Annotation of /trunk/mkinitrd/mkinitrd-livecd.sh
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Fri Nov 24 17:44:09 2006 UTC (17 years, 10 months ago) by niro
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Fri Nov 24 17:44:09 2006 UTC (17 years, 10 months ago) by niro
File MIME type: application/x-sh
File size: 8283 byte(s)
fixed a typo
1 | niro | 333 | #!/bin/bash |
2 | niro | 402 | # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd-livecd.sh,v 1.5 2006-11-24 17:44:09 niro Exp $ |
3 | niro | 333 | |
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 | niro | 336 | 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 | niro | 400 | MAKEDEV="/usr/lib/mkinitrd/MAKEDEV.sh" |
49 | niro | 333 | |
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 | niro | 336 | # enforce initramfs method as default |
249 | [[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs | ||
250 | |||
251 | niro | 333 | 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 | niro | 344 | install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot} || die |
287 | niro | 333 | |
288 | # install busybox | ||
289 | echo "$(which busybox.mkinitrd)" | ||
290 | install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die | ||
291 | niro | 344 | 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 | niro | 333 | xargs yes chmod chown |
295 | do | ||
296 | # static links | ||
297 | ln ${DEST}/bin/busybox ${DEST}/bin/${i} || die "${i}" | ||
298 | done | ||
299 | |||
300 | niro | 344 | # 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 "${i}" | ||
305 | done | ||
306 | |||
307 | niro | 333 | # install run-init |
308 | echo "$(which run-init.mkinitrd)" | ||
309 | niro | 344 | install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init || die |
310 | niro | 333 | |
311 | # install insmod.static | ||
312 | echo "$(which insmod.static)" | ||
313 | niro | 344 | install -m0755 $(which insmod.static) ${DEST}/sbin/insmod || die |
314 | niro | 333 | |
315 | # create some needed device nodes | ||
316 | niro | 402 | install -o root -g root -m0754 ${MAKEDEV} ${DEST}/dev/MAKEDEV || die |
317 | niro | 400 | ( cd ${DEST}/dev; ./MAKEDEV -v generic-nopty) |
318 | niro | 333 | |
319 | ## install kernel modules ## | ||
320 | # generic needed | ||
321 | install_kernel_modules "${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 |