Annotation of /trunk/mkinitrd-magellan/livecd/mkinitrd-livecd.in
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Revision 1220 -
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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 | niro | 562 | #!/bin/bash |
2 | niro | 810 | # $Id$ |
3 | niro | 562 | |
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="${LIBDIR}/mkinitrd/modules.pata" | ||
50 | niro | 664 | MODULES_FRAMEBUFFER="${LIBDIR}/mkinitrd/modules.framebuffer" |
51 | niro | 562 | |
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 | niro | 664 | echo " [--linuxrc /path/to/custom/linuxrc ]" |
80 | niro | 562 | 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 | niro | 1220 | function modname(filename) { match(filename, /\/([^\/]+)\.k?o.?g?z?:?$/, ret); return ret[1] } \ |
97 | niro | 562 | function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ |
98 | niro | 845 | /^.*kernel/ { show(); \ |
99 | niro | 562 | 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 | *"/${modName}.ko "*) return ;; | ||
134 | niro | 1220 | *"/${modName}.ko.gz "*) return ;; |
135 | niro | 562 | 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 ${i} | ||
164 | done | ||
165 | fi | ||
166 | |||
167 | niro | 1220 | for modExt in o.gz o ko ko.gz |
168 | niro | 562 | do |
169 | for modDir in /lib/modules/${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 | niro | 664 | # no list found; return |
217 | [[ -z ${list} ]] && return | ||
218 | |||
219 | niro | 562 | while read module args |
220 | do | ||
221 | case "${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 | niro | 1220 | # 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 | niro | 562 | else |
246 | cp ${verbose} -a ${MODULE} ${DEST}/lib || die | ||
247 | fi | ||
248 | |||
249 | # generate modules load file | ||
250 | niro | 1220 | local modname i |
251 | modname="${MODULE##*/}" | ||
252 | for i in .o .ko .gz | ||
253 | do | ||
254 | modname="${modname/${i}/}" | ||
255 | done | ||
256 | echo "${modname}" >> ${DEST}/etc/$(basename ${list}) || die | ||
257 | niro | 562 | done |
258 | |||
259 | export ALL_MODULES="${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 | niro | 664 | --linuxrc) shift; LINUXRC="$1" ;; |
287 | niro | 562 | *) |
288 | if [ -z "${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 | niro | 664 | # no kernel or target given |
304 | if [[ -z ${target} ]] || [[ -z ${kernel} ]] | ||
305 | then | ||
306 | usage | ||
307 | fi | ||
308 | niro | 562 | |
309 | niro | 664 | # die if linuxrc does not exist |
310 | [[ ! -e ${LINUXRC} ]] && die "linuxrc '${LINUXRC}' not found." | ||
311 | |||
312 | niro | 562 | # create basic filesystem layout |
313 | niro | 894 | install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot,usr/bin,usr/sbin} || die |
314 | niro | 562 | |
315 | # install busybox | ||
316 | echo "$(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 | niro | 894 | ln -s ${DEST}/bin/busybox ${DEST}/sbin/${i} || die "${i}" |
334 | niro | 562 | done |
335 | |||
336 | # install run-init | ||
337 | echo "$(which run-init.mkinitrd)" | ||
338 | install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init || die | ||
339 | |||
340 | # install insmod.static | ||
341 | niro | 894 | #echo "$(which insmod.static)" |
342 | #install -m0755 $(which insmod.static) ${DEST}/sbin/insmod || die | ||
343 | niro | 562 | |
344 | niro | 703 | # install v86d for uvesafb support if installed |
345 | if which v86d &> /dev/null | ||
346 | then | ||
347 | niro | 894 | echo "$(which v86d)" |
348 | niro | 703 | install -m0755 $(which v86d) ${DEST}/sbin/v86d || die |
349 | fi | ||
350 | |||
351 | niro | 562 | ## install kernel modules ## |
352 | # generic needed | ||
353 | install_kernel_modules "${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 | niro | 664 | # framebuffer |
368 | install_kernel_modules "${MODULES_FRAMEBUFFER}" | ||
369 | |||
370 | niro | 562 | # 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 |