lipnsa hook: take lipstick path from first parameter

initrd_hooks/lipnsa.sh → initrd_hooks/lipnsa.hook.sh

@@ -2,12 +2,16 @@
 # lipnsa.sh -- collecting your data for a better world
 # Lars Beckers, larsb@fsmpi.rwth-aachen.de, September 2014
 
-LIPSTICK="/cdrom"
+LIPSTICK="/root/cdrom"
+if [ -n "$1" ] && [ ! "$1" == "--help" ]; then
+  LIPSTICK="$1"
+fi
+
 LIPSTATS="${LIPSTICK}/lipstats"
 TARGET="/root"
 LOGFUNCTIONSSOURCE="/scripts/casper-functions"
 
-if [ $# -gt 0 ]; then
+if [ "$1" == "--help" ]; then
 	echo "collects system information, i.e. hardware and what the kernel thinks about it"
 	echo "called as liphook before leaving initramfs"
 	echo "usage: lipnsa.sh"