Hi Sunny,

Thank you very much for the answer! Please, clarify if I got you right:
1. To make accessible volume in the uefi shell I must include EFI_FIRMWARE_VOLUME2_PROTOCOL(FvSimpleFilesystemDxe) into the BIOS.
2. To include uefi application in the BIOS image I just need to include it MdeModulePkg.
3. To run application as a boot manager it GUID should be defined in PcdBootManagerMenuFile PCD.
4. To run application from boot manager it need to use LOAD_OPTION_CATEGORY_BOOT option.

Thank you,
Sergey