131 lines
4.1 KiB
Diff
131 lines
4.1 KiB
Diff
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From 97bbba6938fc22605026b4cff3c5cc524c7bdf38 Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Thu, 17 Mar 2016 14:45:24 +0100
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Subject: [PATCH] lsinitrd: add "--unpack" to lsinitrd
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also "--unpackearly" and "--verbose"
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---
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lsinitrd.1.asc | 9 +++++++++
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lsinitrd.sh | 43 ++++++++++++++++++++++++++++++++-----------
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2 files changed, 41 insertions(+), 11 deletions(-)
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diff --git a/lsinitrd.1.asc b/lsinitrd.1.asc
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index 4293910..b6a704c 100644
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--- a/lsinitrd.1.asc
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+++ b/lsinitrd.1.asc
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@@ -34,6 +34,15 @@ OPTIONS
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**-k, --kver** _<kernel version>_::
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inspect the initramfs of <kernel version>.
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+**--unpack**::
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+ unpack the initramfs to the current directory, instead of displaying the contents.
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+
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+**--unpackearly**::
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+ unpack the early microcode initramfs to the current directory, instead of displaying the contents.
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+
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+**-v, --verbose**::
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+ unpack verbosely
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+
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AVAILABILITY
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------------
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The lsinitrd command is part of the dracut package and is available from
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diff --git a/lsinitrd.sh b/lsinitrd.sh
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index 441fb92..224b9c1 100755
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--- a/lsinitrd.sh
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+++ b/lsinitrd.sh
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@@ -27,6 +27,9 @@ usage()
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echo "-s, --size sort the contents of the initramfs by size."
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echo "-m, --mod list modules."
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echo "-f, --file <filename> print the contents of <filename>."
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+ echo "--unpack unpack the initramfs, instead of displaying the contents."
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+ echo "--unpackearly unpack the early microcode part of the initramfs."
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+ echo "-v, --verbose unpack verbosely."
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echo "-k, --kver <kernel version> inspect the initramfs of <kernel version>."
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echo
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} >&2
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@@ -37,16 +40,21 @@ usage()
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sorted=0
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modules=0
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+unpack=0
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+unset verbose
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declare -A filenames
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unset POSIXLY_CORRECT
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TEMP=$(getopt \
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- -o "shmf:k:" \
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+ -o "vshmf:k:" \
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--long kver: \
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--long file: \
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--long mod \
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--long help \
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--long size \
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+ --long unpack \
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+ --long unpackearly \
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+ --long verbose \
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-- "$@")
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if (( $? != 0 )); then
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@@ -58,13 +66,16 @@ eval set -- "$TEMP"
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while (($# > 0)); do
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case $1 in
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- -k|--kver) KERNEL_VERSION="$2"; shift;;
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- -f|--file) filenames[${2#/}]=1; shift;;
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- -s|--size) sorted=1;;
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- -h|--help) usage; exit 0;;
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- -m|--mod) modules=1;;
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- --) shift;break;;
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- *) usage; exit 1;;
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+ -k|--kver) KERNEL_VERSION="$2"; shift;;
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+ -f|--file) filenames[${2#/}]=1; shift;;
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+ -s|--size) sorted=1;;
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+ -h|--help) usage; exit 0;;
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+ -m|--mod) modules=1;;
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+ -v|--verbose) verbose="--verbose";;
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+ --unpack) unpack=1;;
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+ --unpackearly) unpackearly=1;;
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+ --) shift;break;;
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+ *) usage; exit 1;;
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esac
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shift
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done
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@@ -147,8 +158,14 @@ list_files()
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echo "========================================================================"
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}
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+unpack_files()
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+{
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+ $CAT "$image" | cpio -id --quiet $verbose
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+ ((ret+=$?))
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+}
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+
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-if (( ${#filenames[@]} <= 0 )); then
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+if (( ${#filenames[@]} <= 0 )) && [[ -z "$unpack" ]] && [[ -z "$unpackearly" ]]; then
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echo "Image: $image: $(du -h $image | while read a b || [ -n "$a" ]; do echo $a;done)"
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echo "========================================================================"
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fi
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@@ -159,7 +176,9 @@ case $bin in
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CAT="cat --"
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is_early=$(cpio --extract --verbose --quiet --to-stdout -- 'early_cpio' < "$image" 2>/dev/null)
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if [[ "$is_early" ]]; then
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- if (( ${#filenames[@]} > 0 )); then
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+ if [[ -n "$unpackearly" ]]; then
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+ unpack_files
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+ elif (( ${#filenames[@]} > 0 )); then
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extract_files
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else
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echo "Early CPIO image"
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@@ -218,7 +237,9 @@ fi
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ret=0
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-if (( ${#filenames[@]} > 0 )); then
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+if [[ -n "$unpack" ]]; then
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+ unpack_files
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+elif (( ${#filenames[@]} > 0 )); then
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extract_files
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else
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version=$($CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- \
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