Contents of /tags/mkinitrd-6_1_10/livecd/mkinitrd-livecd.in
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Sun Sep 2 00:40:22 2007 UTC (17 years ago) by niro
Original Path: trunk/mkinitrd-magellan/livecd/mkinitrd-livecd.in
File size: 8624 byte(s)
Sun Sep 2 00:40:22 2007 UTC (17 years ago) by niro
Original Path: trunk/mkinitrd-magellan/livecd/mkinitrd-livecd.in
File size: 8624 byte(s)
-renamed to mkinitrd-livecd.in
1 | #!/bin/bash |
2 | # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd-magellan/livecd/mkinitrd-livecd.in,v 1.1 2007-09-02 00:40:22 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="${LIBDIR}/mkinitrd/modules.pata" |
50 | MAKEDEV="${LIBDIR}/mkinitrd/MAKEDEV.sh" |
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 " <initrd-image> <kernel-version>" |
80 | echo |
81 | echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)" |
82 | |
83 | exit 0 |
84 | } |
85 | |
86 | moduledep() |
87 | { |
88 | if [ ! -f "/lib/modules/${kernel}/modules.dep" ] |
89 | then |
90 | die "No dep file found for kernel ${kernel}" |
91 | fi |
92 | |
93 | echo "Looking for deps of module $1" |
94 | deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \ |
95 | function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \ |
96 | function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ |
97 | /^\/lib/ { show(); \ |
98 | orig=modname($1); dep=""; \ |
99 | if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \ |
100 | /^ / { dep=sprintf("%s %s", dep, modname($1)); } \ |
101 | END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1) |
102 | [ -n "${deps}" ] && echo ":${deps}" || echo |
103 | } |
104 | |
105 | findone() { /usr/bin/find "$@" | /bin/awk '{ print $1; exit; }'; } |
106 | findall() { /usr/bin/find "$@"; } |
107 | |
108 | findmodule() |
109 | { |
110 | skiperrors="" |
111 | |
112 | if [[ $1 = --skiperrors ]] |
113 | then |
114 | skiperrors=--skiperrors |
115 | shift |
116 | fi |
117 | |
118 | local modName=$1 |
119 | |
120 | if [ "${modName}" = "off" -o "${modName}" = "null" ] |
121 | then |
122 | return |
123 | fi |
124 | |
125 | if [ $(echo ${modName} | cut -b1) = "-" ] |
126 | then |
127 | skiperrors=--skiperrors |
128 | modName=$(echo ${modName} | cut -b2-) |
129 | fi |
130 | |
131 | case "${MODULES} " in |
132 | *"/${modName}.ko "*) return ;; |
133 | esac |
134 | |
135 | if echo ${builtins} | egrep -q '(^| )'${modName}'( |$)' |
136 | then |
137 | echo "module ${modName} assumed to be built in" |
138 | return |
139 | fi |
140 | |
141 | # special cases |
142 | if [[ ${modName} = i2o_block ]] |
143 | then |
144 | findmodule i2o_core |
145 | findmodule -i2o_pci |
146 | modName="i2o_block" |
147 | elif [[ ${modName} = ppa ]] |
148 | then |
149 | findmodule parport |
150 | findmodule parport_pc |
151 | modName="ppa" |
152 | elif [[ ${modName} = sbp2 ]] |
153 | then |
154 | findmodule ieee1394 |
155 | findmodule ohci1394 |
156 | modName="sbp2" |
157 | else |
158 | moduledep ${modName} |
159 | for i in ${deps} |
160 | do |
161 | findmodule ${i} |
162 | done |
163 | fi |
164 | |
165 | for modExt in o.gz o ko |
166 | do |
167 | for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel} |
168 | do |
169 | if [ -d ${modDir} ] |
170 | then |
171 | fmPath=$(findone ${modDir} -name ${modName}.${modExt}) |
172 | if [ -f "${fmPath}" ] |
173 | then |
174 | break 2 |
175 | fi |
176 | fi |
177 | done |
178 | done |
179 | |
180 | if [ ! -f ${fmPath} ] |
181 | then |
182 | if [ -n "${skiperrors}" ] |
183 | then |
184 | return |
185 | fi |
186 | |
187 | # ignore the absence of the scsi modules |
188 | for n in ${PRESCSIMODS} |
189 | do |
190 | if [[ ${n} = ${modName} ]] |
191 | then |
192 | return |
193 | fi |
194 | done |
195 | |
196 | if [ -n "${allowmissing}" ] |
197 | then |
198 | echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway" |
199 | return |
200 | fi |
201 | |
202 | die "No module ${modName} found for kernel ${kernel}, aborting." |
203 | fi |
204 | |
205 | # only need to add each module once |
206 | MODULES="${MODULES} ${fmPath}" |
207 | } |
208 | |
209 | install_kernel_modules() |
210 | { |
211 | local list="$1" |
212 | local module |
213 | |
214 | while read module args |
215 | do |
216 | case "${module}" in |
217 | \#*|"") continue ;; |
218 | esac |
219 | |
220 | findmodule ${module} |
221 | done << EOF |
222 | $(cat ${list}; echo) |
223 | EOF |
224 | |
225 | # create empty modules.lala file |
226 | :> ${DEST}/etc/$(basename ${list}) |
227 | |
228 | # install detected modules |
229 | echo "Coping your modules to '${DEST}/lib' ..." |
230 | for MODULE in ${MODULES} |
231 | do |
232 | if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]] |
233 | then |
234 | /usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die |
235 | else |
236 | cp ${verbose} -a ${MODULE} ${DEST}/lib || die |
237 | fi |
238 | |
239 | # generate modules load file |
240 | echo "$(basename ${MODULE} .ko)" >> ${DEST}/etc/$(basename ${list}) || die |
241 | done |
242 | |
243 | export ALL_MODULES="${ALL_MODULES} ${MODULES}" |
244 | unset MODULES |
245 | } |
246 | |
247 | # need r00t privs |
248 | [[ $(id -u) != 0 ]] && die "you must be r00t." |
249 | |
250 | # enforce initramfs method as default |
251 | [[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs |
252 | |
253 | while [ $# -gt 0 ]; do |
254 | case $1 in |
255 | --version) |
256 | echo "mkinitrd: version ${VERSION}" |
257 | exit 0 |
258 | ;; |
259 | |
260 | -v) verbose=-v ;; |
261 | -f) force=1 ;; |
262 | --nocompress) compress="" ;; |
263 | --image-version) img_vers=yes ;; |
264 | --allow-missing) allowmissing=yes ;; |
265 | --noresume) noresume=1 ;; |
266 | --help) usage -n ;; |
267 | --initramfs) IMAGE_TYPE=initramfs ;; |
268 | --loopback) IMAGE_TYPE=loopback ;; |
269 | --no-strip) NOSTRIP=true ;; |
270 | *) |
271 | if [ -z "${target}" ] |
272 | then |
273 | target=$1 |
274 | elif [ -z "${kernel}" ] |
275 | then |
276 | kernel=$1 |
277 | else |
278 | usage |
279 | fi |
280 | ;; |
281 | esac |
282 | |
283 | shift |
284 | done |
285 | |
286 | |
287 | # create basic filesystem layout |
288 | install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot} || die |
289 | |
290 | # install busybox |
291 | echo "$(which busybox.mkinitrd)" |
292 | install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die |
293 | for i in '[' ash basename cat cut clear cp dirname echo env false find \ |
294 | grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \ |
295 | ps pwd rm rmdir sh sleep test touch true umount uname \ |
296 | xargs yes chmod chown |
297 | do |
298 | # use soft links from now on; |
299 | # hardlinks in initramfs apears to be broken on newer kernels |
300 | # -> "request module: runaway loop modprobe binfmt-0000" |
301 | # see: http://www.gossamer-threads.com/lists/linux/kernel/728042 |
302 | ln -s /bin/busybox ${DEST}/bin/${i} || die "${i}" |
303 | done |
304 | |
305 | # sbin related |
306 | for i in chroot init losetup modprobe pivot_root |
307 | do |
308 | # static links |
309 | ln ${DEST}/bin/busybox ${DEST}/sbin/${i} || die "${i}" |
310 | done |
311 | |
312 | # install run-init |
313 | echo "$(which run-init.mkinitrd)" |
314 | install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init || die |
315 | |
316 | # install insmod.static |
317 | echo "$(which insmod.static)" |
318 | install -m0755 $(which insmod.static) ${DEST}/sbin/insmod || die |
319 | |
320 | # create some needed device nodes |
321 | install -o root -g root -m0754 ${MAKEDEV} ${DEST}/dev/MAKEDEV || die |
322 | ( cd ${DEST}/dev; ./MAKEDEV -v generic-nopty) |
323 | |
324 | ## install kernel modules ## |
325 | # generic needed |
326 | install_kernel_modules "${MODULES_GENERIC}" |
327 | |
328 | # usb |
329 | install_kernel_modules "${MODULES_USB}" |
330 | |
331 | # scsi |
332 | install_kernel_modules "${MODULES_SCSI}" |
333 | |
334 | # sata |
335 | install_kernel_modules "${MODULES_SATA}" |
336 | |
337 | # pata |
338 | install_kernel_modules "${MODULES_PATA}" |
339 | |
340 | # show all modules |
341 | for i in ${ALL_MODULES} |
342 | do |
343 | echo ${i} |
344 | done |
345 | |
346 | # install linuxrc |
347 | install -m0755 ${LINUXRC} ${DEST}/init || die |
348 | |
349 | # create the image |
350 | echo "Creating initrd image '${target}' ..." |
351 | if [[ ${IMAGE_TYPE} = initramfs ]] |
352 | then |
353 | (cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE}) |
354 | cat ${IMAGE} > ${target} || die |
355 | fi |
356 | |
357 | if [[ ${IMAGE_TYPE} = loopback ]] |
358 | then |
359 | MOUNTTMP="$(mktemp -d)" |
360 | |
361 | # create ext2 img |
362 | dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die |
363 | mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die |
364 | mount -o loop ${IMAGE} ${MOUNTTMP} || die |
365 | mv ${DEST}/* ${MOUNTTMP} || die |
366 | umount ${MOUNTTMP} || die |
367 | gzip -9 ${IMAGE} || die |
368 | cat ${IMAGE}.gz > ${target} || die |
369 | [ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP} |
370 | |
371 | # create inird dir for pivot_root |
372 | [ ! -d /initrd ] && { install -d /initrd || die; } |
373 | fi |
374 | |
375 | # clean up |
376 | [ -d ${DEST} ] && rm -rf ${DEST} |
377 | [ -f ${IMAGE} ] && rm -f ${IMAGE} |
378 | |
379 | # all went ok at this point |
380 | exit 0 |