2 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
3 # ex: ts=8 sw=4 sts=4 et filetype=sh
5 # Copyright 2005-2010 Harald Hoyer <harald@redhat.com>
6 # Copyright 2005-2010 Red Hat, Inc. All rights reserved.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
25 echo "Usage: ${0##*/} [-s] [<initramfs file> [<filename>]]"
27 echo "-h, --help print a help message and exit."
28 echo "-s, --size sort the contents of the initramfs by size."
33 [[ $# -le 2 ]] || { usage ; exit 1 ; }
36 while getopts "s" opt; do
45 KERNEL_VERSION="$(uname -r)"
49 if ! [[ -f "$image" ]]; then
51 echo "$image does not exist"
58 [[ -f /etc/machine-id ]] && read MACHINE_ID < /etc/machine-id
60 if [[ $MACHINE_ID ]] && [[ -d /boot/${MACHINE_ID} || -L /boot/${MACHINE_ID} ]] ; then
61 image="/boot/${MACHINE_ID}/${KERNEL_VERSION}/initrd"
63 image="/boot/initramfs-${KERNEL_VERSION}.img"
68 if ! [[ -f "$image" ]]; then
70 echo "No <initramfs file> specified and the default image '$image' cannot be accessed!"
78 FILE_T=$(file --dereference "$image")
80 if echo "test"|xz|xz -dc --single-stream >/dev/null 2>&1; then
81 XZ_SINGLE_STREAM="--single-stream"
84 if [[ "$FILE_T" =~ :\ gzip\ compressed\ data ]]; then
86 elif [[ "$FILE_T" =~ :\ xz\ compressed\ data ]]; then
87 CAT="xzcat $XZ_SINGLE_STREAM"
88 elif [[ "$FILE_T" =~ :\ XZ\ compressed\ data ]]; then
89 CAT="xzcat $XZ_SINGLE_STREAM"
90 elif [[ "$FILE_T" =~ :\ LZMA ]]; then
91 CAT="xzcat $XZ_SINGLE_STREAM"
92 elif [[ "$FILE_T" =~ :\ data ]]; then
93 CAT="xzcat $XZ_SINGLE_STREAM"
96 if [[ $# -eq 2 ]]; then
97 $CAT $image | cpio --extract --verbose --quiet --to-stdout ${2#/} 2>/dev/null
101 echo "$image: $(du -h $image | while read a b; do echo $a;done)"
102 echo "========================================================================"
103 $CAT "$image" | cpio --extract --verbose --quiet --to-stdout '*lib/dracut/dracut-*' 2>/dev/null
104 echo "========================================================================"
105 if [ "$sorted" -eq 1 ]; then
106 $CAT "$image" | cpio --extract --verbose --quiet --list | sort -n -k5
108 $CAT "$image" | cpio --extract --verbose --quiet --list | sort -k9
110 echo "========================================================================"