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
option "pad" p "Pad the image to this size if smaller (in MiB)" int typestr="size (in MiB)" optional
+option "align-rootfs" - "Align the rootfs start to erase block size" flag off