Annotation of /tags/mkinitrd_5_0_8-r28_before_fork/mkinitrd/mkinitrd-livecd.sh
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Tue Feb 21 00:02:17 2006 UTC (18 years, 4 months ago) by niro
Original Path: trunk/mkinitrd/mkinitrd-livecd.sh
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File size: 9057 byte(s)
Tue Feb 21 00:02:17 2006 UTC (18 years, 4 months ago) by niro
Original Path: trunk/mkinitrd/mkinitrd-livecd.sh
File MIME type: application/x-sh
File size: 9057 byte(s)
mkinitrd-livecd; probably working
1 | niro | 333 | #!/bin/bash |
2 | # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd/mkinitrd-livecd.sh,v 1.1 2006-02-21 00:02:17 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="/home/tjoke/alx-cvs/magellan-src/mkinitrd/lib/linuxrc.sh" | ||
44 | #MODULES_GENERIC="/home/tjoke/alx-cvs/magellan-src/mkinitrd/lib/modules.generic" | ||
45 | #MODULES_USB="/home/tjoke/alx-cvs/magellan-src/mkinitrd/lib/modules.usb" | ||
46 | #MODULES_SCSI="/home/tjoke/alx-cvs/magellan-src/mkinitrd/lib/modules.scsi" | ||
47 | #MODULES_SATA="/home/tjoke/alx-cvs/magellan-src/mkinitrd/lib/modules.sata" | ||
48 | |||
49 | LINUXRC="/usr/lib/mkinitrd-livecd/linuxrc.sh" | ||
50 | MODULES_GENERIC="/usr/lib/mkinitrd-livecd/modules.generic" | ||
51 | MODULES_USB="/usr/lib/mkinitrd-livecd/modules.usb" | ||
52 | MODULES_SCSI="/usr/lib/mkinitrd-livecd/modules.scsi" | ||
53 | MODULES_SATA="/usr/lib/mkinitrd-livecd/modules.sata" | ||
54 | |||
55 | compress=1 | ||
56 | allowmissing="" | ||
57 | target="" | ||
58 | kernel="" | ||
59 | force="" | ||
60 | verbose="" | ||
61 | img_vers="" | ||
62 | builtins="" | ||
63 | modulefile=/etc/modules.conf | ||
64 | rc=0 | ||
65 | |||
66 | IMAGESIZE=4000 | ||
67 | PRESCSIMODS="sd_mod" | ||
68 | fstab="/etc/fstab" | ||
69 | |||
70 | vg_list="" | ||
71 | |||
72 | die() { echo "Error: $@"; exit 1; } | ||
73 | add_initrd() { echo "$@" >> ${DEST}/init || die; } | ||
74 | |||
75 | DEST="$(mktemp -d)" | ||
76 | IMAGE="$(mktemp)" | ||
77 | |||
78 | usage() | ||
79 | { | ||
80 | echo "usage: $(basename $0) [--version] [--help] [-v] [-f]" | ||
81 | echo " [--image-version] [--no-strip] [--nocompress]" | ||
82 | echo " <initrd-image> <kernel-version>" | ||
83 | echo | ||
84 | echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)" | ||
85 | |||
86 | exit 0 | ||
87 | } | ||
88 | |||
89 | moduledep() | ||
90 | { | ||
91 | if [ ! -f "/lib/modules/${kernel}/modules.dep" ] | ||
92 | then | ||
93 | die "No dep file found for kernel ${kernel}" | ||
94 | fi | ||
95 | |||
96 | echo "Looking for deps of module $1" | ||
97 | deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \ | ||
98 | function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \ | ||
99 | function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ | ||
100 | /^\/lib/ { show(); \ | ||
101 | orig=modname($1); dep=""; \ | ||
102 | if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \ | ||
103 | /^ / { dep=sprintf("%s %s", dep, modname($1)); } \ | ||
104 | END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1) | ||
105 | [ -n "${deps}" ] && echo ":${deps}" || echo | ||
106 | } | ||
107 | |||
108 | findone() { /usr/bin/find "$@" | /bin/awk '{ print $1; exit; }'; } | ||
109 | findall() { /usr/bin/find "$@"; } | ||
110 | |||
111 | findmodule() | ||
112 | { | ||
113 | skiperrors="" | ||
114 | |||
115 | if [[ $1 = --skiperrors ]] | ||
116 | then | ||
117 | skiperrors=--skiperrors | ||
118 | shift | ||
119 | fi | ||
120 | |||
121 | local modName=$1 | ||
122 | |||
123 | if [ "${modName}" = "off" -o "${modName}" = "null" ] | ||
124 | then | ||
125 | return | ||
126 | fi | ||
127 | |||
128 | if [ $(echo ${modName} | cut -b1) = "-" ] | ||
129 | then | ||
130 | skiperrors=--skiperrors | ||
131 | modName=$(echo ${modName} | cut -b2-) | ||
132 | fi | ||
133 | |||
134 | case "${MODULES} " in | ||
135 | *"/${modName}.ko "*) return ;; | ||
136 | esac | ||
137 | |||
138 | if echo ${builtins} | egrep -q '(^| )'${modName}'( |$)' | ||
139 | then | ||
140 | echo "module ${modName} assumed to be built in" | ||
141 | return | ||
142 | fi | ||
143 | |||
144 | # special cases | ||
145 | if [[ ${modName} = i2o_block ]] | ||
146 | then | ||
147 | findmodule i2o_core | ||
148 | findmodule -i2o_pci | ||
149 | modName="i2o_block" | ||
150 | elif [[ ${modName} = ppa ]] | ||
151 | then | ||
152 | findmodule parport | ||
153 | findmodule parport_pc | ||
154 | modName="ppa" | ||
155 | elif [[ ${modName} = sbp2 ]] | ||
156 | then | ||
157 | findmodule ieee1394 | ||
158 | findmodule ohci1394 | ||
159 | modName="sbp2" | ||
160 | else | ||
161 | moduledep ${modName} | ||
162 | for i in ${deps} | ||
163 | do | ||
164 | findmodule ${i} | ||
165 | done | ||
166 | fi | ||
167 | |||
168 | for modExt in o.gz o ko | ||
169 | do | ||
170 | for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel} | ||
171 | do | ||
172 | if [ -d ${modDir} ] | ||
173 | then | ||
174 | fmPath=$(findone ${modDir} -name ${modName}.${modExt}) | ||
175 | if [ -f "${fmPath}" ] | ||
176 | then | ||
177 | break 2 | ||
178 | fi | ||
179 | fi | ||
180 | done | ||
181 | done | ||
182 | |||
183 | if [ ! -f ${fmPath} ] | ||
184 | then | ||
185 | if [ -n "${skiperrors}" ] | ||
186 | then | ||
187 | return | ||
188 | fi | ||
189 | |||
190 | # ignore the absence of the scsi modules | ||
191 | for n in ${PRESCSIMODS} | ||
192 | do | ||
193 | if [[ ${n} = ${modName} ]] | ||
194 | then | ||
195 | return | ||
196 | fi | ||
197 | done | ||
198 | |||
199 | if [ -n "${allowmissing}" ] | ||
200 | then | ||
201 | echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway" | ||
202 | return | ||
203 | fi | ||
204 | |||
205 | die "No module ${modName} found for kernel ${kernel}, aborting." | ||
206 | fi | ||
207 | |||
208 | # only need to add each module once | ||
209 | MODULES="${MODULES} ${fmPath}" | ||
210 | } | ||
211 | |||
212 | install_kernel_modules() | ||
213 | { | ||
214 | local list="$1" | ||
215 | local module | ||
216 | |||
217 | while read module args | ||
218 | do | ||
219 | case "${module}" in | ||
220 | \#*|"") continue ;; | ||
221 | esac | ||
222 | |||
223 | findmodule ${module} | ||
224 | done << EOF | ||
225 | $(cat ${list}; echo) | ||
226 | EOF | ||
227 | |||
228 | # create empty modules.lala file | ||
229 | :> ${DEST}/etc/$(basename ${list}) | ||
230 | |||
231 | # install detected modules | ||
232 | echo "Coping your modules to '${DEST}/lib' ..." | ||
233 | for MODULE in ${MODULES} | ||
234 | do | ||
235 | if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]] | ||
236 | then | ||
237 | /usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die | ||
238 | else | ||
239 | cp ${verbose} -a ${MODULE} ${DEST}/lib || die | ||
240 | fi | ||
241 | |||
242 | # generate modules load file | ||
243 | echo "$(basename ${MODULE} .ko)" >> ${DEST}/etc/$(basename ${list}) || die | ||
244 | done | ||
245 | |||
246 | export ALL_MODULES="${ALL_MODULES} ${MODULES}" | ||
247 | unset MODULES | ||
248 | } | ||
249 | |||
250 | # need r00t privs | ||
251 | [[ $(id -u) != 0 ]] && die "you must be r00t." | ||
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 ${DEST}/{bin,dev,etc,lib,loopfs,proc,sys,sysroot} || die | ||
289 | |||
290 | # install busybox | ||
291 | echo "$(which busybox.mkinitrd)" | ||
292 | install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die | ||
293 | for i in '[' ash basename cat cut chroot clear cp dirname echo env false find \ | ||
294 | grep gunzip gzip init ln ls loadkmap losetup mkdir mknod modprobe more mount mv \ | ||
295 | pivot_root ps pwd rm rmdir sh sleep test touch true umount uname \ | ||
296 | xargs yes chmod chown | ||
297 | do | ||
298 | # static links | ||
299 | ln ${DEST}/bin/busybox ${DEST}/bin/${i} || die "${i}" | ||
300 | done | ||
301 | |||
302 | # install run-init | ||
303 | echo "$(which run-init.mkinitrd)" | ||
304 | install -m0755 $(which run-init.mkinitrd) ${DEST}/bin/run-init || die | ||
305 | |||
306 | # install insmod.static | ||
307 | echo "$(which insmod.static)" | ||
308 | install -m0755 $(which insmod.static) ${DEST}/bin/insmod || die | ||
309 | |||
310 | # install udev | ||
311 | cp -a /etc/udev ${DEST}/etc || die | ||
312 | install -m0755 /sbin/udev.static ${DEST}/bin/udev || die | ||
313 | install -m0755 /sbin/udevd.static ${DEST}/bin/udevd || die | ||
314 | install -m0755 /sbin/udevstart.static ${DEST}/bin/udevstart || die | ||
315 | |||
316 | # create some needed device nodes | ||
317 | mkdir ${DEST}/dev/mapper || die | ||
318 | mknod ${DEST}/dev/console c 5 1 || die | ||
319 | mknod ${DEST}/dev/null c 1 3 || die | ||
320 | mknod ${DEST}/dev/ram b 1 1 || die | ||
321 | mknod ${DEST}/dev/rtc c 10 135 || die | ||
322 | mknod ${DEST}/dev/systty c 4 0 || die | ||
323 | mknod ${DEST}/dev/tty c 5 0 || die | ||
324 | mknod ${DEST}/dev/zero c 1 5 || die | ||
325 | for ((i=0; i < 13; i++)) | ||
326 | do | ||
327 | mknod ${DEST}/dev/tty${i} c 4 ${i} || die "tty${i}" | ||
328 | done | ||
329 | for ((i=64; i < 68; i++)) | ||
330 | do | ||
331 | mknod ${DEST}/dev/ttyS$((${i} - 64)) c 4 ${i} || die "ttyS$((${i} - 64))" | ||
332 | done | ||
333 | |||
334 | ## install kernel modules ## | ||
335 | # generic needed | ||
336 | install_kernel_modules "${MODULES_GENERIC}" | ||
337 | |||
338 | # usb | ||
339 | install_kernel_modules "${MODULES_USB}" | ||
340 | |||
341 | # scsi | ||
342 | install_kernel_modules "${MODULES_SCSI}" | ||
343 | |||
344 | # sata | ||
345 | install_kernel_modules "${MODULES_SATA}" | ||
346 | |||
347 | # show all modules | ||
348 | for i in ${ALL_MODULES} | ||
349 | do | ||
350 | echo ${i} | ||
351 | done | ||
352 | |||
353 | # install linuxrc | ||
354 | install -m0755 ${LINUXRC} ${DEST}/init || die | ||
355 | |||
356 | # create the image | ||
357 | echo "Creating initrd image '${target}' ..." | ||
358 | if [[ ${IMAGE_TYPE} = initramfs ]] | ||
359 | then | ||
360 | (cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE}) | ||
361 | cat ${IMAGE} > ${target} || die | ||
362 | fi | ||
363 | |||
364 | if [[ ${IMAGE_TYPE} = loopback ]] | ||
365 | then | ||
366 | MOUNTTMP="$(mktemp -d)" | ||
367 | |||
368 | # create ext2 img | ||
369 | dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die | ||
370 | mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die | ||
371 | mount -o loop ${IMAGE} ${MOUNTTMP} || die | ||
372 | mv ${DEST}/* ${MOUNTTMP} || die | ||
373 | umount ${MOUNTTMP} || die | ||
374 | gzip -9 ${IMAGE} || die | ||
375 | cat ${IMAGE}.gz > ${target} || die | ||
376 | [ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP} | ||
377 | |||
378 | # create inird dir for pivot_root | ||
379 | [ ! -d /initrd ] && { install -d /initrd || die; } | ||
380 | fi | ||
381 | |||
382 | # clean up | ||
383 | [ -d ${DEST} ] && rm -rf ${DEST} | ||
384 | [ -f ${IMAGE} ] && rm -f ${IMAGE} | ||
385 | |||
386 | # all went ok at this point | ||
387 | exit 0 |