As they are examples, these are licensed so they can be freely copied
and used without any restrictions.
-Tip: To enable verbose messages, set environment variable
+Tips:
+
+(1) To enable verbose messages, set environment variable
LIBGUESTFS_DEBUG=1
+
+(2) If you haven't installed libguestfs, run the examples like this:
+LIBGUESTFS_PATH=appliance examples/to-xml
+(the path should point to the directory containing vmlinuz.* and
+initramfs.* files).