Contents of /trunk/mkinitrd-magellan/livecd/mkinitrd-livecd.in
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Sat Jan 29 14:04:05 2011 UTC (13 years, 8 months ago) by niro
File size: 9255 byte(s)
Sat Jan 29 14:04:05 2011 UTC (13 years, 8 months ago) by niro
File size: 9255 byte(s)
-support for gzip compressed kernel-modules
1 | #!/bin/bash |
2 | # $Id$ |
3 | |
4 | # mkinitrd-livecd |
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:$PATH |
34 | export PATH |
35 | |
36 | VERSION=%VERSIONTAG% |
37 | |
38 | MODULES="" |
39 | NOSTRIP=false |
40 | |
41 | [ -e /etc/conf.d/mkinitrd-livecd ] && . /etc/conf.d/mkinitrd-livecd |
42 | |
43 | LIBDIR="%LIBDIR%" |
44 | LINUXRC="${LIBDIR}/mkinitrd/linuxrc.sh" |
45 | MODULES_GENERIC="${LIBDIR}/mkinitrd/modules.generic" |
46 | MODULES_USB="${LIBDIR}/mkinitrd/modules.usb" |
47 | MODULES_SCSI="${LIBDIR}/mkinitrd/modules.scsi" |
48 | MODULES_SATA="${LIBDIR}/mkinitrd/modules.sata" |
49 | MODULES_PATA="${LIBDIR}/mkinitrd/modules.pata" |
50 | MODULES_FRAMEBUFFER="${LIBDIR}/mkinitrd/modules.framebuffer" |
51 | |
52 | compress=1 |
53 | allowmissing="" |
54 | target="" |
55 | kernel="" |
56 | force="" |
57 | verbose="" |
58 | img_vers="" |
59 | builtins="" |
60 | modulefile=/etc/modules.conf |
61 | rc=0 |
62 | |
63 | IMAGESIZE=4000 |
64 | PRESCSIMODS="sd_mod" |
65 | fstab="/etc/fstab" |
66 | |
67 | vg_list="" |
68 | |
69 | die() { echo "Error: $@"; exit 1; } |
70 | add_initrd() { echo "$@" >> ${DEST}/init || die; } |
71 | |
72 | DEST="$(mktemp -d)" |
73 | IMAGE="$(mktemp)" |
74 | |
75 | usage() |
76 | { |
77 | echo "usage: $(basename $0) [--version] [--help] [-v] [-f]" |
78 | echo " [--image-version] [--no-strip] [--nocompress]" |
79 | echo " [--linuxrc /path/to/custom/linuxrc ]" |
80 | echo " <initrd-image> <kernel-version>" |
81 | echo |
82 | echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)" |
83 | |
84 | exit 0 |
85 | } |
86 | |
87 | moduledep() |
88 | { |
89 | if [ ! -f "/lib/modules/${kernel}/modules.dep" ] |
90 | then |
91 | die "No dep file found for kernel ${kernel}" |
92 | fi |
93 | |
94 | echo "Looking for deps of module $1" |
95 | deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \ |
96 | function modname(filename) { match(filename, /\/([^\/]+)\.k?o.?g?z?:?$/, ret); return ret[1] } \ |
97 | function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ |
98 | /^.*kernel/ { show(); \ |
99 | orig=modname($1); dep=""; \ |
100 | if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \ |
101 | /^ / { dep=sprintf("%s %s", dep, modname($1)); } \ |
102 | END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1) |
103 | [ -n "${deps}" ] && echo ":${deps}" || echo |
104 | } |
105 | |
106 | findone() { /usr/bin/find "$@" | /bin/awk '{ print $1; exit; }'; } |
107 | findall() { /usr/bin/find "$@"; } |
108 | |
109 | findmodule() |
110 | { |
111 | skiperrors="" |
112 | |
113 | if [[ $1 = --skiperrors ]] |
114 | then |
115 | skiperrors=--skiperrors |
116 | shift |
117 | fi |
118 | |
119 | local modName=$1 |
120 | |
121 | if [ "${modName}" = "off" -o "${modName}" = "null" ] |
122 | then |
123 | return |
124 | fi |
125 | |
126 | if [ $(echo ${modName} | cut -b1) = "-" ] |
127 | then |
128 | skiperrors=--skiperrors |
129 | modName=$(echo ${modName} | cut -b2-) |
130 | fi |
131 | |
132 | case "${MODULES} " in |
133 | *"/${modName}.ko "*) return ;; |
134 | *"/${modName}.ko.gz "*) return ;; |
135 | esac |
136 | |
137 | if echo ${builtins} | egrep -q '(^| )'${modName}'( |$)' |
138 | then |
139 | echo "module ${modName} assumed to be built in" |
140 | return |
141 | fi |
142 | |
143 | # special cases |
144 | if [[ ${modName} = i2o_block ]] |
145 | then |
146 | findmodule i2o_core |
147 | findmodule -i2o_pci |
148 | modName="i2o_block" |
149 | elif [[ ${modName} = ppa ]] |
150 | then |
151 | findmodule parport |
152 | findmodule parport_pc |
153 | modName="ppa" |
154 | elif [[ ${modName} = sbp2 ]] |
155 | then |
156 | findmodule ieee1394 |
157 | findmodule ohci1394 |
158 | modName="sbp2" |
159 | else |
160 | moduledep ${modName} |
161 | for i in ${deps} |
162 | do |
163 | findmodule ${i} |
164 | done |
165 | fi |
166 | |
167 | for modExt in o.gz o ko ko.gz |
168 | do |
169 | for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel} |
170 | do |
171 | if [ -d ${modDir} ] |
172 | then |
173 | fmPath=$(findone ${modDir} -name ${modName}.${modExt}) |
174 | if [ -f "${fmPath}" ] |
175 | then |
176 | break 2 |
177 | fi |
178 | fi |
179 | done |
180 | done |
181 | |
182 | if [ ! -f ${fmPath} ] |
183 | then |
184 | if [ -n "${skiperrors}" ] |
185 | then |
186 | return |
187 | fi |
188 | |
189 | # ignore the absence of the scsi modules |
190 | for n in ${PRESCSIMODS} |
191 | do |
192 | if [[ ${n} = ${modName} ]] |
193 | then |
194 | return |
195 | fi |
196 | done |
197 | |
198 | if [ -n "${allowmissing}" ] |
199 | then |
200 | echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway" |
201 | return |
202 | fi |
203 | |
204 | die "No module ${modName} found for kernel ${kernel}, aborting." |
205 | fi |
206 | |
207 | # only need to add each module once |
208 | MODULES="${MODULES} ${fmPath}" |
209 | } |
210 | |
211 | install_kernel_modules() |
212 | { |
213 | local list="$1" |
214 | local module |
215 | |
216 | # no list found; return |
217 | [[ -z ${list} ]] && return |
218 | |
219 | while read module args |
220 | do |
221 | case "${module}" in |
222 | \#*|"") continue ;; |
223 | esac |
224 | |
225 | findmodule ${module} |
226 | done << EOF |
227 | $(cat ${list}; echo) |
228 | EOF |
229 | |
230 | # create empty modules.lala file |
231 | :> ${DEST}/etc/$(basename ${list}) |
232 | |
233 | # install detected modules |
234 | echo "Coping your modules to '${DEST}/lib' ..." |
235 | for MODULE in ${MODULES} |
236 | do |
237 | if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]] |
238 | then |
239 | /usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die |
240 | # handle gzip compressed modules right |
241 | elif [[ ${MODULE##*.} = gz ]] |
242 | then |
243 | zcat ${verbose} ${MODULE} > ${DEST}/lib/$(basename ${MODULE} .gz) || die |
244 | MODULE="${MODULE/.gz/}" |
245 | else |
246 | cp ${verbose} -a ${MODULE} ${DEST}/lib || die |
247 | fi |
248 | |
249 | # generate modules load file |
250 | local modname i |
251 | modname="${MODULE##*/}" |
252 | for i in .o .ko .gz |
253 | do |
254 | modname="${modname/${i}/}" |
255 | done |
256 | echo "${modname}" >> ${DEST}/etc/$(basename ${list}) || die |
257 | done |
258 | |
259 | export ALL_MODULES="${ALL_MODULES} ${MODULES}" |
260 | unset MODULES |
261 | } |
262 | |
263 | # need r00t privs |
264 | [[ $(id -u) != 0 ]] && die "you must be r00t." |
265 | |
266 | # enforce initramfs method as default |
267 | [[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs |
268 | |
269 | while [ $# -gt 0 ]; do |
270 | case $1 in |
271 | --version) |
272 | echo "mkinitrd: version ${VERSION}" |
273 | exit 0 |
274 | ;; |
275 | |
276 | -v) verbose=-v ;; |
277 | -f) force=1 ;; |
278 | --nocompress) compress="" ;; |
279 | --image-version) img_vers=yes ;; |
280 | --allow-missing) allowmissing=yes ;; |
281 | --noresume) noresume=1 ;; |
282 | --help) usage -n ;; |
283 | --initramfs) IMAGE_TYPE=initramfs ;; |
284 | --loopback) IMAGE_TYPE=loopback ;; |
285 | --no-strip) NOSTRIP=true ;; |
286 | --linuxrc) shift; LINUXRC="$1" ;; |
287 | *) |
288 | if [ -z "${target}" ] |
289 | then |
290 | target=$1 |
291 | elif [ -z "${kernel}" ] |
292 | then |
293 | kernel=$1 |
294 | else |
295 | usage |
296 | fi |
297 | ;; |
298 | esac |
299 | |
300 | shift |
301 | done |
302 | |
303 | # no kernel or target given |
304 | if [[ -z ${target} ]] || [[ -z ${kernel} ]] |
305 | then |
306 | usage |
307 | fi |
308 | |
309 | # die if linuxrc does not exist |
310 | [[ ! -e ${LINUXRC} ]] && die "linuxrc '${LINUXRC}' not found." |
311 | |
312 | # create basic filesystem layout |
313 | install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot,usr/bin,usr/sbin} || die |
314 | |
315 | # install busybox |
316 | echo "$(which busybox.mkinitrd)" |
317 | install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die |
318 | for i in '[' ash basename cat cut clear cp dirname echo env false find \ |
319 | grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \ |
320 | ps pwd rm rmdir sh sleep test touch true umount uname \ |
321 | xargs yes chmod chown |
322 | do |
323 | # use soft links from now on; |
324 | # hardlinks in initramfs apears to be broken on newer kernels |
325 | # -> "request module: runaway loop modprobe binfmt-0000" |
326 | # see: http://www.gossamer-threads.com/lists/linux/kernel/728042 |
327 | ln -s /bin/busybox ${DEST}/bin/${i} || die "${i}" |
328 | done |
329 | |
330 | # sbin related |
331 | for i in chroot init losetup modprobe pivot_root |
332 | do |
333 | ln -s ${DEST}/bin/busybox ${DEST}/sbin/${i} || die "${i}" |
334 | done |
335 | |
336 | # install run-init |
337 | echo "$(which run-init.mkinitrd)" |
338 | install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init || die |
339 | |
340 | # install insmod.static |
341 | #echo "$(which insmod.static)" |
342 | #install -m0755 $(which insmod.static) ${DEST}/sbin/insmod || die |
343 | |
344 | # install v86d for uvesafb support if installed |
345 | if which v86d &> /dev/null |
346 | then |
347 | echo "$(which v86d)" |
348 | install -m0755 $(which v86d) ${DEST}/sbin/v86d || die |
349 | fi |
350 | |
351 | ## install kernel modules ## |
352 | # generic needed |
353 | install_kernel_modules "${MODULES_GENERIC}" |
354 | |
355 | # usb |
356 | install_kernel_modules "${MODULES_USB}" |
357 | |
358 | # scsi |
359 | install_kernel_modules "${MODULES_SCSI}" |
360 | |
361 | # sata |
362 | install_kernel_modules "${MODULES_SATA}" |
363 | |
364 | # pata |
365 | install_kernel_modules "${MODULES_PATA}" |
366 | |
367 | # framebuffer |
368 | install_kernel_modules "${MODULES_FRAMEBUFFER}" |
369 | |
370 | # show all modules |
371 | for i in ${ALL_MODULES} |
372 | do |
373 | echo ${i} |
374 | done |
375 | |
376 | # install linuxrc |
377 | install -m0755 ${LINUXRC} ${DEST}/init || die |
378 | |
379 | # create the image |
380 | echo "Creating initrd image '${target}' ..." |
381 | if [[ ${IMAGE_TYPE} = initramfs ]] |
382 | then |
383 | (cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE}) |
384 | cat ${IMAGE} > ${target} || die |
385 | fi |
386 | |
387 | if [[ ${IMAGE_TYPE} = loopback ]] |
388 | then |
389 | MOUNTTMP="$(mktemp -d)" |
390 | |
391 | # create ext2 img |
392 | dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die |
393 | mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die |
394 | mount -o loop ${IMAGE} ${MOUNTTMP} || die |
395 | mv ${DEST}/* ${MOUNTTMP} || die |
396 | umount ${MOUNTTMP} || die |
397 | gzip -9 ${IMAGE} || die |
398 | cat ${IMAGE}.gz > ${target} || die |
399 | [ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP} |
400 | |
401 | # create inird dir for pivot_root |
402 | [ ! -d /initrd ] && { install -d /initrd || die; } |
403 | fi |
404 | |
405 | # clean up |
406 | [ -d ${DEST} ] && rm -rf ${DEST} |
407 | [ -f ${IMAGE} ] && rm -f ${IMAGE} |
408 | |
409 | # all went ok at this point |
410 | exit 0 |