Contents of /tags/mkinitrd-6_1_11/mkinitrd.in
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Wed Jun 11 22:10:48 2008 UTC (16 years, 3 months ago) by niro
Original Path: trunk/mkinitrd-magellan/mkinitrd.in
File size: 22084 byte(s)
Wed Jun 11 22:10:48 2008 UTC (16 years, 3 months ago) by niro
Original Path: trunk/mkinitrd-magellan/mkinitrd.in
File size: 22084 byte(s)
-fixed a typo
1 | #!/bin/bash |
2 | # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd-magellan/mkinitrd.in,v 1.3 2008-06-11 22:10:48 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:$PATH |
34 | export PATH |
35 | |
36 | VERSION=%VERSIONTAG% |
37 | |
38 | PROBE="yes" |
39 | MODULES="" |
40 | PREMODS="" |
41 | NOSTRIP=false |
42 | |
43 | [ -e /etc/conf.d/mkinitrd ] && . /etc/conf.d/mkinitrd |
44 | |
45 | CONFMODS="${MODULES}" |
46 | MODULES="" |
47 | |
48 | compress=1 |
49 | allowmissing="" |
50 | target="" |
51 | kernel="" |
52 | force="" |
53 | verbose="" |
54 | img_vers="" |
55 | builtins="" |
56 | modulefile=/etc/modules.conf |
57 | rc=0 |
58 | |
59 | IMAGESIZE=4000 |
60 | PRESCSIMODS="sd_mod" |
61 | fstab="/etc/fstab" |
62 | |
63 | vg_list="" |
64 | |
65 | die() { echo "Error: $@"; exit 1; } |
66 | add_initrd() { echo "$@" >> ${DEST}/init || die; } |
67 | |
68 | DEST="$(mktemp -d)" |
69 | IMAGE="$(mktemp)" |
70 | |
71 | usage() |
72 | { |
73 | echo "usage: $(basename $0) [--version] [--help] [-v] [-f] [--preload <module>]" |
74 | echo " [--force-ide-probe] [--force-scsi-probe | --omit-scsi-modules]" |
75 | echo " [--image-version] [--force-scsi-probe | --omit-raid-modules]" |
76 | echo " [--with=<module>] [--force-lvm-probe | --omit-lvm-modules]" |
77 | echo " [--builtin=<module>] [--initramfs | --loopback] [--no-strip]" |
78 | echo " [--fstab=<fstab>] [--nocompress] <initrd-image> <kernel-version>" |
79 | echo |
80 | echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)" |
81 | |
82 | exit 0 |
83 | } |
84 | |
85 | moduledep() |
86 | { |
87 | if [ ! -f "/lib/modules/${kernel}/modules.dep" ] |
88 | then |
89 | die "No dep file found for kernel ${kernel}" |
90 | fi |
91 | |
92 | echo "Looking for deps of module $1" |
93 | deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \ |
94 | function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \ |
95 | function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ |
96 | /^\/lib/ { show(); \ |
97 | orig=modname($1); dep=""; \ |
98 | if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \ |
99 | /^ / { dep=sprintf("%s %s", dep, modname($1)); } \ |
100 | END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1) |
101 | [ -n "${deps}" ] && echo ":${deps}" || echo |
102 | } |
103 | |
104 | findone() { /usr/bin/find "$@" | /bin/awk '{ print $1; exit; }'; } |
105 | findall() { /usr/bin/find "$@"; } |
106 | |
107 | findmodule() |
108 | { |
109 | skiperrors="" |
110 | |
111 | if [[ $1 = --skiperrors ]] |
112 | then |
113 | skiperrors=--skiperrors |
114 | shift |
115 | fi |
116 | |
117 | local modName=$1 |
118 | |
119 | if [ "${modName}" = "off" -o "${modName}" = "null" ] |
120 | then |
121 | return |
122 | fi |
123 | |
124 | if [ $(echo ${modName} | cut -b1) = "-" ] |
125 | then |
126 | skiperrors=--skiperrors |
127 | modName=$(echo ${modName} | cut -b2-) |
128 | fi |
129 | |
130 | case "${MODULES} " in |
131 | *"/${modName}.ko "*) return ;; |
132 | esac |
133 | |
134 | if echo ${builtins} | egrep -q '(^| )'${modName}'( |$)' |
135 | then |
136 | echo "module ${modName} assumed to be built in" |
137 | return |
138 | fi |
139 | |
140 | # special cases |
141 | if [[ ${modName} = i2o_block ]] |
142 | then |
143 | findmodule i2o_core |
144 | findmodule -i2o_pci |
145 | modName="i2o_block" |
146 | elif [[ ${modName} = ppa ]] |
147 | then |
148 | findmodule parport |
149 | findmodule parport_pc |
150 | modName="ppa" |
151 | elif [[ ${modName} = sbp2 ]] |
152 | then |
153 | findmodule ieee1394 |
154 | findmodule ohci1394 |
155 | modName="sbp2" |
156 | else |
157 | moduledep ${modName} |
158 | for i in ${deps} |
159 | do |
160 | findmodule ${i} |
161 | done |
162 | fi |
163 | |
164 | for modExt in o.gz o ko |
165 | do |
166 | for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel} |
167 | do |
168 | if [ -d ${modDir} ] |
169 | then |
170 | fmPath=$(findone ${modDir} -name ${modName}.${modExt}) |
171 | if [ -f "${fmPath}" ] |
172 | then |
173 | break 2 |
174 | fi |
175 | fi |
176 | done |
177 | done |
178 | |
179 | if [ ! -f ${fmPath} ] |
180 | then |
181 | if [ -n "${skiperrors}" ] |
182 | then |
183 | return |
184 | fi |
185 | |
186 | # ignore the absence of the scsi modules |
187 | for n in ${PRESCSIMODS} |
188 | do |
189 | if [[ ${n} = ${modName} ]] |
190 | then |
191 | return |
192 | fi |
193 | done |
194 | |
195 | if [ -n "${allowmissing}" ] |
196 | then |
197 | echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway" |
198 | return |
199 | fi |
200 | |
201 | die "No module ${modName} found for kernel ${kernel}, aborting." |
202 | fi |
203 | |
204 | # only need to add each module once |
205 | MODULES="${MODULES} ${fmPath}" |
206 | } |
207 | |
208 | inst() |
209 | { |
210 | if [ "$#" != "2" ] |
211 | then |
212 | echo "usage: inst <file> <destination>" |
213 | return |
214 | fi |
215 | echo "$1 -> $2" |
216 | cp $1 $2 |
217 | } |
218 | |
219 | findstoragedriver() |
220 | { |
221 | for device in $@ |
222 | do |
223 | case " ${handledevices} " in |
224 | *" ${device} "*) continue ;; |
225 | *) handleddevices="${handleddevices} ${device}" ;; |
226 | esac |
227 | |
228 | if [[ "${device}" =~ "md[0-9]+" ]] |
229 | then |
230 | echo "Found RAID component ${device}" |
231 | handleraid "${device}" |
232 | continue |
233 | fi |
234 | echo "Looking for driver for device ${device}" |
235 | sysfs=$(findone /sys/block -name ${device} -type d) |
236 | [ -z "${sysfs}" ] && return |
237 | pushd ${sysfs} >/dev/null 2>&1 |
238 | while [ ! -L device ] |
239 | do |
240 | [[ ${PWD} = /sys ]] && continue 2 |
241 | cd .. |
242 | done |
243 | cd $(readlink ./device) |
244 | while [ ! -f modalias ] |
245 | do |
246 | [[ ${PWD} = /sys/devices ]] && continue 2 |
247 | cd .. |
248 | done |
249 | modalias=$(cat modalias) |
250 | for driver in $(modprobe --set-version ${kernel} --show-depends ${modalias} 2>/dev/null| awk '{ print gensub(".*/","","g",$2) }') |
251 | do |
252 | findmodule ${driver%%.ko} |
253 | done |
254 | popd >/dev/null 2>&1 |
255 | done |
256 | } |
257 | |
258 | handleraid() |
259 | { |
260 | local start=0 |
261 | |
262 | if [ -n "${noraid}" -o ! -f /proc/mdstat ] |
263 | then |
264 | return 0 |
265 | fi |
266 | |
267 | levels=$(grep "^$1[ ]*:" /proc/mdstat | \ |
268 | awk '{ print $4 }') |
269 | devs=$(grep "^$1[ ]*:" /proc/mdstat | \ |
270 | awk '{ print gensub("\\[[0-9]*\\]","","g",gensub("^md.*raid[0-9]*","","1")) }') |
271 | |
272 | for level in ${levels} |
273 | do |
274 | case ${level} in |
275 | linear) |
276 | findmodule linear |
277 | start=1 |
278 | ;; |
279 | multipath) |
280 | findmodule multipath |
281 | start=1 |
282 | ;; |
283 | raid[01456]) |
284 | findmodule ${level} |
285 | start=1 |
286 | ;; |
287 | *) |
288 | error "raid level ${level} (in /proc/mdstat) not recognized" |
289 | ;; |
290 | esac |
291 | done |
292 | findstoragedriver ${devs} |
293 | if [[ ${start} = 1 ]] |
294 | then |
295 | raiddevices="${raiddevices} $1" |
296 | fi |
297 | return ${start} |
298 | } |
299 | |
300 | handlelvordev() |
301 | { |
302 | local vg=$(lvs --noheadings -o vg_name $1 2>/dev/null) |
303 | if [ -n "${vg}" ] |
304 | then |
305 | vg=$(echo ${vg}) # strip whitespace |
306 | case " ${vg_list} " in |
307 | *" ${vg} "*) |
308 | ;; |
309 | *) |
310 | vg_list="${vg_list} ${vg}" |
311 | for device in $(vgdisplay -v ${vg} 2>/dev/null | sed -n 's/PV Name//p') |
312 | do |
313 | findstoragedriver ${device##/dev/} |
314 | done |
315 | ;; |
316 | esac |
317 | else |
318 | findstoragedriver ${1##/dev/} |
319 | fi |
320 | } |
321 | |
322 | # need r00t privs |
323 | [[ $(id -u) != 0 ]] && die "you must be r00t." |
324 | |
325 | while [ $# -gt 0 ]; do |
326 | case $1 in |
327 | --fstab*) |
328 | if echo $1 | grep -q '=' ; then |
329 | fstab=$(echo $1 | sed 's/^--fstab=//') |
330 | else |
331 | fstab=$2 |
332 | shift |
333 | fi |
334 | ;; |
335 | |
336 | --with-usb) withusb=yes ;; |
337 | |
338 | --with*) |
339 | if echo $1 | grep -q '=' ; then |
340 | modname=$(echo $1 | sed 's/^--with=//') |
341 | else |
342 | modname=$2 |
343 | shift |
344 | fi |
345 | basicmodules="${basicmodules} ${modname}" |
346 | ;; |
347 | |
348 | --builtin*) |
349 | if echo $1 | grep -q '=' ; then |
350 | modname=$(echo $1 | sed 's/^--builtin=//') |
351 | else |
352 | modname=$2 |
353 | shift |
354 | fi |
355 | builtins="${builtins} ${modname}" |
356 | ;; |
357 | |
358 | --version) |
359 | echo "mkinitrd: version ${VERSION}" |
360 | exit 0 |
361 | ;; |
362 | |
363 | -v) verbose=-v ;; |
364 | --nocompress) compress="" ;; |
365 | --ifneeded) |
366 | # legacy |
367 | ;; |
368 | -f) force=1 ;; |
369 | |
370 | --preload*) |
371 | if echo $1 | grep -q '=' ; then |
372 | modname=$(echo $1 | sed 's/^--preload=//') |
373 | else |
374 | modname=$2 |
375 | shift |
376 | fi |
377 | PREMODS="${PREMODS} ${modname}" |
378 | ;; |
379 | |
380 | --force-scsi-probe) forcescsi=1 ;; |
381 | |
382 | --omit-scsi-modules) |
383 | PRESCSIMODS="" |
384 | noscsi=1 |
385 | ;; |
386 | --force-raid-probe) forceraid=1 ;; |
387 | --omit-raid-modules) noraid=1 ;; |
388 | --force-lvm-probe) forcelvm=1 ;; |
389 | --omit-lvm-modules) nolvm=1 ;; |
390 | --force-ide-probe) forceide=1 ;; |
391 | --image-version) img_vers=yes ;; |
392 | --allow-missing) allowmissing=yes ;; |
393 | --noresume) noresume=1 ;; |
394 | --help) usage -n ;; |
395 | --initramfs) IMAGE_TYPE=initramfs ;; |
396 | --loopback) IMAGE_TYPE=loopback ;; |
397 | --no-strip) NOSTRIP=true ;; |
398 | *) |
399 | if [ -z "${target}" ] |
400 | then |
401 | target=$1 |
402 | elif [ -z "${kernel}" ] |
403 | then |
404 | kernel=$1 |
405 | else |
406 | usage |
407 | fi |
408 | ;; |
409 | esac |
410 | |
411 | shift |
412 | done |
413 | |
414 | # enforce initramfs method as default |
415 | [[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs |
416 | |
417 | if [ -z "${target}" -o -z "${kernel}" ] |
418 | then |
419 | usage |
420 | fi |
421 | |
422 | if [ -n "${img_vers}" ] |
423 | then |
424 | target="${target}-${kernel}" |
425 | fi |
426 | |
427 | if [ -z "${force}" -a -f ${target} ] |
428 | then |
429 | die "${target} already exists." |
430 | fi |
431 | |
432 | if [ -n "${forcescsi}" -a -n "${noscsi}" ] |
433 | then |
434 | die "Can't both force scsi probe and omit scsi modules" |
435 | fi |
436 | |
437 | if [ -n "${forceraid}" -a -n "${noraid}" ] |
438 | then |
439 | die "Can't both force raid probe and omit raid modules" |
440 | fi |
441 | |
442 | if [ -n "${forcelvm}" -a -n "${nolvm}" ] |
443 | then |
444 | die "Can't both force LVM probe and omit LVM modules" |
445 | fi |
446 | |
447 | if [ ! -d /lib/modules/${kernel} ] |
448 | then |
449 | die "No modules available for kernel '${kernel}'." |
450 | fi |
451 | |
452 | ############################## |
453 | ####### get modules ########## |
454 | |
455 | echo "Creating ${IMAGE_TYPE} initrd image" |
456 | modulefile=/etc/modprobe.conf |
457 | |
458 | for n in ${PREMODS} |
459 | do |
460 | findmodule ${n} |
461 | done |
462 | |
463 | needusb="" |
464 | if [ -n "${withusb}" -a "x${PROBE}" == "xyes" ] |
465 | then |
466 | # If / or /boot is on a USB device include the driver. With root by |
467 | # label we could still get some odd behaviors |
468 | for fs in / /boot |
469 | do |
470 | esc=$(echo ${fs} | sed 's,/,\\/,g') |
471 | dev=$(mount | awk "/ on ${esc} / { print \$1 }" | sed 's/[0-9]*$//' | cut -d/ -f3) |
472 | if [ "$(echo ${dev} | cut -c1-2)" = sd ] |
473 | then |
474 | if [ $(which kudzu 2>/dev/null) ] |
475 | then |
476 | host=$(kudzu --probe -b scsi | |
477 | gawk '/^device: '${dev}'/,/^host:/ { if (/^host/) { print $2; exit; } }') |
478 | if [ -d /proc/scsi/usb-storage-${host} -o -f /proc/scsi/usb-storage/${host} ] |
479 | then |
480 | needusb=1 |
481 | fi |
482 | fi |
483 | fi |
484 | done |
485 | fi |
486 | |
487 | if [ -n "${needusb}" -a "x${PROBE}" == "xyes" ] |
488 | then |
489 | drivers=$(awk '/^alias[[:space:]]+usb-controller[0-9]* / { print $3}' < ${modulefile}) |
490 | if [ -n "${drivers}" ] |
491 | then |
492 | for driver in ${drivers} |
493 | do |
494 | findmodule ${driver} |
495 | done |
496 | findmodule scsi_mod |
497 | findmodule sd_mod |
498 | findmodule usb-storage |
499 | fi |
500 | fi |
501 | |
502 | if [ -n "${forcescsi}" -o -z "${noscsi}" -a "x${PROBE}" == "xyes" ] |
503 | then |
504 | if [ ! -f ${modulefile} ] |
505 | then |
506 | modulefile=/etc/conf.modules |
507 | fi |
508 | |
509 | if [ -f ${modulefile} ] |
510 | then |
511 | scsimodules=$(grep "alias[[:space:]]\+scsi_hostadapter" ${modulefile} | grep -v '^[ ]*#' | LC_ALL=C sort -u | awk '{ print $3 }') |
512 | |
513 | if [ -n "${scsimodules}" ] |
514 | then |
515 | for n in ${PRESCSIMODS} |
516 | do |
517 | findmodule ${n} |
518 | done |
519 | |
520 | for n in ${scsimodules} |
521 | do |
522 | # for now allow scsi modules to come from anywhere. There are some |
523 | # RAID controllers with drivers in block/ |
524 | findmodule ${n} |
525 | done |
526 | fi |
527 | fi |
528 | fi |
529 | |
530 | # If we have ide devices and module ide, do the right thing |
531 | ide=/proc/ide/ide* |
532 | if [ -n "${forceide}" -o -n "${ide}" -a "x${PROBE}" == "xyes" ] |
533 | then |
534 | findmodule -ide-disk |
535 | fi |
536 | |
537 | # If we have dasd devices, include the necessary modules (S/390) |
538 | if [ "x${PROBE}" == "xyes" -a -d /proc/dasd ] |
539 | then |
540 | findmodule -dasd_mod |
541 | findmodule -dasd_eckd_mod |
542 | findmodule -dasd_fba_mod |
543 | fi |
544 | |
545 | if [ "x${PROBE}" == "xyes" ] |
546 | then |
547 | # check to see if we need to set up a loopback filesystem |
548 | rootdev=$(awk '/^[ \t]*[^#]/ { if ($2 == "/") { print $1; }}' ${fstab}) |
549 | # check if it's root by label |
550 | if echo ${rootdev} | cut -c1-6 | grep -q "LABEL=" |
551 | then |
552 | majmin=$(stat -c "%t:%T" /dev/root) |
553 | if [ -n "${majmin}" ] |
554 | then |
555 | dev=$(findall /sys/block -name dev | while read device ; do \ |
556 | echo "${majmin}" | cmp -s ${device} && echo ${device} ; done \ |
557 | | sed -e 's,.*/\([^/]\+\)/dev,\1,' ) |
558 | if [ -n "${dev}" ]; then |
559 | echo "Found root device ${dev} for ${rootdev}" |
560 | rootdev=${dev} |
561 | fi |
562 | fi |
563 | fi |
564 | if echo ${rootdev} | cut -d/ -f3 | grep -q loop |
565 | then |
566 | key="^# $(echo ${rootdev} | cut -d/ -f3 | tr '[a-z]' '[A-Z]'):" |
567 | if ! grep "${key}" ${fstab} >> /dev/null |
568 | then |
569 | echo "The root filesystem is on a ${rootdev}, but there is no magic entry in ${fstab}" |
570 | echo "for this device. Consult the mkinitrd man page for more information" |
571 | echo "loopback root." |
572 | exit 1 |
573 | fi |
574 | |
575 | line=$(grep "${key}" ${fstab}) |
576 | loopDev=$(echo ${line} | awk '{print $3}') |
577 | loopFs=$(echo ${line} | awk '{print $4}') |
578 | loopFile=$(echo ${line} | awk '{print $5}') |
579 | |
580 | basicmodules="${basicmodules} -loop" |
581 | if [ "${loopFs}" = "vfat" -o "${loopFs}" = "msdos" ] |
582 | then |
583 | basicmodules="${basicmodules} -fat" |
584 | fi |
585 | basicmodules="${basicmodules} -${loopFs}" |
586 | # check if the root fs is on a logical volume |
587 | # this check must be last |
588 | else |
589 | handlelvordev ${rootdev} |
590 | fi |
591 | |
592 | rootfs=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $3; }}' ${fstab}) |
593 | rootopts=$(awk '{ if ($1 !~ /^[ \t]*#/ && $2 == "/") { print $4; }}' ${fstab}\ |
594 | | sed -e 's/^r[ow],//' -e 's/,r[ow],$//' -e 's/,r[ow],/,/' \ |
595 | -e 's/^r[ow]$/defaults/' -e 's/$/,ro/') |
596 | |
597 | # in case the root filesystem is modular |
598 | findmodule -${rootfs} |
599 | |
600 | # find the first swap dev which would get used for swsusp |
601 | swsuspdev=$(awk '/^[ \t]*[^#]/ { if ($3 == "swap") { print $1; }}' ${fstab} \ |
602 | | head -n 1) |
603 | if ! echo ${swsuspdev} | cut -c1-6 | grep -q "LABEL=" |
604 | then |
605 | handlelvordev ${swsupdev} |
606 | fi |
607 | fi |
608 | |
609 | # If we use LVM or dm-based raid, include dm-mod |
610 | # XXX: dm not really supported yet. |
611 | testdm="" |
612 | [ -n "${vg_list}" ] && testdm="yes" |
613 | [ -n "${forceraid}" -o -n "${forcelvm}" ] && testdm="yes" |
614 | [ "x${PROBE}" == "xyes" -a \ |
615 | -n "$(test -z \"${nolvm}\" -o -z \"${noraid}\")" ] && testdm="yes" |
616 | |
617 | if [ -n "${testdm}" ] |
618 | then |
619 | if [ -x /sbin/dmsetup -a -e /dev/mapper/control ] |
620 | then |
621 | dmout=$(/sbin/dmsetup ls 2>/dev/null) |
622 | if [ "${dmout}" != "No devices found" -a "${dmout}" != "" ] |
623 | then |
624 | findmodule -dm-mod |
625 | |
626 | # DM requires all of these to be there in case someone used the |
627 | # feature. broken. (#132001) |
628 | findmodule -dm-mirror |
629 | findmodule -dm-zero |
630 | findmodule -dm-snapshot |
631 | fi |
632 | fi |
633 | fi |
634 | |
635 | for n in ${basicmodules} |
636 | do |
637 | findmodule ${n} |
638 | done |
639 | |
640 | for n in ${CONFMODS} |
641 | do |
642 | findmodule ${n} |
643 | done |
644 | |
645 | echo "Using modules:${MODULES}" |
646 | |
647 | ####### eof modules ########## |
648 | ############################## |
649 | |
650 | |
651 | # create basic filesystem layout |
652 | install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot} || die |
653 | |
654 | # install busybox |
655 | echo "$(which busybox.mkinitrd)" |
656 | install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die |
657 | for i in '[' ash basename cat cut clear cp dirname echo env false find \ |
658 | grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \ |
659 | ps pwd rm rmdir sh sleep test touch true umount uname \ |
660 | xargs yes chmod chown |
661 | do |
662 | # use soft links from now on; |
663 | # hardlinks in initramfs apears to be broken on newer kernels |
664 | # -> "request module: runaway loop modprobe binfmt-0000" |
665 | # see: http://www.gossamer-threads.com/lists/linux/kernel/728042 |
666 | ln -s /bin/busybox ${DEST}/bin/${i} || die "${i}" |
667 | done |
668 | |
669 | # sbin related |
670 | for i in chroot init losetup modprobe pivot_root |
671 | do |
672 | # static links |
673 | ln ${DEST}/bin/busybox ${DEST}/sbin/${i} || die "${i}" |
674 | done |
675 | |
676 | # install run-init |
677 | echo "$(which run-init.mkinitrd)" |
678 | install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init || die |
679 | |
680 | # install insmod.static |
681 | echo "$(which insmod.static)" |
682 | install -m0755 $(which insmod.static) ${DEST}/sbin/insmod || die |
683 | |
684 | # install v86d for uvesafb support if installed |
685 | if which v86d &> /dev/null |
686 | then |
687 | echo "$(which insmod.static)" |
688 | install -m0755 $(which v86d) ${DEST}/sbin/v86d || die |
689 | fi |
690 | |
691 | # install lvm |
692 | if [ -n "${vg_list}" ] |
693 | then |
694 | inst /sbin/lvm.static "${DEST}/sbin/lvm" |
695 | if [ -f /etc/lvm/lvm.conf ] |
696 | then |
697 | cp ${verbose} --parents /etc/lvm/lvm.conf ${DEST}/ |
698 | fi |
699 | fi |
700 | |
701 | # create some needed device nodes |
702 | mkdir ${DEST}/dev/pts || die |
703 | mkdir ${DEST}/dev/shm || die |
704 | mkdir ${DEST}/dev/mapper || die |
705 | mkdir ${DEST}/dev/misc || die |
706 | mkdir ${DEST}/dev/fb || die |
707 | mkdir ${DEST}/dev/vc || die |
708 | mknod ${DEST}/dev/console c 5 1 || die |
709 | mknod ${DEST}/dev/null c 1 3 || die |
710 | mknod ${DEST}/dev/ram b 1 1 || die |
711 | mknod ${DEST}/dev/rtc c 10 135 || die |
712 | mknod ${DEST}/dev/systty c 4 0 || die |
713 | mknod ${DEST}/dev/tty c 5 0 || die |
714 | mknod ${DEST}/dev/zero c 1 5 || die |
715 | for ((i=0; i < 13; i++)) |
716 | do |
717 | mknod ${DEST}/dev/tty${i} c 4 ${i} || die "tty${i}" |
718 | done |
719 | for ((i=64; i < 68; i++)) |
720 | do |
721 | mknod ${DEST}/dev/ttyS$((${i} - 64)) c 4 ${i} || die "ttyS$((${i} - 64))" |
722 | done |
723 | |
724 | # create init script |
725 | :> ${DEST}/init || die |
726 | add_initrd '#!/bin/sh' |
727 | |
728 | add_initrd 'mount -t proc proc /proc' |
729 | add_initrd 'mount -t sysfs sysfs /sys' |
730 | |
731 | [[ ${IMAGE_TYPE} = loopback ]] && add_initrd 'mount -t ramfs -o remount,rw /dev/ram /' |
732 | |
733 | # silencio |
734 | add_initrd 'echo 0 > /proc/sys/kernel/printk' |
735 | |
736 | add_initrd 'echo "-- Creating initial device nodes ..."' |
737 | add_initrd 'mount -o exec,nosuid,mode=0755,size=10M -t tmpfs udev /dev' |
738 | add_initrd 'mkdir /dev/pts' |
739 | add_initrd 'mkdir /dev/shm' |
740 | add_initrd 'mkdir /dev/mapper' |
741 | add_initrd 'mkdir /dev/misc' |
742 | add_initrd 'mkdir /dev/fb' |
743 | add_initrd 'mkdir /dev/vc' |
744 | add_initrd 'mknod /dev/console c 5 1' |
745 | add_initrd 'mknod /dev/null c 1 3' |
746 | add_initrd 'mknod /dev/ram b 1 1' |
747 | add_initrd 'mknod /dev/rtc c 10 135' |
748 | add_initrd 'mknod /dev/systty c 4 0' |
749 | add_initrd 'mknod /dev/tty c 5 0' |
750 | add_initrd 'mknod /dev/zero c 1 5' |
751 | for (( i=0; i < 13; i++ )); do |
752 | add_initrd "mknod /dev/tty${i} c 4 ${i}" |
753 | done |
754 | for (( i=64; i < 68; i++)); do |
755 | add_initrd "mknod /dev/ttyS$((${i} - 64)) c 4 ${i}" |
756 | done |
757 | |
758 | # some needed symlinks |
759 | add_initrd 'ln -snf /proc/self/fd /dev/fd' |
760 | add_initrd 'ln -snf fd/0 /dev/stdin' |
761 | add_initrd 'ln -snf fd/1 /dev/stdout' |
762 | add_initrd 'ln -snf fd/2 /dev/stderr' |
763 | add_initrd 'ln -snf /proc/kcore /dev/core' |
764 | |
765 | # loading detected modules with options |
766 | for MODULE in ${MODULES} |
767 | do |
768 | text="" |
769 | module=$(echo ${MODULE} | sed "s|.*/||" | sed "s/.k\?o$//") |
770 | fullmodule=$(echo ${MODULE} | sed "s|.*/||") |
771 | |
772 | options=$(sed -n -e "s/^options[ ][ ]*${module}[ ][ ]*//p" ${modulefile} 2>/dev/null) |
773 | |
774 | if [ -n "${options}" ] |
775 | then |
776 | echo "Adding module ${module}${text} with options ${options} ..." |
777 | else |
778 | echo "Adding module ${module}${text} ..." |
779 | fi |
780 | |
781 | add_initrd "echo \"-- Loading ${fullmodule} module\"" |
782 | add_initrd "insmod /lib/${fullmodule} ${options}" |
783 | |
784 | # Hack - we need a delay after loading usb-storage to give things |
785 | # time to settle down before we start looking a block devices |
786 | if [ "${module}" = "usb-storage" ] |
787 | then |
788 | add_initrd 'echo Waiting 8 seconds for driver initialization.' |
789 | add_initrd 'sleep 8' |
790 | fi |
791 | if [ "${module}" = "zfcp" -a -f /etc/zfcp.conf ] |
792 | then |
793 | add_initrd 'echo Waiting 2 seconds for driver initialization.' |
794 | add_initrd 'sleep 2' |
795 | cat /etc/zfcp.conf | grep -v "^#" | tr "A-Z" "a-z" | while read DEVICE SCSIID WWPN SCSILUN FCPLUN |
796 | do |
797 | add_initrd "echo -n ${WWPN} > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/port_add" |
798 | add_initrd "echo -n ${FCPLUN} > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/${WWPN}/unit_add" |
799 | add_initrd "echo -n 1 > /sys/bus/ccw/drivers/zfcp/${DEVICE/0x/}/online" |
800 | done |
801 | fi |
802 | done |
803 | |
804 | # lvm support |
805 | if [ -n "${vg_list}" ] |
806 | then |
807 | add_initrd 'echo Scanning logical volumes' |
808 | add_initrd 'lvm vgscan --ignorelockingfailure' |
809 | add_initrd 'echo Activating logical volumes' |
810 | add_initrd "lvm vgchange -ay --ignorelockingfailure ${vg_list}" |
811 | fi |
812 | |
813 | # loopback support |
814 | if [ -n "${loopDev}" ] |
815 | then |
816 | # needed on the host system |
817 | install -d /initrd |
818 | cp -a ${loopDev} ${DEST}/dev || die |
819 | cp -a ${rootdev} ${DEST}/dev || die |
820 | add_initrd 'echo "Mounting device containing loopback root filesystem ..."' |
821 | add_initrd "mount -t ${loopFs} ${loopDev} /loopfs" |
822 | add_initrd "echo Setting up loopback device ${rootdev}" |
823 | add_initrd "losetup ${rootdev} /loopfs${loopFile}" |
824 | fi |
825 | |
826 | # software suspend |
827 | if [ -z "${noresume}" ] |
828 | then |
829 | add_initrd "[ -x /bin/resume ] && resume ${swsuspdev}" |
830 | fi |
831 | |
832 | # raid |
833 | if [ -n "${raiddevices}" ] |
834 | then |
835 | for dev in ${raiddevices} |
836 | do |
837 | cp -a /dev/${dev} ${DEST}/dev || die |
838 | add_initrd "raidautorun /dev/${dev}" |
839 | done |
840 | fi |
841 | |
842 | add_initrd 'echo "-- Mounting sysroot ..."' |
843 | add_initrd '. /etc/rootdev' |
844 | add_initrd '[ ! -e ${device} ] && mknod ${device} b ${major} ${minor}' |
845 | add_initrd 'echo "${device} /sysroot ${rootfs} defaults,ro 0 0" > /etc/fstab' |
846 | add_initrd 'mount /sysroot' |
847 | |
848 | # de-silencio |
849 | add_initrd 'echo 3 > /proc/sys/kernel/printk' |
850 | |
851 | add_initrd 'echo "-- Switching to real sysroot ..."' |
852 | add_initrd 'umount /sys' |
853 | add_initrd 'umount /proc' |
854 | add_initrd 'umount /dev' |
855 | |
856 | [[ ${IMAGE_TYPE} = initramfs ]] && add_initrd 'exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console' |
857 | if [[ ${IMAGE_TYPE} = loopback ]] |
858 | then |
859 | add_initrd 'cd /sysroot' |
860 | add_initrd 'pivot_root . initrd' |
861 | 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" |
862 | fi |
863 | |
864 | chmod +x ${DEST}/init || die |
865 | |
866 | # setup root block device |
867 | [[ -z ${rootdev} ]] && die "no known rootdev found." |
868 | echo "device=${rootdev}" > ${DEST}/etc/rootdev || die |
869 | echo "major=$(stat -c %t ${rootdev})" >> ${DEST}/etc/rootdev || die |
870 | echo "minor=$(stat -c %T ${rootdev})" >> ${DEST}/etc/rootdev || die |
871 | echo "rootfs=${rootfs}" >> ${DEST}/etc/rootdev || die |
872 | |
873 | # install detected modules |
874 | echo "Coping your modules to '${DEST}/lib' ..." |
875 | for MODULE in ${MODULES} |
876 | do |
877 | if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]] |
878 | then |
879 | /usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die |
880 | else |
881 | cp ${verbose} -a ${MODULE} ${DEST}/lib || die |
882 | fi |
883 | done |
884 | |
885 | # create the image |
886 | echo "Creating initrd image '${target}' ..." |
887 | if [[ ${IMAGE_TYPE} = initramfs ]] |
888 | then |
889 | (cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE}) |
890 | cat ${IMAGE} > ${target} || die |
891 | fi |
892 | |
893 | if [[ ${IMAGE_TYPE} = loopback ]] |
894 | then |
895 | MOUNTTMP="$(mktemp -d)" |
896 | |
897 | # create ext2 img |
898 | dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die |
899 | mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die |
900 | mount -o loop ${IMAGE} ${MOUNTTMP} || die |
901 | mv ${DEST}/* ${MOUNTTMP} || die |
902 | umount ${MOUNTTMP} || die |
903 | gzip -9 ${IMAGE} || die |
904 | cat ${IMAGE}.gz > ${target} || die |
905 | [ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP} |
906 | |
907 | # create inird dir for pivot_root |
908 | [ ! -d /initrd ] && { install -d /initrd || die; } |
909 | fi |
910 | |
911 | # clean up |
912 | [ -d ${DEST} ] && rm -rf ${DEST} |
913 | [ -f ${IMAGE} ] && rm -f ${IMAGE} |
914 | |
915 | # all went ok at this point |
916 | exit 0 |