'See if all preqs for network booting are valid.  This returns
a list of strings containing instructions on things to correct.
An empty list means there is nothing to correct, but that still
doesn\'t mean there are configuration errors.  This is mainly useful
for human admins, who may, for instance, forget to properly set up
their TFTP servers for PXE, etc.'

def check(self, logger=None):

    self.log('check')
    check = action_check.CobblerCheck(self._collection_mgr, logger=logger)
    return check.run()
