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From 564c0c4577dfd676472f4a41798909470fee6744 Mon Sep 17 00:00:00 2001
From: Hari Bathini <hbathini@linux.vnet.ibm.com>
Date: Mon, 2 Jun 2014 16:27:37 +0530
Subject: [PATCH] lsinird: Adding option "-m|--mod" to list dracut modules in
the image
This patch adds option "-m|--mod" to lsinitrd to list dracut
modules in the image because sometimes having an option to
only list the dracut modules in the image could be handy.
Sample output:
--------------
[hbathini@localhost dracut]$ sudo ./lsinitrd.sh initramfs-3.11.10-100.fc18.x86_64.img -m
Image: initramfs-3.11.10-100.fc18.x86_64.img: 33M
========================================================================
Version: dracut-029-1.fc18.2
dracut modules:
i18n
network
ifcfg
drm
plymouth
btrfs
crypt
dm
dmraid
kernel-modules
lvm
mdraid
cifs
iscsi
nfs
resume
rootfs-block
terminfo
udev-rules
biosdevname
systemd
usrmount
base
fs-lib
shutdown
========================================================================
Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
(cherry picked from commit 05d2a14526042417a4a2b1b3d003738b51ab3df7)
---
lsinitrd.sh | 29 ++++++++++++++++++++++++-----
1 file changed, 24 insertions(+), 5 deletions(-)
diff --git a/lsinitrd.sh b/lsinitrd.sh
index b36b34e2..b086a635 100755
--- a/lsinitrd.sh
+++ b/lsinitrd.sh
@@ -27,6 +27,7 @@ usage()
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 "-k, --kver <kernel version> inspect the initramfs of <kernel version>."
echo
@@ -37,13 +38,15 @@ usage()
[[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut
sorted=0
+modules=0
declare -A filenames
unset POSIXLY_CORRECT
TEMP=$(getopt \
- -o "shf:k:" \
+ -o "shmf:k:" \
--long kver: \
--long file: \
+ --long mod \
--long help \
--long size \
-- "$@")
@@ -61,6 +64,7 @@ while (($# > 0)); do
-f|--file) filenames[${2#/}]=1; shift;;
-s|--size) sorted=1;;
-h|--help) usage; exit 0;;
+ -m|--mod) modules=1;;
--) shift;break;;
*) usage; exit 1;;
esac
@@ -119,6 +123,13 @@ extract_files()
done
}
+list_modules()
+{
+ 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()
{
echo "========================================================================"
@@ -211,10 +222,18 @@ if (( ${#filenames[@]} > 0 )); then
else
version=$($CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- 'lib/dracut/dracut-*' 'usr/lib/dracut/dracut-*' 2>/dev/null)
((ret+=$?))
- echo "$version with dracut modules:"
- $CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- '*lib/dracut/modules.txt' 2>/dev/null
- ((ret+=$?))
- list_files
+ echo "Version: $version"
+ echo
+ if [ "$modules" -eq 1 ]; then
+ list_modules
+ echo "========================================================================"
+ else
+ 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
+ list_modules
+ list_files
+ fi
fi
exit $ret