]>
Commit | Line | Data |
---|---|---|
3b403b32 | 1 | #!/bin/bash |
cc02093d HH |
2 | # |
3 | # Copyright 2005-2010 Harald Hoyer <harald@redhat.com> | |
4 | # Copyright 2005-2010 Red Hat, Inc. All rights reserved. | |
5 | # | |
6 | # This program is free software; you can redistribute it and/or modify | |
7 | # it under the terms of the GNU General Public License as published by | |
8 | # the Free Software Foundation; either version 2 of the License, or | |
9 | # (at your option) any later version. | |
10 | # | |
11 | # This program is distributed in the hope that it will be useful, | |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | # GNU General Public License for more details. | |
15 | # | |
16 | # You should have received a copy of the GNU General Public License | |
17 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | # | |
074d12c1 | 19 | |
f7bccf37 HH |
20 | usage() |
21 | { | |
dde2db3d | 22 | { |
7d9bb76a HH |
23 | echo "Usage: ${0##*/} [options] [<initramfs file> [<filename> [<filename> [...] ]]]" |
24 | echo "Usage: ${0##*/} [options] -k <kernel version>" | |
dde2db3d | 25 | echo |
7d9bb76a HH |
26 | echo "-h, --help print a help message and exit." |
27 | echo "-s, --size sort the contents of the initramfs by size." | |
05d2a145 | 28 | echo "-m, --mod list modules." |
7d9bb76a | 29 | echo "-f, --file <filename> print the contents of <filename>." |
97bbba69 HH |
30 | echo "--unpack unpack the initramfs, instead of displaying the contents." |
31 | echo "--unpackearly unpack the early microcode part of the initramfs." | |
32 | echo "-v, --verbose unpack verbosely." | |
7d9bb76a | 33 | echo "-k, --kver <kernel version> inspect the initramfs of <kernel version>." |
dde2db3d HH |
34 | echo |
35 | } >&2 | |
f7bccf37 HH |
36 | } |
37 | ||
b208aad5 HH |
38 | |
39 | [[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut | |
40 | ||
3ea5d2e2 | 41 | sorted=0 |
05d2a145 | 42 | modules=0 |
97bbba69 | 43 | unset verbose |
7d9bb76a HH |
44 | declare -A filenames |
45 | ||
46 | unset POSIXLY_CORRECT | |
47 | TEMP=$(getopt \ | |
97bbba69 | 48 | -o "vshmf:k:" \ |
7d9bb76a HH |
49 | --long kver: \ |
50 | --long file: \ | |
05d2a145 | 51 | --long mod \ |
7d9bb76a HH |
52 | --long help \ |
53 | --long size \ | |
97bbba69 HH |
54 | --long unpack \ |
55 | --long unpackearly \ | |
56 | --long verbose \ | |
7d9bb76a HH |
57 | -- "$@") |
58 | ||
59 | if (( $? != 0 )); then | |
60 | usage | |
61 | exit 1 | |
62 | fi | |
63 | ||
64 | eval set -- "$TEMP" | |
65 | ||
66 | while (($# > 0)); do | |
67 | case $1 in | |
97bbba69 HH |
68 | -k|--kver) KERNEL_VERSION="$2"; shift;; |
69 | -f|--file) filenames[${2#/}]=1; shift;; | |
70 | -s|--size) sorted=1;; | |
71 | -h|--help) usage; exit 0;; | |
72 | -m|--mod) modules=1;; | |
73 | -v|--verbose) verbose="--verbose";; | |
74 | --unpack) unpack=1;; | |
75 | --unpackearly) unpackearly=1;; | |
76 | --) shift;break;; | |
77 | *) usage; exit 1;; | |
3ea5d2e2 | 78 | esac |
7d9bb76a | 79 | shift |
3ea5d2e2 | 80 | done |
3ea5d2e2 | 81 | |
7d9bb76a | 82 | [[ $KERNEL_VERSION ]] || KERNEL_VERSION="$(uname -r)" |
dde2db3d | 83 | |
7d9bb76a | 84 | if [[ $1 ]]; then |
dde2db3d HH |
85 | image="$1" |
86 | if ! [[ -f "$image" ]]; then | |
87 | { | |
88 | echo "$image does not exist" | |
89 | echo | |
90 | } >&2 | |
91 | usage | |
92 | exit 1 | |
93 | fi | |
dde2db3d | 94 | else |
727e68d0 HH |
95 | [[ -f /etc/machine-id ]] && read MACHINE_ID < /etc/machine-id |
96 | ||
7d9bb76a HH |
97 | if [[ -d /boot/loader/entries || -L /boot/loader/entries ]] \ |
98 | && [[ $MACHINE_ID ]] \ | |
99 | && [[ -d /boot/${MACHINE_ID} || -L /boot/${MACHINE_ID} ]] ; then | |
727e68d0 HH |
100 | image="/boot/${MACHINE_ID}/${KERNEL_VERSION}/initrd" |
101 | else | |
d928724c | 102 | image="/boot/initramfs-${KERNEL_VERSION}.img" |
727e68d0 | 103 | fi |
dde2db3d HH |
104 | fi |
105 | ||
7d9bb76a HH |
106 | shift |
107 | while (($# > 0)); do | |
108 | filenames[${1#/}]=1; | |
109 | shift | |
110 | done | |
727e68d0 | 111 | |
dde2db3d HH |
112 | if ! [[ -f "$image" ]]; then |
113 | { | |
114 | echo "No <initramfs file> specified and the default image '$image' cannot be accessed!" | |
115 | echo | |
116 | } >&2 | |
117 | usage | |
118 | exit 1 | |
119 | fi | |
074d12c1 | 120 | |
d3be9275 AŻ |
121 | dracutlibdirs() { |
122 | for d in lib64/dracut lib/dracut usr/lib64/dracut usr/lib/dracut; do | |
123 | echo "$d/$1" | |
124 | done | |
125 | } | |
126 | ||
b208aad5 HH |
127 | extract_files() |
128 | { | |
129 | (( ${#filenames[@]} == 1 )) && nofileinfo=1 | |
3721635b | 130 | for f in "${!filenames[@]}"; do |
b208aad5 HH |
131 | [[ $nofileinfo ]] || echo "initramfs:/$f" |
132 | [[ $nofileinfo ]] || echo "========================================================================" | |
133 | $CAT $image | cpio --extract --verbose --quiet --to-stdout $f 2>/dev/null | |
134 | ((ret+=$?)) | |
135 | [[ $nofileinfo ]] || echo "========================================================================" | |
136 | [[ $nofileinfo ]] || echo | |
137 | done | |
138 | } | |
139 | ||
05d2a145 HB |
140 | list_modules() |
141 | { | |
142 | echo "dracut modules:" | |
d3be9275 AŻ |
143 | $CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- \ |
144 | $(dracutlibdirs modules.txt) 2>/dev/null | |
05d2a145 HB |
145 | ((ret+=$?)) |
146 | } | |
147 | ||
b208aad5 HH |
148 | list_files() |
149 | { | |
150 | echo "========================================================================" | |
151 | if [ "$sorted" -eq 1 ]; then | |
152 | $CAT "$image" | cpio --extract --verbose --quiet --list | sort -n -k5 | |
153 | else | |
154 | $CAT "$image" | cpio --extract --verbose --quiet --list | sort -k9 | |
155 | fi | |
156 | ((ret+=$?)) | |
157 | echo "========================================================================" | |
158 | } | |
159 | ||
97bbba69 HH |
160 | unpack_files() |
161 | { | |
162 | $CAT "$image" | cpio -id --quiet $verbose | |
163 | ((ret+=$?)) | |
164 | } | |
165 | ||
b208aad5 | 166 | |
97bbba69 | 167 | if (( ${#filenames[@]} <= 0 )) && [[ -z "$unpack" ]] && [[ -z "$unpackearly" ]]; then |
6d58fa27 | 168 | echo "Image: $image: $(du -h $image | while read a b || [ -n "$a" ]; do echo $a;done)" |
b208aad5 HH |
169 | echo "========================================================================" |
170 | fi | |
171 | ||
884e1cda | 172 | read -N 6 bin < "$image" |
b208aad5 HH |
173 | case $bin in |
174 | $'\x71\xc7'*|070701) | |
175 | CAT="cat --" | |
176 | is_early=$(cpio --extract --verbose --quiet --to-stdout -- 'early_cpio' < "$image" 2>/dev/null) | |
177 | if [[ "$is_early" ]]; then | |
97bbba69 HH |
178 | if [[ -n "$unpackearly" ]]; then |
179 | unpack_files | |
180 | elif (( ${#filenames[@]} > 0 )); then | |
b208aad5 HH |
181 | extract_files |
182 | else | |
183 | echo "Early CPIO image" | |
184 | list_files | |
185 | fi | |
98fd0693 HH |
186 | if [[ -d "$dracutbasedir/skipcpio" ]]; then |
187 | SKIP="$dracutbasedir/skipcpio/skipcpio" | |
188 | else | |
189 | SKIP="$dracutbasedir/skipcpio" | |
190 | fi | |
b208aad5 HH |
191 | if ! [[ -x $SKIP ]]; then |
192 | echo | |
193 | echo "'$SKIP' not found, cannot display remaining contents!" >&2 | |
194 | echo | |
195 | exit 0 | |
196 | fi | |
197 | fi | |
198 | ;; | |
199 | esac | |
200 | ||
3ce14286 HD |
201 | if [[ $SKIP ]] ; then |
202 | bin="$($SKIP "$image" | { read -N 6 bin && echo "$bin" ; })" | |
203 | else | |
204 | read -N 6 bin < "$image" | |
205 | fi | |
206 | case $bin in | |
207 | $'\x1f\x8b'*) | |
208 | CAT="zcat --" | |
209 | ;; | |
210 | BZh*) | |
211 | CAT="bzcat --" | |
212 | ;; | |
213 | $'\x71\xc7'*|070701) | |
214 | CAT="cat --" | |
215 | ;; | |
216 | $'\x02\x21'*) | |
217 | CAT="lz4 -d -c" | |
218 | ;; | |
219 | $'\x89'LZO$'\0'*) | |
220 | CAT="lzop -d -c" | |
221 | ;; | |
7dbadcc7 TPG |
222 | $'0xFD2FB528'*) |
223 | CAT="zstd -d -c" | |
224 | ;; | |
3ce14286 HD |
225 | *) |
226 | if echo "test"|xz|xzcat --single-stream >/dev/null 2>&1; then | |
227 | CAT="xzcat --single-stream --" | |
fd9f9024 | 228 | else |
3ce14286 HD |
229 | CAT="xzcat --" |
230 | fi | |
231 | ;; | |
232 | esac | |
66fe35eb | 233 | |
b208aad5 HH |
234 | skipcpio() |
235 | { | |
236 | $SKIP "$@" | $ORIG_CAT | |
237 | } | |
238 | ||
239 | if [[ $SKIP ]]; then | |
240 | ORIG_CAT="$CAT" | |
241 | CAT=skipcpio | |
242 | fi | |
243 | ||
884e1cda HH |
244 | ret=0 |
245 | ||
97bbba69 HH |
246 | if [[ -n "$unpack" ]]; then |
247 | unpack_files | |
248 | elif (( ${#filenames[@]} > 0 )); then | |
b208aad5 | 249 | extract_files |
3ea5d2e2 | 250 | else |
d3be9275 AŻ |
251 | version=$($CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- \ |
252 | $(dracutlibdirs 'dracut-*') 2>/dev/null) | |
4460416a | 253 | ((ret+=$?)) |
ae01bd18 | 254 | echo "Version: $version" |
b208aad5 | 255 | echo |
05d2a145 HB |
256 | if [ "$modules" -eq 1 ]; then |
257 | list_modules | |
258 | echo "========================================================================" | |
259 | else | |
260 | echo -n "Arguments: " | |
d3be9275 AŻ |
261 | $CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- \ |
262 | $(dracutlibdirs build-parameter.txt) 2>/dev/null | |
05d2a145 HB |
263 | echo |
264 | list_modules | |
265 | list_files | |
266 | fi | |
3ea5d2e2 | 267 | fi |
4460416a | 268 | |
884e1cda | 269 | exit $ret |