0e22b224___Configuring_the_Boot_Manager_ubmenu_keywords_in_refind_conf_Possible_parameters
[Token] loader [Explanation] Sets the filename for the boot loader, as described in Table 2. Note that the loader is read from whatever filesystem is specified by the main stanza's volume option, provided that option precedes the submenu definition. [Possible parameters] 
filename
n a m e f o r t h e e n t r y
f i l e n a m e
o n o r o f f
o p t i o n s p a s s e d t o t h e b o o t l o a d e r
n o n e
The rEFInd Boot Manager: Configuring the Boot Manager
Possible parameters