#!/bin/bash
-# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
-# ex: ts=8 sw=4 sts=4 et filetype=sh
#
# Copyright 2005-2010 Harald Hoyer <harald@redhat.com>
# Copyright 2005-2010 Red Hat, Inc. All rights reserved.
echo
echo "-h, --help print a help message and exit."
echo "-s, --size sort the contents of the initramfs by size."
+ echo "-m, --mod list modules."
echo "-f, --file <filename> print the contents of <filename>."
+ echo "--unpack unpack the initramfs, instead of displaying the contents."
+ echo " If optional filenames are given, will only unpack specified files,"
+ echo " else the whole image will be unpacked. Won't unpack anything from early cpio part."
+ echo "--unpackearly unpack the early microcode part of the initramfs."
+ echo " Same as --unpack, but only unpack files from early cpio part."
+ echo "-v, --verbose unpack verbosely."
echo "-k, --kver <kernel version> inspect the initramfs of <kernel version>."
echo
} >&2
[[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut
sorted=0
+modules=0
+unset verbose
declare -A filenames
unset POSIXLY_CORRECT
TEMP=$(getopt \
- -o "shf:k:" \
+ -o "vshmf:k:" \
--long kver: \
--long file: \
+ --long mod \
--long help \
--long size \
+ --long unpack \
+ --long unpackearly \
+ --long verbose \
-- "$@")
if (( $? != 0 )); then
while (($# > 0)); do
case $1 in
- -k|--kver) KERNEL_VERSION="$2"; shift;;
- -f|--file) filenames[${2#/}]=1; shift;;
- -s|--size) sorted=1;;
- -h|--help) usage; exit 0;;
- --) shift;break;;
- *) usage; exit 1;;
+ -k|--kver) KERNEL_VERSION="$2"; shift;;
+ -f|--file) filenames[${2#/}]=1; shift;;
+ -s|--size) sorted=1;;
+ -h|--help) usage; exit 0;;
+ -m|--mod) modules=1;;
+ -v|--verbose) verbose="--verbose";;
+ --unpack) unpack=1;;
+ --unpackearly) unpackearly=1;;
+ --) shift;break;;
+ *) usage; exit 1;;
esac
shift
done
exit 1
fi
+dracutlibdirs() {
+ for d in lib64/dracut lib/dracut usr/lib64/dracut usr/lib/dracut; do
+ echo "$d/$1"
+ done
+}
+
extract_files()
{
(( ${#filenames[@]} == 1 )) && nofileinfo=1
- for f in ${!filenames[@]}; do
+ for f in "${!filenames[@]}"; do
[[ $nofileinfo ]] || echo "initramfs:/$f"
[[ $nofileinfo ]] || echo "========================================================================"
- $CAT $image | cpio --extract --verbose --quiet --to-stdout $f 2>/dev/null
+ $CAT "$image" 2>/dev/null | cpio --extract --verbose --quiet --to-stdout "$f" 2>/dev/null
((ret+=$?))
[[ $nofileinfo ]] || echo "========================================================================"
[[ $nofileinfo ]] || echo
done
}
+list_modules()
+{
+ echo "dracut modules:"
+ $CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- \
+ $(dracutlibdirs modules.txt) 2>/dev/null
+ ((ret+=$?))
+}
+
list_files()
{
echo "========================================================================"
if [ "$sorted" -eq 1 ]; then
- $CAT "$image" | cpio --extract --verbose --quiet --list | sort -n -k5
+ $CAT "$image" 2>/dev/null | cpio --extract --verbose --quiet --list | sort -n -k5
else
- $CAT "$image" | cpio --extract --verbose --quiet --list | sort -k9
+ $CAT "$image" 2>/dev/null | cpio --extract --verbose --quiet --list | sort -k9
fi
((ret+=$?))
echo "========================================================================"
}
+unpack_files()
+{
+ if (( ${#filenames[@]} > 0 )); then
+ for f in "${!filenames[@]}"; do
+ $CAT "$image" 2>/dev/null | cpio -id --quiet $verbose $f
+ ((ret+=$?))
+ done
+ else
+ $CAT "$image" 2>/dev/null | cpio -id --quiet $verbose
+ ((ret+=$?))
+ fi
+}
-if (( ${#filenames[@]} <= 0 )); then
- echo "Image: $image: $(du -h $image | while read a b; do echo $a;done)"
+
+if (( ${#filenames[@]} <= 0 )) && [[ -z "$unpack" ]] && [[ -z "$unpackearly" ]]; then
+ echo "Image: $image: $(du -h $image | while read a b || [ -n "$a" ]; do echo $a;done)"
echo "========================================================================"
fi
CAT="cat --"
is_early=$(cpio --extract --verbose --quiet --to-stdout -- 'early_cpio' < "$image" 2>/dev/null)
if [[ "$is_early" ]]; then
- if (( ${#filenames[@]} > 0 )); then
+ if [[ -n "$unpack" ]]; then
+ # should use --unpackearly for early CPIO
+ :
+ elif [[ -n "$unpackearly" ]]; then
+ unpack_files
+ elif (( ${#filenames[@]} > 0 )); then
extract_files
else
echo "Early CPIO image"
list_files
fi
- SKIP="$dracutbasedir/skipcpio"
+ if [[ -d "$dracutbasedir/skipcpio" ]]; then
+ SKIP="$dracutbasedir/skipcpio/skipcpio"
+ else
+ SKIP="$dracutbasedir/skipcpio"
+ fi
if ! [[ -x $SKIP ]]; then
echo
echo "'$SKIP' not found, cannot display remaining contents!" >&2
;;
esac
-if [[ $SKIP ]]; then
- read -N 6 bin < <($SKIP "$image")
+if [[ $SKIP ]] ; then
+ bin="$($SKIP "$image" | { read -N 6 bin && echo "$bin" ; })"
+else
+ read -N 6 bin < "$image"
fi
-
case $bin in
$'\x1f\x8b'*)
- CAT="zcat --";;
+ CAT="zcat --"
+ ;;
BZh*)
- CAT="bzcat --";;
+ CAT="bzcat --"
+ ;;
$'\x71\xc7'*|070701)
CAT="cat --"
;;
$'\x02\x21'*)
- CAT="lz4 -d -c";;
+ CAT="lz4 -d -c"
+ ;;
+ $'\x89'LZO$'\0'*)
+ CAT="lzop -d -c"
+ ;;
+ $'\x28\xB5\x2F\xFD'*)
+ CAT="zstd -d -c"
+ ;;
*)
- CAT="xzcat --";
if echo "test"|xz|xzcat --single-stream >/dev/null 2>&1; then
CAT="xzcat --single-stream --"
+ else
+ CAT="xzcat --"
fi
;;
esac
CAT=skipcpio
fi
+if (( ${#filenames[@]} > 1 )); then
+ TMPFILE="$(mktemp -t --suffix=.cpio lsinitrd.XXXXXX)"
+ $CAT "$image" 2>/dev/null > $TMPFILE
+ trap "rm -f '$TMPFILE'" EXIT
+ pre_decompress()
+ {
+ cat $TMPFILE
+ }
+ CAT=pre_decompress
+fi
+
ret=0
-if (( ${#filenames[@]} > 0 )); then
+if [[ -n "$unpack" ]]; then
+ unpack_files
+elif (( ${#filenames[@]} > 0 )); then
extract_files
else
- version=$($CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- 'lib/dracut/dracut-*' 'usr/lib/dracut/dracut-*' 2>/dev/null)
+ version=$($CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- \
+ $(dracutlibdirs 'dracut-*') 2>/dev/null)
((ret+=$?))
echo "Version: $version"
echo
- echo -n "Arguments: "
- $CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- 'lib/dracut/build-parameter.txt' 'usr/lib/dracut/build-parameter.txt' 2>/dev/null
- echo
- echo "dracut modules:"
- $CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- 'lib/dracut/modules.txt' 'usr/lib/dracut/modules.txt' 2>/dev/null
- ((ret+=$?))
- list_files
+ if [ "$modules" -eq 1 ]; then
+ list_modules
+ echo "========================================================================"
+ else
+ echo -n "Arguments: "
+ $CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- \
+ $(dracutlibdirs build-parameter.txt) 2>/dev/null
+ echo
+ list_modules
+ list_files
+ fi
fi
exit $ret
projects / thirdparty / dracut.git / blobdiff