From 3ea5d2e28fe0e5790594d036c430dbad4e903186 Mon Sep 17 00:00:00 2001

From: Cong Wang <xiyou.wangcong@gmail.com>

Date: Tue, 10 Jan 2012 22:45:45 +0800

Subject: [PATCH] lsinitrd: add '-s' option to sort the initrd output by file

 size

This is useful to analyse which files consume the space of initrd.

Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>

---

 lsinitrd |   18 ++++++++++++++++--

 1 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/lsinitrd b/lsinitrd

index 7da9f61..ad7ece9 100755

--- a/lsinitrd

+++ b/lsinitrd

@@ -19,7 +19,17 @@

 # along with this program.  If not, see <http://www.gnu.org/licenses/>.

 #

-[[ $# -le 2 ]] || { echo "Usage: $(basename $0) [<initramfs file> [<filename>]]" ; exit 1 ; }

+[[ $# -le 2 ]] || { echo "Usage: $(basename $0) [-s] [<initramfs file> [<filename>]]" ; exit 1 ; }

+

+sorted=0

+while getopts "s" opt; do

+    case $opt in

+        s)  sorted=1;;

+        \?) exit 1;;

+    esac

+done

+shift $((OPTIND-1))

+

 image="${1:-/boot/initramfs-$(uname -r).img}"

 [[ -f "$image" ]]    || { echo "$image does not exist" ; exit 1 ; }

@@ -45,5 +55,9 @@ echo "$image: $(du -h $image | awk '{print $1}')"

 echo "========================================================================"

 $CAT "$image" | cpio --extract --verbose --quiet --to-stdout 'lib/dracut/dracut-*' 2>/dev/null

 echo "========================================================================"

-$CAT "$image" | cpio --extract --verbose --quiet --list

+if [ "$sorted" -eq 1 ]; then

+    $CAT "$image" | cpio --extract --verbose --quiet --list | sort -n -k5

+else

+    $CAT "$image" | cpio --extract --verbose --quiet --list

+fi

 echo "========================================================================"