#!/bin/bash

REVISION=`kernel-config list | grep \*$ | cut -d" " -f6 | cut -d- -f2-8`
[ "" == "$REVISION" ] && echo "No appropriate kernel revision found ;-(" && exit -1

SOURCES=linux-$REVISION
[ "" == "$SOURCES" ] && echo "No appropriate kernel sources found ;-(" && exit -1

# rm old modules
cd /lib/modules && rm -rf `ls | grep -v "^$REVISION$"`

# rm old kernel revisions
mount -o remount,rw /boot
cd /boot && rm -f `ls System.map-* config-* vmlinuz-* 2>/dev/null | grep -v "$REVISION$"`
mount -o remount,ro /boot

# rm old sources
cd /usr/src && rm -rf `find -maxdepth 1 -name "linux-*" -type d | grep -v "$SOURCES$"`

exit 0