Contents of /trunk/mkinitrd/mkinitrd-livecd.sh
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Fri Nov 24 17:27:28 2006 UTC (17 years, 10 months ago) by niro
File MIME type: application/x-sh
File size: 8286 byte(s)
Fri Nov 24 17:27:28 2006 UTC (17 years, 10 months ago) by niro
File MIME type: application/x-sh
File size: 8286 byte(s)
removed udev, using a static /dev for initial boots. udev gets started later
1 | #!/bin/bash |
2 | # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd-livecd.sh,v 1.4 2006-11-24 17:24:15 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=5.0.8 |
37 | |
38 | MODULES="" |
39 | NOSTRIP=false |
40 | |
41 | [ -e /etc/conf.d/mkinitrd-livecd ] && . /etc/conf.d/mkinitrd-livecd |
42 | |
43 | LINUXRC="/usr/lib/mkinitrd/linuxrc.sh" |
44 | MODULES_GENERIC="/usr/lib/mkinitrd/modules.generic" |
45 | MODULES_USB="/usr/lib/mkinitrd/modules.usb" |
46 | MODULES_SCSI="/usr/lib/mkinitrd/modules.scsi" |
47 | MODULES_SATA="/usr/lib/mkinitrd/modules.sata" |
48 | MAKEDEV="/usr/lib/mkinitrd/MAKEDEV.sh" |
49 | |
50 | compress=1 |
51 | allowmissing="" |
52 | target="" |
53 | kernel="" |
54 | force="" |
55 | verbose="" |
56 | img_vers="" |
57 | builtins="" |
58 | modulefile=/etc/modules.conf |
59 | rc=0 |
60 | |
61 | IMAGESIZE=4000 |
62 | PRESCSIMODS="sd_mod" |
63 | fstab="/etc/fstab" |
64 | |
65 | vg_list="" |
66 | |
67 | die() { echo "Error: $@"; exit 1; } |
68 | add_initrd() { echo "$@" >> ${DEST}/init || die; } |
69 | |
70 | DEST="$(mktemp -d)" |
71 | IMAGE="$(mktemp)" |
72 | |
73 | usage() |
74 | { |
75 | echo "usage: $(basename $0) [--version] [--help] [-v] [-f]" |
76 | echo " [--image-version] [--no-strip] [--nocompress]" |
77 | echo " <initrd-image> <kernel-version>" |
78 | echo |
79 | echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)" |
80 | |
81 | exit 0 |
82 | } |
83 | |
84 | moduledep() |
85 | { |
86 | if [ ! -f "/lib/modules/${kernel}/modules.dep" ] |
87 | then |
88 | die "No dep file found for kernel ${kernel}" |
89 | fi |
90 | |
91 | echo "Looking for deps of module $1" |
92 | deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \ |
93 | function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \ |
94 | function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ |
95 | /^\/lib/ { show(); \ |
96 | orig=modname($1); dep=""; \ |
97 | if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \ |
98 | /^ / { dep=sprintf("%s %s", dep, modname($1)); } \ |
99 | END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1) |
100 | [ -n "${deps}" ] && echo ":${deps}" || echo |
101 | } |
102 | |
103 | findone() { /usr/bin/find "$@" | /bin/awk '{ print $1; exit; }'; } |
104 | findall() { /usr/bin/find "$@"; } |
105 | |
106 | findmodule() |
107 | { |
108 | skiperrors="" |
109 | |
110 | if [[ $1 = --skiperrors ]] |
111 | then |
112 | skiperrors=--skiperrors |
113 | shift |
114 | fi |
115 | |
116 | local modName=$1 |
117 | |
118 | if [ "${modName}" = "off" -o "${modName}" = "null" ] |
119 | then |
120 | return |
121 | fi |
122 | |
123 | if [ $(echo ${modName} | cut -b1) = "-" ] |
124 | then |
125 | skiperrors=--skiperrors |
126 | modName=$(echo ${modName} | cut -b2-) |
127 | fi |
128 | |
129 | case "${MODULES} " in |
130 | *"/${modName}.ko "*) return ;; |
131 | esac |
132 | |
133 | if echo ${builtins} | egrep -q '(^| )'${modName}'( |$)' |
134 | then |
135 | echo "module ${modName} assumed to be built in" |
136 | return |
137 | fi |
138 | |
139 | # special cases |
140 | if [[ ${modName} = i2o_block ]] |
141 | then |
142 | findmodule i2o_core |
143 | findmodule -i2o_pci |
144 | modName="i2o_block" |
145 | elif [[ ${modName} = ppa ]] |
146 | then |
147 | findmodule parport |
148 | findmodule parport_pc |
149 | modName="ppa" |
150 | elif [[ ${modName} = sbp2 ]] |
151 | then |
152 | findmodule ieee1394 |
153 | findmodule ohci1394 |
154 | modName="sbp2" |
155 | else |
156 | moduledep ${modName} |
157 | for i in ${deps} |
158 | do |
159 | findmodule ${i} |
160 | done |
161 | fi |
162 | |
163 | for modExt in o.gz o ko |
164 | do |
165 | for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel} |
166 | do |
167 | if [ -d ${modDir} ] |
168 | then |
169 | fmPath=$(findone ${modDir} -name ${modName}.${modExt}) |
170 | if [ -f "${fmPath}" ] |
171 | then |
172 | break 2 |
173 | fi |
174 | fi |
175 | done |
176 | done |
177 | |
178 | if [ ! -f ${fmPath} ] |
179 | then |
180 | if [ -n "${skiperrors}" ] |
181 | then |
182 | return |
183 | fi |
184 | |
185 | # ignore the absence of the scsi modules |
186 | for n in ${PRESCSIMODS} |
187 | do |
188 | if [[ ${n} = ${modName} ]] |
189 | then |
190 | return |
191 | fi |
192 | done |
193 | |
194 | if [ -n "${allowmissing}" ] |
195 | then |
196 | echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway" |
197 | return |
198 | fi |
199 | |
200 | die "No module ${modName} found for kernel ${kernel}, aborting." |
201 | fi |
202 | |
203 | # only need to add each module once |
204 | MODULES="${MODULES} ${fmPath}" |
205 | } |
206 | |
207 | install_kernel_modules() |
208 | { |
209 | local list="$1" |
210 | local module |
211 | |
212 | while read module args |
213 | do |
214 | case "${module}" in |
215 | \#*|"") continue ;; |
216 | esac |
217 | |
218 | findmodule ${module} |
219 | done << EOF |
220 | $(cat ${list}; echo) |
221 | EOF |
222 | |
223 | # create empty modules.lala file |
224 | :> ${DEST}/etc/$(basename ${list}) |
225 | |
226 | # install detected modules |
227 | echo "Coping your modules to '${DEST}/lib' ..." |
228 | for MODULE in ${MODULES} |
229 | do |
230 | if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]] |
231 | then |
232 | /usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die |
233 | else |
234 | cp ${verbose} -a ${MODULE} ${DEST}/lib || die |
235 | fi |
236 | |
237 | # generate modules load file |
238 | echo "$(basename ${MODULE} .ko)" >> ${DEST}/etc/$(basename ${list}) || die |
239 | done |
240 | |
241 | export ALL_MODULES="${ALL_MODULES} ${MODULES}" |
242 | unset MODULES |
243 | } |
244 | |
245 | # need r00t privs |
246 | [[ $(id -u) != 0 ]] && die "you must be r00t." |
247 | |
248 | # enforce initramfs method as default |
249 | [[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs |
250 | |
251 | while [ $# -gt 0 ]; do |
252 | case $1 in |
253 | --version) |
254 | echo "mkinitrd: version ${VERSION}" |
255 | exit 0 |
256 | ;; |
257 | |
258 | -v) verbose=-v ;; |
259 | -f) force=1 ;; |
260 | --nocompress) compress="" ;; |
261 | --image-version) img_vers=yes ;; |
262 | --allow-missing) allowmissing=yes ;; |
263 | --noresume) noresume=1 ;; |
264 | --help) usage -n ;; |
265 | --initramfs) IMAGE_TYPE=initramfs ;; |
266 | --loopback) IMAGE_TYPE=loopback ;; |
267 | --no-strip) NOSTRIP=true ;; |
268 | *) |
269 | if [ -z "${target}" ] |
270 | then |
271 | target=$1 |
272 | elif [ -z "${kernel}" ] |
273 | then |
274 | kernel=$1 |
275 | else |
276 | usage |
277 | fi |
278 | ;; |
279 | esac |
280 | |
281 | shift |
282 | done |
283 | |
284 | |
285 | # create basic filesystem layout |
286 | install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot} || die |
287 | |
288 | # install busybox |
289 | echo "$(which busybox.mkinitrd)" |
290 | install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die |
291 | for i in '[' ash basename cat cut clear cp dirname echo env false find \ |
292 | grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \ |
293 | ps pwd rm rmdir sh sleep test touch true umount uname \ |
294 | xargs yes chmod chown |
295 | do |
296 | # static links |
297 | ln ${DEST}/bin/busybox ${DEST}/bin/${i} || die "${i}" |
298 | done |
299 | |
300 | # sbin related |
301 | for i in chroot init losetup modprobe pivot_root |
302 | do |
303 | # static links |
304 | ln ${DEST}/bin/busybox ${DEST}/sbin/${i} || die "${i}" |
305 | done |
306 | |
307 | # install run-init |
308 | echo "$(which run-init.mkinitrd)" |
309 | install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init || die |
310 | |
311 | # install insmod.static |
312 | echo "$(which insmod.static)" |
313 | install -m0755 $(which insmod.static) ${DEST}/sbin/insmod || die |
314 | |
315 | # create some needed device nodes |
316 | install -o root -g root -m0754 ${MAKEDEV} ${DESTDIR}/dev/MAKEDEV || die |
317 | ( cd ${DEST}/dev; ./MAKEDEV -v generic-nopty) |
318 | |
319 | ## install kernel modules ## |
320 | # generic needed |
321 | install_kernel_modules "${MODULES_GENERIC}" |
322 | |
323 | # usb |
324 | install_kernel_modules "${MODULES_USB}" |
325 | |
326 | # scsi |
327 | install_kernel_modules "${MODULES_SCSI}" |
328 | |
329 | # sata |
330 | install_kernel_modules "${MODULES_SATA}" |
331 | |
332 | # show all modules |
333 | for i in ${ALL_MODULES} |
334 | do |
335 | echo ${i} |
336 | done |
337 | |
338 | # install linuxrc |
339 | install -m0755 ${LINUXRC} ${DEST}/init || die |
340 | |
341 | # create the image |
342 | echo "Creating initrd image '${target}' ..." |
343 | if [[ ${IMAGE_TYPE} = initramfs ]] |
344 | then |
345 | (cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE}) |
346 | cat ${IMAGE} > ${target} || die |
347 | fi |
348 | |
349 | if [[ ${IMAGE_TYPE} = loopback ]] |
350 | then |
351 | MOUNTTMP="$(mktemp -d)" |
352 | |
353 | # create ext2 img |
354 | dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die |
355 | mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die |
356 | mount -o loop ${IMAGE} ${MOUNTTMP} || die |
357 | mv ${DEST}/* ${MOUNTTMP} || die |
358 | umount ${MOUNTTMP} || die |
359 | gzip -9 ${IMAGE} || die |
360 | cat ${IMAGE}.gz > ${target} || die |
361 | [ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP} |
362 | |
363 | # create inird dir for pivot_root |
364 | [ ! -d /initrd ] && { install -d /initrd || die; } |
365 | fi |
366 | |
367 | # clean up |
368 | [ -d ${DEST} ] && rm -rf ${DEST} |
369 | [ -f ${IMAGE} ] && rm -f ${IMAGE} |
370 | |
371 | # all went ok at this point |
372 | exit 0 |