Contents of /trunk/mkinitrd-magellan/livecd/mkinitrd-livecd
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Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
File size: 8596 byte(s)
Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
File size: 8596 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | #!/bin/bash |
2 | # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd-magellan/livecd/mkinitrd-livecd,v 1.1 2007-09-01 22:44:23 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 | 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 | MODULES_PATA="/usr/lib/mkinitrd/modules.pata" |
49 | MAKEDEV="/usr/lib/mkinitrd/MAKEDEV.sh" |
50 | |
51 | compress=1 |
52 | allowmissing="" |
53 | target="" |
54 | kernel="" |
55 | force="" |
56 | verbose="" |
57 | img_vers="" |
58 | builtins="" |
59 | modulefile=/etc/modules.conf |
60 | rc=0 |
61 | |
62 | IMAGESIZE=4000 |
63 | PRESCSIMODS="sd_mod" |
64 | fstab="/etc/fstab" |
65 | |
66 | vg_list="" |
67 | |
68 | die() { echo "Error: $@"; exit 1; } |
69 | add_initrd() { echo "$@" >> ${DEST}/init || die; } |
70 | |
71 | DEST="$(mktemp -d)" |
72 | IMAGE="$(mktemp)" |
73 | |
74 | usage() |
75 | { |
76 | echo "usage: $(basename $0) [--version] [--help] [-v] [-f]" |
77 | echo " [--image-version] [--no-strip] [--nocompress]" |
78 | echo " <initrd-image> <kernel-version>" |
79 | echo |
80 | echo " (ex: $(basename $0) /boot/initrd-2.2.5-15.img 2.2.5-15)" |
81 | |
82 | exit 0 |
83 | } |
84 | |
85 | moduledep() |
86 | { |
87 | if [ ! -f "/lib/modules/${kernel}/modules.dep" ] |
88 | then |
89 | die "No dep file found for kernel ${kernel}" |
90 | fi |
91 | |
92 | echo "Looking for deps of module $1" |
93 | deps=$(awk 'BEGIN { searched=ARGV[2]; ARGV[2]=""; rc=1 } \ |
94 | function modname(filename) { match(filename, /\/([^\/]+)\.k?o:?$/, ret); return ret[1] } \ |
95 | function show() { if (orig == searched) { print dep; orig=""; rc=0; exit } } \ |
96 | /^\/lib/ { show(); \ |
97 | orig=modname($1); dep=""; \ |
98 | if ($2) { for (i = 2; i <= NF; i++) { dep=sprintf("%s %s", dep, modname($i)); } } } \ |
99 | /^ / { dep=sprintf("%s %s", dep, modname($1)); } \ |
100 | END { show(); exit(rc) }' /lib/modules/${kernel}/modules.dep $1) |
101 | [ -n "${deps}" ] && echo ":${deps}" || echo |
102 | } |
103 | |
104 | findone() { /usr/bin/find "$@" | /bin/awk '{ print $1; exit; }'; } |
105 | findall() { /usr/bin/find "$@"; } |
106 | |
107 | findmodule() |
108 | { |
109 | skiperrors="" |
110 | |
111 | if [[ $1 = --skiperrors ]] |
112 | then |
113 | skiperrors=--skiperrors |
114 | shift |
115 | fi |
116 | |
117 | local modName=$1 |
118 | |
119 | if [ "${modName}" = "off" -o "${modName}" = "null" ] |
120 | then |
121 | return |
122 | fi |
123 | |
124 | if [ $(echo ${modName} | cut -b1) = "-" ] |
125 | then |
126 | skiperrors=--skiperrors |
127 | modName=$(echo ${modName} | cut -b2-) |
128 | fi |
129 | |
130 | case "${MODULES} " in |
131 | *"/${modName}.ko "*) return ;; |
132 | esac |
133 | |
134 | if echo ${builtins} | egrep -q '(^| )'${modName}'( |$)' |
135 | then |
136 | echo "module ${modName} assumed to be built in" |
137 | return |
138 | fi |
139 | |
140 | # special cases |
141 | if [[ ${modName} = i2o_block ]] |
142 | then |
143 | findmodule i2o_core |
144 | findmodule -i2o_pci |
145 | modName="i2o_block" |
146 | elif [[ ${modName} = ppa ]] |
147 | then |
148 | findmodule parport |
149 | findmodule parport_pc |
150 | modName="ppa" |
151 | elif [[ ${modName} = sbp2 ]] |
152 | then |
153 | findmodule ieee1394 |
154 | findmodule ohci1394 |
155 | modName="sbp2" |
156 | else |
157 | moduledep ${modName} |
158 | for i in ${deps} |
159 | do |
160 | findmodule ${i} |
161 | done |
162 | fi |
163 | |
164 | for modExt in o.gz o ko |
165 | do |
166 | for modDir in /lib/modules/${kernel}/updates /lib/modules/${kernel} |
167 | do |
168 | if [ -d ${modDir} ] |
169 | then |
170 | fmPath=$(findone ${modDir} -name ${modName}.${modExt}) |
171 | if [ -f "${fmPath}" ] |
172 | then |
173 | break 2 |
174 | fi |
175 | fi |
176 | done |
177 | done |
178 | |
179 | if [ ! -f ${fmPath} ] |
180 | then |
181 | if [ -n "${skiperrors}" ] |
182 | then |
183 | return |
184 | fi |
185 | |
186 | # ignore the absence of the scsi modules |
187 | for n in ${PRESCSIMODS} |
188 | do |
189 | if [[ ${n} = ${modName} ]] |
190 | then |
191 | return |
192 | fi |
193 | done |
194 | |
195 | if [ -n "${allowmissing}" ] |
196 | then |
197 | echo "WARNING: No module ${modName} found for kernel ${kernel}, continuing anyway" |
198 | return |
199 | fi |
200 | |
201 | die "No module ${modName} found for kernel ${kernel}, aborting." |
202 | fi |
203 | |
204 | # only need to add each module once |
205 | MODULES="${MODULES} ${fmPath}" |
206 | } |
207 | |
208 | install_kernel_modules() |
209 | { |
210 | local list="$1" |
211 | local module |
212 | |
213 | while read module args |
214 | do |
215 | case "${module}" in |
216 | \#*|"") continue ;; |
217 | esac |
218 | |
219 | findmodule ${module} |
220 | done << EOF |
221 | $(cat ${list}; echo) |
222 | EOF |
223 | |
224 | # create empty modules.lala file |
225 | :> ${DEST}/etc/$(basename ${list}) |
226 | |
227 | # install detected modules |
228 | echo "Coping your modules to '${DEST}/lib' ..." |
229 | for MODULE in ${MODULES} |
230 | do |
231 | if [ -x /usr/bin/strip ] && [[ ${NOSTRIP} = false ]] |
232 | then |
233 | /usr/bin/strip -g ${verbose} ${MODULE} -o ${DEST}/lib/$(basename ${MODULE}) || die |
234 | else |
235 | cp ${verbose} -a ${MODULE} ${DEST}/lib || die |
236 | fi |
237 | |
238 | # generate modules load file |
239 | echo "$(basename ${MODULE} .ko)" >> ${DEST}/etc/$(basename ${list}) || die |
240 | done |
241 | |
242 | export ALL_MODULES="${ALL_MODULES} ${MODULES}" |
243 | unset MODULES |
244 | } |
245 | |
246 | # need r00t privs |
247 | [[ $(id -u) != 0 ]] && die "you must be r00t." |
248 | |
249 | # enforce initramfs method as default |
250 | [[ -z ${IMAGE_TYPE} ]] && IMAGE_TYPE=initramfs |
251 | |
252 | while [ $# -gt 0 ]; do |
253 | case $1 in |
254 | --version) |
255 | echo "mkinitrd: version ${VERSION}" |
256 | exit 0 |
257 | ;; |
258 | |
259 | -v) verbose=-v ;; |
260 | -f) force=1 ;; |
261 | --nocompress) compress="" ;; |
262 | --image-version) img_vers=yes ;; |
263 | --allow-missing) allowmissing=yes ;; |
264 | --noresume) noresume=1 ;; |
265 | --help) usage -n ;; |
266 | --initramfs) IMAGE_TYPE=initramfs ;; |
267 | --loopback) IMAGE_TYPE=loopback ;; |
268 | --no-strip) NOSTRIP=true ;; |
269 | *) |
270 | if [ -z "${target}" ] |
271 | then |
272 | target=$1 |
273 | elif [ -z "${kernel}" ] |
274 | then |
275 | kernel=$1 |
276 | else |
277 | usage |
278 | fi |
279 | ;; |
280 | esac |
281 | |
282 | shift |
283 | done |
284 | |
285 | |
286 | # create basic filesystem layout |
287 | install -d ${DEST}/{bin,dev,etc,lib,loopfs,proc,sbin,sys,sysroot} || die |
288 | |
289 | # install busybox |
290 | echo "$(which busybox.mkinitrd)" |
291 | install -m0755 $(which busybox.mkinitrd) ${DEST}/bin/busybox || die |
292 | for i in '[' ash basename cat cut clear cp dirname echo env false find \ |
293 | grep gunzip gzip ln ls loadkmap mkdir mknod more mount mv \ |
294 | ps pwd rm rmdir sh sleep test touch true umount uname \ |
295 | xargs yes chmod chown |
296 | do |
297 | # use soft links from now on; |
298 | # hardlinks in initramfs apears to be broken on newer kernels |
299 | # -> "request module: runaway loop modprobe binfmt-0000" |
300 | # see: http://www.gossamer-threads.com/lists/linux/kernel/728042 |
301 | ln -s /bin/busybox ${DEST}/bin/${i} || die "${i}" |
302 | done |
303 | |
304 | # sbin related |
305 | for i in chroot init losetup modprobe pivot_root |
306 | do |
307 | # static links |
308 | ln ${DEST}/bin/busybox ${DEST}/sbin/${i} || die "${i}" |
309 | done |
310 | |
311 | # install run-init |
312 | echo "$(which run-init.mkinitrd)" |
313 | install -m0755 $(which run-init.mkinitrd) ${DEST}/sbin/run-init || die |
314 | |
315 | # install insmod.static |
316 | echo "$(which insmod.static)" |
317 | install -m0755 $(which insmod.static) ${DEST}/sbin/insmod || die |
318 | |
319 | # create some needed device nodes |
320 | install -o root -g root -m0754 ${MAKEDEV} ${DEST}/dev/MAKEDEV || die |
321 | ( cd ${DEST}/dev; ./MAKEDEV -v generic-nopty) |
322 | |
323 | ## install kernel modules ## |
324 | # generic needed |
325 | install_kernel_modules "${MODULES_GENERIC}" |
326 | |
327 | # usb |
328 | install_kernel_modules "${MODULES_USB}" |
329 | |
330 | # scsi |
331 | install_kernel_modules "${MODULES_SCSI}" |
332 | |
333 | # sata |
334 | install_kernel_modules "${MODULES_SATA}" |
335 | |
336 | # pata |
337 | install_kernel_modules "${MODULES_PATA}" |
338 | |
339 | # show all modules |
340 | for i in ${ALL_MODULES} |
341 | do |
342 | echo ${i} |
343 | done |
344 | |
345 | # install linuxrc |
346 | install -m0755 ${LINUXRC} ${DEST}/init || die |
347 | |
348 | # create the image |
349 | echo "Creating initrd image '${target}' ..." |
350 | if [[ ${IMAGE_TYPE} = initramfs ]] |
351 | then |
352 | (cd "${DEST}" ; find . | cpio --quiet -o -H newc | gzip -9 >${IMAGE}) |
353 | cat ${IMAGE} > ${target} || die |
354 | fi |
355 | |
356 | if [[ ${IMAGE_TYPE} = loopback ]] |
357 | then |
358 | MOUNTTMP="$(mktemp -d)" |
359 | |
360 | # create ext2 img |
361 | dd if=/dev/zero of=${IMAGE} bs=1024 count=${IMAGESIZE} &> /dev/null || die |
362 | mke2fs -m 0 -i 1024 -F ${IMAGE} &> /dev/null || die |
363 | mount -o loop ${IMAGE} ${MOUNTTMP} || die |
364 | mv ${DEST}/* ${MOUNTTMP} || die |
365 | umount ${MOUNTTMP} || die |
366 | gzip -9 ${IMAGE} || die |
367 | cat ${IMAGE}.gz > ${target} || die |
368 | [ -d ${MOUNTTMP} ] && rm -rf ${MOUNTTMP} |
369 | |
370 | # create inird dir for pivot_root |
371 | [ ! -d /initrd ] && { install -d /initrd || die; } |
372 | fi |
373 | |
374 | # clean up |
375 | [ -d ${DEST} ] && rm -rf ${DEST} |
376 | [ -f ${IMAGE} ] && rm -f ${IMAGE} |
377 | |
378 | # all went ok at this point |
379 | exit 0 |