option "rsa-signature" r "String for RSA Signature section." string optional
option "second-image-flag" - "Dual Image Flag (2=not-specified)." values="0", "1", "2" default="2" typestr="flag-value" optional
option "inactive" - "Inactive Flag (2=not-specified)." values="0", "1", "2" default="2" typestr="flag-value" optional
-option "reserved1" - "String for first reserved section." string optional
option "reserved2" - "String for second reserved section." string optional
option "kernel-file-has-header" - "Indicates that the kernel file includes the kernel header with correct load address and entry point, so no changes are needed" flag off