Hi, The attached patch adds to check the domain name that must not be numeric only. Signed-off-by: Saori Fukuta <fukuta.saori@xxxxxxxxxxxxxx> Thanks, Saori Fukuta. Index: virtinst/Guest.py (python-virtinst-0.100.0) =================================================================== --- Guest.py 2007-02-21 11:04:43.000000000 +0900 +++ Guest.py.num 2007-02-21 11:10:28.000000000 +0900 @@ -204,6 +204,8 @@ class Guest(object): return self._name def set_name(self, val): # FIXME: need some validation here + if re.match("^[0-9]*$", val): + raise ValueError, "Domain name must not be numeric only" if re.match("^[a-zA-Z0-9_]*$", val) == None: raise ValueError, "Domain name must be alphanumeric or _" if len(val) > 50: