X-Git-Url: https://git.grml.org/?p=grml-live.git;a=blobdiff_plain;f=grml-live;h=0aed77ed9a7cd0624ecd61715068fd8f84a34956;hp=c443cd1f46096d1c07516dbb67fba805cdb1f165;hb=a694752a7a33c8f35c55d8fcfb6b5635811e8cd5;hpb=feacdba45daf4b824c93171bd9d95fbeed75121e

diff --git a/grml-live b/grml-live
index c443cd1..0aed77e 100755
--- a/grml-live
+++ b/grml-live
@@ -12,6 +12,9 @@
 export LANG=C
 export LC_ALL=C
 
+# avoid leaking into chroots
+unset TMPDIR
+
 # define function getfilesize before "set -e"
 if stat --help >/dev/null 2>&1; then
   getfilesize='stat -c %s'  # GNU stat
@@ -330,10 +333,15 @@ while getopts "a:C:c:d:D:e:g:i:I:o:r:s:t:U:v:AbBFhnNqQuVz" opt; do
     U) CHOWN_USER="$OPTARG" ;;
     V) VERBOSE="-v" ;;
     z) SQUASHFS_ZLIB=1 ;;
-    ?) echo "invalid option -$OPTARG" >&2; bailout 1 ;;
+    ?) echo "invalid option -$OPTARG" >&2; usage; bailout 1 ;;
   esac
 done
 shift $(($OPTIND - 1))  # set ARGV to the first not parsed commandline parameter
+
+if [ -n "$1" ] ; then
+  echo "Error: unknown argument '$1' in options. Exiting to avoid possible data loss." >&2
+  bailout 1
+fi
 # }}}
 
 # read local (non-packaged) configuration {{{