Contents of /tags/mkinitrd-6_5_0/livecd/mkinitrd-livecd.in
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Mon Jan 14 19:35:02 2008 UTC (16 years, 8 months ago) by niro
Original Path: trunk/mkinitrd-magellan/livecd/mkinitrd-livecd.in
File size: 9073 byte(s)
Mon Jan 14 19:35:02 2008 UTC (16 years, 8 months ago) by niro
Original Path: trunk/mkinitrd-magellan/livecd/mkinitrd-livecd.in
File size: 9073 byte(s)
-added support for frambuffer modules -added support for a custom linuxrc -display usage if no target or kernel are given -ignore non existens modules.lists in install_kernel_modules()
1 | #!/bin/bash |
2 | # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd-magellan/livecd/mkinitrd-livecd.in,v 1.2 2008-01-14 19:35:02 niro Exp $ |
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 | MAKEDEV="${LIBDIR}/mkinitrd/MAKEDEV.sh" |
52 | |
53 | compress=1 |
54 | allowmissing="" |
55 | target="" |
56 | kernel="" |
57 | force="" |
58 | verbose="" |
59 | img_vers="" |
60 | builtins="" |
61 | modulefile=/etc/modules.conf |
62 | rc=0 |
63 | |
64 | IMAGESIZE=4000 |
65 | PRESCSIMODS="sd_mod" |
66 | fstab="/etc/fstab" |
67 | |
68 | vg_list="" |
69 | |
70 | die() { echo "Error: $@"; exit 1; } |
71 | add_initrd() { echo "$@" >> ${DEST}/init || die; } |
72 | |
73 | DEST="$(mktemp -d)" |
74 | IMAGE="$(mktemp)" |
75 | |
76 | usage() |
77 | { |
78 | echo "usage: $(basename $0) [--version] [--help] [-v] [-f]" |
79 | echo " [--image-version] [--no-strip] [--nocompress]" |
80 | echo " [--linuxrc /path/to/custom/linuxrc ]" |
81 | echo " <initrd-image> <kernel-version>" |
82 | echo |
83 | echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)" |
84 | |
85 | exit 0 |
86 | } |
87 | |
88 | moduledep() |
89 | { |
90 | if [ ! -f "/lib/modules/${kernel}/modules.dep" ] |
91 | then |
92 | die "No dep file found for kernel ${kernel}" |
93 | fi |
94 | |
95 | echo "Looking for deps of module $1" |
96 | deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \ |
97 | function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \ |
98 | function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ |
99 | /^\/lib/ { show(); \ |
100 | orig=modname($1); dep=""; \ |
101 | if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \ |
102 | /^ / { dep=sprintf("%s %s", dep, modname($1)); } \ |
103 | END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1) |
104 | [ -n "${deps}" ] && echo ":${deps}" || echo |
105 | } |
106 | |
107 | findone() { /usr/bin/find "$@" | /bin/awk '{ print $1; exit; }'; } |
108 | findall() { /usr/bin/find "$@"; } |
109 | |
110 | findmodule() |
111 | { |
112 | skiperrors="" |
113 | |
114 | if [[ $1 = --skiperrors ]] |
115 | then |
116 | skiperrors=--skiperrors |
117 | shift |
118 | fi |
119 | |
120 | local modName=$1 |
121 | |
122 | if [ "${modName}" = "off" -o "${modName}" = "null" ] |
123 | then |
124 | return |
125 | fi |
126 | |
127 | if [ $(echo ${modName} | cut -b1) = "-" ] |
128 | then |
129 | skiperrors=--skiperrors |
130 | modName=$(echo ${modName} | cut -b2-) |
131 | fi |
132 | |
133 | case "${MODULES} " in |
134 | *"/${modName}.ko "*) 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 ${i} |
164 | done |
165 | fi |
166 | |
167 | for modExt in o.gz o ko |
168 | do |
169 | for modDir in /lib/modules/${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 | else |
241 | cp ${verbose} -a ${MODULE} ${DEST}/lib || die |
242 | fi |
243 | |
244 | # generate modules load file |
245 | echo "$(basename ${MODULE} .ko)" >> ${DEST}/etc/$(basename ${list}) || die |
246 | done |
247 | |
248 | export ALL_MODULES="${ALL_MODULES} ${MODULES}" |
249 | unset MODULES |
250 | } |
251 | |
252 | # need r00t privs |
253 | [[ $(id -u) != 0 ]] && die "you must be r00t." |
254 | |
255 | # enforce initramfs method as default |
256 | [[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs |
257 | |
258 | while [ $# -gt 0 ]; do |
259 | case $1 in |
260 | --version) |
261 | echo "mkinitrd: version ${VERSION}" |
262 | exit 0 |
263 | ;; |
264 | |
265 | -v) verbose=-v ;; |
266 | -f) force=1 ;; |
267 | --nocompress) compress="" ;; |
268 | --image-version) img_vers=yes ;; |
269 | --allow-missing) allowmissing=yes ;; |
270 | --noresume) noresume=1 ;; |
271 | --help) usage -n ;; |
272 | --initramfs) IMAGE_TYPE=initramfs ;; |
273 | --loopback) IMAGE_TYPE=loopback ;; |
274 | --no-strip) NOSTRIP=true ;; |
275 | --linuxrc) shift; LINUXRC="$1" ;; |
276 | *) |
277 | if [ -z "${target}" ] |
278 | then |
279 | target=$1 |
280 | elif [ -z "${kernel}" ] |
281 | then |
282 | kernel=$1 |
283 | else |
284 | usage |
285 | fi |
286 | ;; |
287 | esac |
288 | |
289 | shift |
290 | done |
291 | |
292 | # no kernel or target given |
293 | if [[ -z ${target} ]] || [[ -z ${kernel} ]] |
294 | then |
295 | usage |
296 | fi |
297 | |
298 | # die if linuxrc does not exist |
299 | [[ ! -e ${LINUXRC} ]] && die "linuxrc '${LINUXRC}' not found." |
300 | |
301 | # create basic filesystem layout |
302 | install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot} || die |
303 | |
304 | # install busybox |
305 | echo "$(which busybox.mkinitrd)" |
306 | install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die |
307 | for i in '[' ash basename cat cut clear cp dirname echo env false find \ |
308 | grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \ |
309 | ps pwd rm rmdir sh sleep test touch true umount uname \ |
310 | xargs yes chmod chown |
311 | do |
312 | # use soft links from now on; |
313 | # hardlinks in initramfs apears to be broken on newer kernels |
314 | # -> "request module: runaway loop modprobe binfmt-0000" |
315 | # see: http://www.gossamer-threads.com/lists/linux/kernel/728042 |
316 | ln -s /bin/busybox ${DEST}/bin/${i} || die "${i}" |
317 | done |
318 | |
319 | # sbin related |
320 | for i in chroot init losetup modprobe pivot_root |
321 | do |
322 | # static links |
323 | ln ${DEST}/bin/busybox ${DEST}/sbin/${i} || die "${i}" |
324 | done |
325 | |
326 | # install run-init |
327 | echo "$(which run-init.mkinitrd)" |
328 | install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init || die |
329 | |
330 | # install insmod.static |
331 | echo "$(which insmod.static)" |
332 | install -m0755 $(which insmod.static) ${DEST}/sbin/insmod || die |
333 | |
334 | # create some needed device nodes |
335 | install -o root -g root -m0754 ${MAKEDEV} ${DEST}/dev/MAKEDEV || die |
336 | ( cd ${DEST}/dev; ./MAKEDEV -v generic-nopty) |
337 | |
338 | ## install kernel modules ## |
339 | # generic needed |
340 | install_kernel_modules "${MODULES_GENERIC}" |
341 | |
342 | # usb |
343 | install_kernel_modules "${MODULES_USB}" |
344 | |
345 | # scsi |
346 | install_kernel_modules "${MODULES_SCSI}" |
347 | |
348 | # sata |
349 | install_kernel_modules "${MODULES_SATA}" |
350 | |
351 | # pata |
352 | install_kernel_modules "${MODULES_PATA}" |
353 | |
354 | # framebuffer |
355 | install_kernel_modules "${MODULES_FRAMEBUFFER}" |
356 | |
357 | # show all modules |
358 | for i in ${ALL_MODULES} |
359 | do |
360 | echo ${i} |
361 | done |
362 | |
363 | # install linuxrc |
364 | install -m0755 ${LINUXRC} ${DEST}/init || die |
365 | |
366 | # create the image |
367 | echo "Creating initrd image '${target}' ..." |
368 | if [[ ${IMAGE_TYPE} = initramfs ]] |
369 | then |
370 | (cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE}) |
371 | cat ${IMAGE} > ${target} || die |
372 | fi |
373 | |
374 | if [[ ${IMAGE_TYPE} = loopback ]] |
375 | then |
376 | MOUNTTMP="$(mktemp -d)" |
377 | |
378 | # create ext2 img |
379 | dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die |
380 | mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die |
381 | mount -o loop ${IMAGE} ${MOUNTTMP} || die |
382 | mv ${DEST}/* ${MOUNTTMP} || die |
383 | umount ${MOUNTTMP} || die |
384 | gzip -9 ${IMAGE} || die |
385 | cat ${IMAGE}.gz > ${target} || die |
386 | [ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP} |
387 | |
388 | # create inird dir for pivot_root |
389 | [ ! -d /initrd ] && { install -d /initrd || die; } |
390 | fi |
391 | |
392 | # clean up |
393 | [ -d ${DEST} ] && rm -rf ${DEST} |
394 | [ -f ${IMAGE} ] && rm -f ${IMAGE} |
395 | |
396 | # all went ok at this point |
397 | exit 0 |