | esac |
226 | |
227 | if [[ "${device}" =~ "md[0-9]+" ]] |
228 | then |
229 | echo "Found RAID component ${device}" |
230 | handleraid "${device}" |
231 | continue |
232 | fi |
233 | echo "Looking for driver for device ${device}" |
234 | sysfs=$(findone /sys/block -name ${device} -type d) |
235 | [ -z "${sysfs}" ] && return |
236 | pushd ${sysfs} >/dev/null 2>&1 |
237 | while [ ! -L device ] |
238 | do |
239 | [[ ${PWD} = /sys ]] && continue 2 |
240 | cd .. |
241 | done |
242 | cd $(readlink ./device) |
243 | while [ ! -f modalias ] |
244 | do |
245 | [[ ${PWD} = /sys/devices ]] && continue 2 |
246 | cd .. |
247 | done |
248 | modalias=$(cat modalias) |
249 | for driver in $(modprobe --set-version ${kernel} --show-depends ${modalias} 2>/dev/null| awk '{ print gensub(".*/","","g",$2) }') |
250 | do |
251 | findmodule ${driver%%.ko} |
252 | done |
253 | popd >/dev/null 2>&1 |
254 | done |
255 | } |
256 | |
257 | handleraid() |
258 | { |
259 | local start=0 |
260 | |
261 | if [ -n "${noraid}" -o ! -f /proc/mdstat ] |
262 | then |
263 | return 0 |
264 | fi |
265 | |
266 | levels=$(grep "^$1[ ]*:" /proc/mdstat | \ |
267 | awk '{ print $4 }') |
268 | devs=$(grep "^$1[ ]*:" /proc/mdstat | \ |
269 | awk '{ print gensub("\\[[0-9]*\\]","","g",gensub("^md.*raid[0-9]*","","1")) }') |
270 | |
271 | for level in ${levels} |
272 | do |
273 | case ${level} in |
274 | linear) |
275 | findmodule linear |
276 | start=1 |
277 | ;; |
278 | multipath) |
279 | findmodule multipath |
280 | start=1 |
281 | ;; |
282 | raid[01456]) |
283 | findmodule ${level} |
284 | start=1 |
285 | ;; |
286 | *) |
287 | error "raid level ${level} (in /proc/mdstat) not recognized" |
288 | ;; |
289 | esac |
290 | done |
291 | findstoragedriver ${devs} |
292 | if [[ ${start} = 1 ]] |
293 | then |
294 | raiddevices="${raiddevices} $1" |
295 | fi |
296 | return ${start} |
297 | } |
298 | |
299 | handlelvordev() |
300 | { |
301 | local vg=$(lvs --noheadings -o vg_name $1 2>/dev/null) |
302 | if [ -n "${vg}" ] |
303 | then |
304 | vg=$(echo ${vg}) # strip whitespace |
305 | case " ${vg_list} " in |
306 | *" ${vg} "*) |
307 | ;; |
308 | *) |
309 | vg_list="${vg_list} ${vg}" |
310 | for device in $(vgdisplay -v ${vg} 2>/dev/null | sed -n 's/PV Name//p') |
311 | do |
312 | findstoragedriver ${device##/dev/} |
313 | done |
314 | ;; |
315 | esac |
316 | else |
317 | findstoragedriver ${1##/dev/} |
318 | fi |
319 | } |
320 | |
321 | # need r00t privs |
322 | [[ $(id -u) != 0 ]] && die "you must be r00t." |
323 | |
324 | while [ $# -gt 0 ]; do |
325 | case $1 in |
326 | --fstab*) |
327 | if echo $1 | grep -q '=' ; then |
328 | fstab=$(echo $1 | sed 's/^--fstab=//') |
329 | else |
330 | fstab=$2 |
331 | shift |
332 | fi |
333 | ;; |
334 | |
335 | --with-usb) withusb=yes ;; |
336 | |
337 | --with*) |
338 | if echo $1 | grep -q '=' ; then |
339 | modname=$(echo $1 | sed 's/^--with=//') |
340 | else |
341 | modname=$2 |
342 | shift |
343 | fi |
344 | basicmodules="${basicmodules} ${modname}" |
345 | ;; |
346 | |
347 | --builtin*) |
348 | if echo $1 | grep -q '=' ; then |
349 | modname=$(echo $1 | sed 's/^--builtin=//') |
350 | else |
351 | modname=$2 |
352 | shift |
353 | fi |
354 | builtins="${builtins} ${modname}" |
355 | ;; |
356 | |
357 | --version) |
358 | echo "mkinitrd: version ${VERSION}" |
359 | exit 0 |
360 | ;; |
361 | |
362 | -v) verbose=-v ;; |
363 | --nocompress) compress="" ;; |
364 | --ifneeded) |
365 | # legacy |
366 | ;; |
367 | -f) force=1 ;; |
368 | |
369 | --preload*) |
370 | if echo $1 | grep -q '=' ; then |
371 | modname=$(echo $1 | sed 's/^--preload=//') |
372 | else |
373 | modname=$2 |
374 | shift |
375 | fi |
376 | PREMODS="${PREMODS} ${modname}" |
377 | ;; |
378 | |
379 | --force-scsi-probe) forcescsi=1 ;; |
380 | |
381 | --omit-scsi-modules) |
382 | PRESCSIMODS="" |
383 | noscsi=1 |
384 | ;; |
385 | --force-raid-probe) forceraid=1 ;; |
386 | --omit-raid-modules) noraid=1 ;; |
387 | --force-lvm-probe) forcelvm=1 ;; |
388 | --omit-lvm-modules) nolvm=1 ;; |
389 | --force-ide-probe) forceide=1 ;; |
390 | --image-version) img_vers=yes ;; |
391 | --allow-missing) allowmissing=yes ;; |
392 | --noresume) noresume=1 ;; |
393 | --help) usage -n ;; |
394 | --initramfs) IMAGE_TYPE=initramfs ;; |
395 | --loopback) IMAGE_TYPE=loopback ;; |
396 | *) |
397 | if [ -z "${target}" ] |
398 | then |
399 | target=$1 |
400 | elif [ -z "${kernel}" ] |
401 | then |
402 | kernel=$1 |
403 | else |
404 | usage |
405 | fi |
406 | ;; |
407 | esac |
408 | |
409 | shift |
410 | done |
411 | |
412 | # enforce loopback method as default |
413 | [[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=loopback |
414 | |
415 | if [ -z "${target}" -o -z "${kernel}" ] |
416 | then |
417 | usage |
418 | fi |
419 | |
420 | if [ -n "${img_vers}" ] |
421 | then |
422 | target="${target}-${kernel}" |
423 | fi |
424 | |
425 | if [ -z "${force}" -a -f ${target} ] |
426 | then |
427 | die "${target} already exists." |
428 | fi |
429 | |
430 | if [ -n "${forcescsi}" -a -n "${noscsi}" ] |
431 | then |
432 | die "Can't both force scsi probe and omit scsi modules" |
433 | fi |
434 | |
435 | if [ -n "${forceraid}" -a -n "${noraid}" ] |
436 | then |
437 | die "Can't both force raid probe and omit raid modules" |
438 | fi |
439 | |
440 | if [ -n "${forcelvm}" -a -n "${nolvm}" ] |
441 | then |
442 | die "Can't both force LVM probe and omit LVM modules" |
443 | fi |
444 | |
445 | if [ ! -d /lib/modules/${kernel} ] |
446 | then |
447 | die "No modules available for kernel '${kernel}'." |
448 | fi |
449 | |
450 | ############################## |
451 | ####### get modules ########## |
452 | |
453 | echo "Creating ${IMAGE_TYPE} initrd image" |
454 | modulefile=/etc/modprobe.conf |
455 | |
456 | for n in ${PREMODS} |
457 | do |
458 | findmodule ${n} |
459 | done |
460 | |
461 | needusb="" |
462 | if [ -n "${withusb}" -a "x${PROBE}" == "xyes" ] |
463 | then |
464 | # If / or /boot is on a USB device include the driver. With root by |
465 | # label we could still get some odd behaviors |
466 | for fs in / /boot |
467 | do |
468 | esc=$(echo ${fs} | sed 's,/,\\/,g') |
469 | dev=$(mount | awk "/ on ${esc} / { print \$1 }" | sed 's/[0-9]*$//' | cut -d/ -f3) |
470 | if [ "$(echo ${dev} | cut -c1-2)" = sd ] |
471 | then |
472 | if [ $(which kudzu 2>/dev/null) ] |
473 | then |
474 | host=$(kudzu --probe -b scsi | |
475 | gawk '/^device: '${dev}'/,/^host:/ { if (/^host/) { print $2; exit; } }') |
476 | if [ -d /proc/scsi/usb-storage-${host} -o -f /proc/scsi/usb-storage/${host} ] |
477 | then |
478 | needusb=1 |
479 | fi |
480 | fi |
481 | fi |
482 | done |
483 | fi |
484 | |
485 | if [ -n "${needusb}" -a "x${PROBE}" == "xyes" ] |
486 | then |
487 | drivers=$(awk '/^alias[[:space:]]+usb-controller[0-9]* / { print $3}' < ${modulefile}) |
488 | if [ -n "${drivers}" ] |
489 | then |
490 | for driver in ${drivers} |
491 | do |
492 | findmodule ${driver} |
493 | done |
494 | findmodule scsi_mod |
495 | findmodule sd_mod |
496 | findmodule usb-storage |
497 | fi |
498 | fi |
499 | |
500 | if [ -n "${forcescsi}" -o -z "${noscsi}" -a "x${PROBE}" == "xyes" ] |
501 | then |
502 | if [ ! -f ${modulefile} ] |
503 | then |
504 | modulefile=/etc/conf.modules |
505 | fi |
506 | |
507 | if [ -f ${modulefile} ] |
508 | then |
509 | scsimodules=$(grep "alias[[:space:]]\+scsi_hostadapter" ${modulefile} | grep -v '^[ ]*#' | LC_ALL=C sort -u | awk '{ print $3 }') |
510 | |
511 | if [ -n "${scsimodules}" ] |
512 | then |
513 | for n in ${PRESCSIMODS} |
514 | do |
515 | findmodule ${n} |
516 | done |
517 | |
518 | for n in ${scsimodules} |
519 | do |
520 | # for now allow scsi modules to come from anywhere. There are some |
521 | # RAID controllers with drivers in block/ |
522 | findmodule ${n} |
523 | done |
524 | fi |
525 | fi |
526 | fi |
527 | |
528 | # If we have ide devices and module ide, do the right thing |
529 | ide=/proc/ide/ide* |
530 | if [ -n "${forceide}" -o -n "${ide}" -a "x${PROBE}" == "xyes" ] |
531 | then |
532 | findmodule -ide-disk |
533 | fi |
534 | |
535 | # If we have dasd devices, include the necessary modules (S/390) |
536 | if [ "x${PROBE}" == "xyes" -a -d /proc/dasd ] |
537 | then |
538 | findmodule -dasd_mod |
539 | findmodule -dasd_eckd_mod |
540 | findmodule -dasd_fba_mod |
541 | fi |
542 | |
543 | if [ "x${PROBE}" == "xyes" ] |
544 | then |
545 | # check to see if we need to set up a loopback filesystem |
546 | rootdev=$(awk '/^[ \t]*[^#]/ { if ($2 == "/") { print $1; }}' ${fstab}) |
547 | # check if it's root by label |
548 | if echo ${rootdev} | cut -c1-6 | grep -q "LABEL=" |
549 | then |
550 | majmin=$(stat -c "%t:%T" /dev/root) |
551 | if [ -n "${majmin}" ] |
552 | then |
553 | dev=$(findall /sys/block -name dev | while read device ; do \ |
554 | echo "${majmin}" | cmp -s ${device} && echo ${device} ; done \ |
555 | | sed -e 's,.*/\([^/]\+\)/dev,\1,' ) |
556 | if [ -n "${dev}" ]; then |
557 | echo "Found root device ${dev} for ${rootdev}" |
558 | rootdev=${dev} |
559 | fi |
560 | fi |
561 | fi |
562 | if echo ${rootdev} | cut -d/ -f3 | grep -q loop |
563 | then |
564 | key="^# $(echo ${rootdev} | cut -d/ -f3 | tr '[a-z]' '[A-Z]'):" |
565 | if ! grep "${key}" ${fstab} >> /dev/null |
566 | then |
567 | echo "The root filesystem is on a ${rootdev}, but there is no magic entry in ${fstab}" |
568 | echo "for this device. Consult the mkinitrd man page for more information" |
569 | echo "loopback root." |
570 | exit 1 |
571 | fi |
572 | |
573 | line=$(grep "${key}" ${fstab}) |
574 | loopDev=$(echo ${line} | awk '{print $3}') |
575 | loopFs=$(echo ${line} | awk '{print $4}') |
576 | loopFile=$(echo ${line} | awk '{print $5}') |
577 | |
578 | basicmodules="${basicmodules} -loop" |
579 | if [ "${loopFs}" = "vfat" -o "${loopFs}" = "msdos" ] |
580 | then |
581 | basicmodules="${basicmodules} -fat" |
582 | fi |
583 | basicmodules="${basicmodules} -${loopFs}" |
584 | # check if the root fs is on a logical volume |
585 | # this check must be last |
586 | else |
587 | handlelvordev ${rootdev} |
588 | fi |
589 | |
590 | rootfs=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $3; }}' ${fstab}) |
591 | rootopts=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $4; }}' ${fstab}\ |
592 | | sed -e 's/^r[ow],//' -e 's/,r[ow],$//' -e 's/,r[ow],/,/' \ |
593 | -e 's/^r[ow]$/defaults/' -e 's/$/,ro/') |
594 | |
595 | # in case the root filesystem is modular |
596 | findmodule -${rootfs} |
597 | |
598 | # find the first swap dev which would get used for swsusp |
599 | swsuspdev=$(awk '/^[ \t]*[^#]/ { if ($3 == "swap") { print $1; }}' ${fstab} \ |
600 | | head -n 1) |
601 | if ! echo ${swsuspdev} | cut -c1-6 | grep -q "LABEL=" |
602 | then |
603 | handlelvordev ${swsupdev} |
604 | fi |
605 | fi |
606 | |
607 | # If we use LVM or dm-based raid, include dm-mod |
608 | # XXX: dm not really supported yet. |
609 | testdm="" |
610 | [ -n "${vg_list}" ] && testdm="yes" |
611 | [ -n "${forceraid}" -o -n "${forcelvm}" ] && testdm="yes" |
612 | [ "x${PROBE}" == "xyes" -a \ |
613 | -n "$(test -z \"${nolvm}\" -o -z \"${noraid}\")" ] && testdm="yes" |
614 | |
615 | if [ -n "${testdm}" ] |
616 | then |
617 | if [ -x /sbin/dmsetup -a -e /dev/mapper/control ] |
618 | then |
619 | dmout=$(/sbin/dmsetup ls 2>/dev/null) |
620 | if [ "${dmout}" != "No devices found" -a "${dmout}" != "" ] |
621 | then |
622 | findmodule -dm-mod |
623 | |
624 | # DM requires all of these to be there in case someone used the |
625 | # feature. broken. (#132001) |
626 | findmodule -dm-mirror |
627 | findmodule -dm-zero |
628 | findmodule -dm-snapshot |
629 | fi |
630 | fi |
631 | fi |
632 | |
633 | for n in ${basicmodules} |
634 | do |
635 | findmodule ${n} |
636 | done |
637 | |
638 | for n in ${CONFMODS} |
639 | do |
640 | findmodule ${n} |
641 | done |
642 | |
643 | echo "Using modules:${MODULES}" |
644 | |
645 | ####### eof modules ########## |
646 | ############################## |
647 | |
648 | |
649 | # create basic filesystem layout |
650 | install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sys,sysroot} || die |
651 | |
652 | # install busybox |
653 | echo "$(which busybox.mkinitrd)" |
654 | install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die |
655 | for i in '[' ash basename cat cut chroot clear cp dirname echo env false find \ |
656 | grep gunzip gzip init ln ls loadkmap losetup mkdir mknod modprobe more mount mv \ |
657 | pivot_root ps pwd rm rmdir sh sleep test touch true umount uname \ |
658 | xargs yes chmod chown |
659 | do |
660 | # static links |
661 | ln ${DEST}/bin/busybox ${DEST}/bin/${i} || die "${i}" |
662 | done |
663 | |
664 | # install run-init |
665 | echo "$(which run-init.mkinitrd)" |
666 | install -m0755 $(which run-init.mkinitrd) ${DEST}/bin/run-init || die |
667 | |
668 | # install insmod.static |
669 | echo "$(which insmod.static)" |
670 | install -m0755 $(which insmod.static) ${DEST}/bin/insmod || die |
671 | |
672 | # install udev |
673 | cp -a /etc/udev ${DEST}/etc || die |
674 | install -m0755 /sbin/udev.static ${DEST}/bin/udev || die |
675 | install -m0755 /sbin/udevd.static ${DEST}/bin/udevd || die |
676 | install -m0755 /sbin/udevstart.static ${DEST}/bin/udevstart || die |
677 | |
678 | # install lvm |
679 | if [ -n "${vg_list}" ] |
680 | then |
681 | inst /sbin/lvm.static "${DEST}/bin/lvm" |
682 | if [ -f /etc/lvm/lvm.conf ] |
683 | then |
684 | cp ${verbose} --parents /etc/lvm/lvm.conf ${DEST}/ |
685 | fi |
686 | fi |
687 | |
688 | # create some needed device nodes |
689 | mkdir ${DEST}/dev/mapper || die |
690 | mknod ${DEST}/dev/console c 5 1 || die |
691 | mknod ${DEST}/dev/null c 1 3 || die |
692 | mknod ${DEST}/dev/ram b 1 1 || die |
693 | mknod ${DEST}/dev/rtc c 10 135 || die |
694 | mknod ${DEST}/dev/systty c 4 0 || die |
695 | mknod ${DEST}/dev/tty c 5 0 || die |
696 | mknod ${DEST}/dev/zero c 1 5 || die |
697 | for ((i=0; i < 13; i++)) |
698 | do |
699 | mknod ${DEST}/dev/tty${i} c 4 ${i} || die "tty${i}" |
700 | done |
701 | for ((i=64; i < 68; i++)) |
702 | do |
703 | mknod ${DEST}/dev/ttyS$((${i} - 64)) c 4 ${i} || die "ttyS$((${i} - 64))" |
704 | done |
705 | |
706 | # create init script |
707 | :> ${DEST}/init || die |
708 | add_initrd '#!/bin/sh' |
709 | |
710 | add_initrd 'mount -t proc proc /proc' |
711 | add_initrd 'mount -t sysfs sysfs /sys' |
712 | |
713 | [[ ${IMAGE_TYPE} = loopback ]] && add_initrd 'mount -t ramfs -o remount,rw /dev/ram /' |
714 | |
715 | add_initrd 'echo "-- Creating inital device nodes ..."' |
716 | add_initrd 'mount -o mode=0755 -t tmpfs udev /dev' |
717 | add_initrd 'mkdir /dev/pts' |
718 | add_initrd 'mkdir /dev/shm' |
719 | add_initrd 'mkdir /dev/mapper' |
720 | add_initrd 'mknod /dev/console c 5 1' |
721 | add_initrd 'mknod /dev/null c 1 3' |
722 | add_initrd 'mknod /dev/ram b 1 1' |
723 | add_initrd 'mknod /dev/rtc c 10 135' |
724 | add_initrd 'mknod /dev/systty c 4 0' |
725 | add_initrd 'mknod /dev/tty c 5 0' |
726 | add_initrd 'mknod /dev/zero c 1 5' |
727 | for (( i=0; i < 13; i++ )); do |
728 | add_initrd "mknod /dev/tty${i} c 4 ${i}" |
729 | done |
730 | for (( i=64; i < 68; i++)); do |
731 | add_initrd "mknod /dev/ttyS$((${i} - 64)) c 4 ${i}" |
732 | done |
733 | |
734 | add_initrd 'echo "-- Starting udevd ..."' |
735 | add_initrd 'ln -snf bin /sbin' |
736 | add_initrd '/sbin/udevstart' |
737 | add_initrd 'ln -snf /proc/self/fd /dev/fd' |
738 | add_initrd 'ln -snf fd/0 /dev/stdin' |
739 | add_initrd 'ln -snf fd/1 /dev/stdout' |
740 | add_initrd 'ln -snf fd/2 /dev/stderr' |
741 | add_initrd 'ln -snf /proc/kcore /dev/core' |
742 | add_initrd 'touch /dev/.udev' |
743 | |
744 | add_initrd 'echo "-- Setting up hotplug ..."' |
745 | add_initrd 'echo "/sbin/hotplug" > /proc/sys/kernel/hotplug' |
746 | # add_initrd 'for i in $(find /lib -type f -name *.ko)' |
747 | # add_initrd 'do' |
748 | # add_initrd ' echo "-- Loading module ${i}"' |
749 | # add_initrd ' insmod ${i};' |
750 | # # handle special cases like usb |
751 | # add_initrd ' if [ "${i}" = "usb-storage" ]' |
752 | # add_initrd ' then' |
753 | # add_initrd ' echo "Waiting 8 seconds for usb-driver initialization."' |
754 | # add_initrd ' sleep 8' |
755 | # add_initrd ' fi' |
756 | # add_initrd 'done' |
757 | |
758 | # loading detected modules with options |
759 | for MODULE in ${MODULES} |
760 | do |
761 | text="" |
762 | module=$(echo ${MODULE} | sed "s|.*/||" | sed "s/.k\?o$//") |
763 | fullmodule=$(echo ${MODULE} | sed "s|.*/||") |
764 | |
765 | options=$(sed -n -e "s/^options[ ][ ]*${module}[ ][ ]*//p" ${modulefile} 2>/dev/null) |
766 | |
767 | if [ -n "${options}" ] |
768 | then |
769 | echo "Adding module ${module}${text} with options ${options} ..." |
770 | else |
771 | echo "Adding module ${module}${text} ..." |
772 | fi |
773 | |
774 | add_initrd "echo \"-- Loading ${fullmodule} module\"" |
775 | add_initrd "insmod /lib/${fullmodule} ${options}" |
776 | |
777 | # Hack - we need a delay after loading usb-storage to give things |
778 | # time to settle down before we start looking a block devices |
779 | if [ "${module}" = "usb-storage" ] |
780 | then |
781 | add_initrd 'echo Waiting 8 seconds for driver initialization.' |
782 | add_initrd 'sleep 8' |
783 | fi |
784 | if [ "${module}" = "zfcp" -a -f /etc/zfcp.conf ] |
785 | then |
786 | add_initrd 'echo Waiting 2 seconds for driver initialization.' |
787 | add_initrd 'sleep 2' |
788 | cat /etc/zfcp.conf | grep -v "^#" | tr "A-Z" "a-z" | while read DEVICE SCSIID WWPN SCSILUN FCPLUN |
789 | do |
790 | add_initrd "echo -n ${WWPN} > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/port_add" |
791 | add_initrd "echo -n ${FCPLUN} > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/${WWPN}/unit_add" |
792 | add_initrd "echo -n 1 > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/online" |
793 | done |
794 | fi |
795 | done |
796 | |
797 | # lvm support |
798 | if [ -n "${vg_list}" ] |
799 | then |
800 | add_initrd 'echo Scanning logical volumes' |
801 | add_initrd 'lvm vgscan --ignorelockingfailure' |
802 | add_initrd 'echo Activating logical volumes' |
803 | add_initrd "lvm vgchange -ay --ignorelockingfailure ${vg_list}" |
804 | fi |
805 | |
806 | # loopback support |
807 | if [ -n "${loopDev}" ] |
808 | then |
809 | # needed on the host system |
810 | install -d /initrd |
811 | cp -a ${loopDev} ${DEST}/dev || die |
812 | cp -a ${rootdev} ${DEST}/dev || die |
813 | add_initrd 'echo "Mounting device containing loopback root filesystem ..."' |
814 | add_initrd "mount -t ${loopFs} ${loopDev} /loopfs" |
815 | add_initrd "echo Setting up loopback device ${rootdev}" |
816 | add_initrd "losetup ${rootdev} /loopfs${loopFile}" |
817 | fi |
818 | |
819 | # software suspend |
820 | if [ -z "${noresume}" ] |
821 | then |
822 | add_initrd "resume ${swsuspdev}" |
823 | fi |
824 | |
825 | # raid |
826 | if [ -n "${raiddevices}" ] |
827 | then |
828 | for dev in ${raiddevices} |
829 | do |
830 | cp -a /dev/${dev} ${DEST}/dev || die |
831 | add_initrd "raidautorun /dev/${dev}" |
832 | done |
833 | fi |
834 | |
835 | add_initrd 'echo "-- Mounting sysroot ..."' |
836 | add_initrd '. /etc/rootdev' |
837 | add_initrd '[ ! -e ${device} ] && mknod ${device} b ${major} ${minor}' |
838 | add_initrd 'echo "${device} /sysroot ${rootfs} defaults,ro 0 0" > /etc/fstab' |
839 | add_initrd 'mount /sysroot' |
840 | |
841 | add_initrd 'echo "-- Switching to real sysroot ..."' |
842 | add_initrd 'umount /sys' |
843 | add_initrd 'umount /proc' |
844 | |
845 | [[ ${IMAGE_TYPE} = initramfs ]] && add_initrd 'exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console' |
846 | if [[ ${IMAGE_TYPE} = loopback ]] |
847 | then |
848 | add_initrd 'cd /sysroot' |
849 | add_initrd 'pivot_root . initrd' |
850 | add_initrd "exec /sbin/chroot . sh -c 'umount -n /initrd >/dev/null 2>&1;exec -a init.new /sbin/init'</dev/console >/dev/console 2>&1" |
851 | fi |
852 | |
853 | chmod +x ${DEST}/init || die |
854 | |
855 | # setup root block device |
856 | [[ -z ${rootdev} ]] && die "no known rootdev found." |
857 | echo "device=${rootdev}" > ${DEST}/etc/rootdev || die |
858 | echo "major=$(stat -c %t ${rootdev})" >> ${DEST}/etc/rootdev || die |
859 | echo "minor=$(stat -c %T ${rootdev})" >> ${DEST}/etc/rootdev || die |
860 | echo "rootfs=${rootfs}" >> ${DEST}/etc/rootdev || die |
861 | |
862 | # install detected modules |
863 | echo "Coping your modules to '${DEST}/lib' ..." |
864 | for MODULE in ${MODULES} |
865 | do |
866 | if [ -x /usr/bin/strip ] |
867 | then |
868 | /usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die |
869 | else |
870 | cp ${verbose} -a ${MODULE} ${DEST}/lib || die |
871 | fi |
872 | done |
873 | |
874 | # create the image |
875 | echo "Creating initrd image '${target}' ..." |
876 | if [[ ${IMAGE_TYPE} = initramfs ]] |
877 | then |
878 | (cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE}) |
879 | cat ${IMAGE} > ${target} || die |
880 | fi |
881 | |
882 | if [[ ${IMAGE_TYPE} = loopback ]] |
883 | then |
884 | MOUNTTMP="$(mktemp -d)" |
885 | |
886 | # create ext2 img |
887 | dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die |
888 | mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die |
889 | mount -o loop ${IMAGE} ${MOUNTTMP} || die |
890 | mv ${DEST}/* ${MOUNTTMP} || die |
891 | umount ${MOUNTTMP} || die |
892 | gzip -9 ${IMAGE} || die |
893 | cat ${IMAGE}.gz > ${target} || die |
894 | [ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP} |
895 | |
896 | # create inird dir for pivot_root |
897 | [ ! -d /initrd ] && { install -d /initrd || die; } |
898 | fi |
899 | |
900 | # clean up |
901 | [ -d ${DEST} ] && rm -rf ${DEST} |
902 | [ -f ${IMAGE} ] && rm -f ${IMAGE} |