+ echo >&2 "Usage: $0 [OPTIONS] -o target.iso source1.iso [source2.iso ...]"
+ echo >&2 "
+Options:
+ -b Boot Params Additional boot parameters passed to grml2usb
+ -c Directory Copy files from directory to generated iso
+ -f Force overwrite of existing target.iso
+ -r BootParam Remove specified boot params.
+ Could be specfied multiple times.
+"