Annotation of /trunk/mkinitrd-magellan/livecd/mkinitrd-livecd.in
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Revision 664 -
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Mon Jan 14 19:35:02 2008 UTC (16 years, 9 months ago) by niro
File size: 9073 byte(s)
Mon Jan 14 19:35:02 2008 UTC (16 years, 9 months ago) by niro
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 | niro | 562 | #!/bin/bash |
2 | niro | 664 | # $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 | 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 | 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 | niro | 664 | echo " [--linuxrc /path/to/custom/linuxrc ]" |
81 | niro | 562 | 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 | 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 | 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 | niro | 664 | --linuxrc) shift; LINUXRC="$1" ;; |
276 | niro | 562 | *) |
277 | if [ -z "${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 | niro | 664 | # no kernel or target given |
293 | if [[ -z ${target} ]] || [[ -z ${kernel} ]] | ||
294 | then | ||
295 | usage | ||
296 | fi | ||
297 | niro | 562 | |
298 | niro | 664 | # die if linuxrc does not exist |
299 | [[ ! -e ${LINUXRC} ]] && die "linuxrc '${LINUXRC}' not found." | ||
300 | |||
301 | niro | 562 | # 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 | niro | 664 | # framebuffer |
355 | install_kernel_modules "${MODULES_FRAMEBUFFER}" | ||
356 | |||
357 | niro | 562 | # 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 |