3 # Copyright 2005-2010 Harald Hoyer <harald@redhat.com>
4 # Copyright 2005-2010 Red Hat, Inc. All rights reserved.
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.
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.
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/>.
23 echo "Usage: ${0##*/} [options] [<initramfs file> [<filename> [<filename> [...] ]]]"
24 echo "Usage: ${0##*/} [options] -k <kernel version>"
26 echo "-h, --help print a help message and exit."
27 echo "-s, --size sort the contents of the initramfs by size."
28 echo "-m, --mod list modules."
29 echo "-f, --file <filename> print the contents of <filename>."
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."
33 echo "-k, --kver <kernel version> inspect the initramfs of <kernel version>."
39 [[ $dracutbasedir ]] || dracutbasedir
=/usr
/lib
/dracut
59 if (( $?
!= 0 )); then
68 -k|
--kver) KERNEL_VERSION
="$2"; shift;;
69 -f|
--file) filenames
[${2#/}]=1; shift;;
71 -h|
--help) usage
; exit 0;;
73 -v|
--verbose) verbose
="--verbose";;
75 --unpackearly) unpackearly
=1;;
82 [[ $KERNEL_VERSION ]] || KERNEL_VERSION
="$(uname -r)"
86 if ! [[ -f "$image" ]]; then
88 echo "$image does not exist"
95 [[ -f /etc
/machine-id
]] && read MACHINE_ID
< /etc
/machine-id
97 if [[ -d /boot
/loader
/entries ||
-L /boot
/loader
/entries
]] \
98 && [[ $MACHINE_ID ]] \
99 && [[ -d /boot
/${MACHINE_ID} ||
-L /boot
/${MACHINE_ID} ]] ; then
100 image
="/boot/${MACHINE_ID}/${KERNEL_VERSION}/initrd"
102 image
="/boot/initramfs-${KERNEL_VERSION}.img"
112 if ! [[ -f "$image" ]]; then
114 echo "No <initramfs file> specified and the default image '$image' cannot be accessed!"
122 for d
in lib64
/dracut lib
/dracut usr
/lib64
/dracut usr
/lib
/dracut
; do
129 (( ${#filenames[@]} == 1 )) && nofileinfo
=1
130 for f
in "${!filenames[@]}"; do
131 [[ $nofileinfo ]] ||
echo "initramfs:/$f"
132 [[ $nofileinfo ]] ||
echo "========================================================================"
133 $CAT $image |
cpio --extract --verbose --quiet --to-stdout $f 2>/dev
/null
135 [[ $nofileinfo ]] ||
echo "========================================================================"
136 [[ $nofileinfo ]] ||
echo
142 echo "dracut modules:"
143 $CAT "$image" |
cpio --extract --verbose --quiet --to-stdout -- \
144 $
(dracutlibdirs modules.txt
) 2>/dev
/null
150 echo "========================================================================"
151 if [ "$sorted" -eq 1 ]; then
152 $CAT "$image" |
cpio --extract --verbose --quiet --list |
sort -n -k5
154 $CAT "$image" |
cpio --extract --verbose --quiet --list |
sort -k9
157 echo "========================================================================"
162 $CAT "$image" |
cpio -id --quiet $verbose
167 if (( ${#filenames[@]} <= 0 )) && [[ -z "$unpack" ]] && [[ -z "$unpackearly" ]]; then
168 echo "Image: $image: $(du -h $image | while read a b || [ -n "$a" ]; do echo $a;done)"
169 echo "========================================================================"
172 read -N 6 bin
< "$image"
176 is_early
=$
(cpio --extract --verbose --quiet --to-stdout -- 'early_cpio' < "$image" 2>/dev
/null
)
177 if [[ "$is_early" ]]; then
178 if [[ -n "$unpackearly" ]]; then
180 elif (( ${#filenames[@]} > 0 )); then
183 echo "Early CPIO image"
186 if [[ -d "$dracutbasedir/skipcpio" ]]; then
187 SKIP
="$dracutbasedir/skipcpio/skipcpio"
189 SKIP
="$dracutbasedir/skipcpio"
191 if ! [[ -x $SKIP ]]; then
193 echo "'$SKIP' not found, cannot display remaining contents!" >&2
201 if [[ $SKIP ]] ; then
202 bin
="$($SKIP "$image" | { read -N 6 bin && echo "$bin" ; })"
204 read -N 6 bin
< "$image"
226 if echo "test"|xz|xzcat
--single-stream >/dev
/null
2>&1; then
227 CAT
="xzcat --single-stream --"
236 $SKIP "$@" |
$ORIG_CAT
246 if [[ -n "$unpack" ]]; then
248 elif (( ${#filenames[@]} > 0 )); then
251 version
=$
($CAT "$image" |
cpio --extract --verbose --quiet --to-stdout -- \
252 $
(dracutlibdirs
'dracut-*') 2>/dev
/null
)
254 echo "Version: $version"
256 if [ "$modules" -eq 1 ]; then
258 echo "========================================================================"
260 echo -n "Arguments: "
261 $CAT "$image" |
cpio --extract --verbose --quiet --to-stdout -- \
262 $
(dracutlibdirs build-parameter.txt
) 2>/dev
/null