Uboot implements the simple file protocol of ext4 file system, already. However, the driver is embedded in Uboot. Is it possible to build a standalone ext4 file system driver for UEFI, in the format of efi, just like the helloworld.efi. So I can use the UEFI shell command: load to load the driver and access a ext4 partition.
Thanks Best Regards Feng Libo
