Why all the non-generic "ext2load"'s? use just "load", then it'll work with both fat, ext2/3/4 & btrfs...
Regards,
the pxe code requires you specify the filesystem for the sysboot command, and as /boot needs to be ext ive kept it consistent. Ive also not narrowed down the option to enable load to work, in my testing it did not work.
having said that I just found CONFIG_CMD_FS_GENERIC which is not set, though cmd_pxe.c will need some patching to not require specifying a filesystem
I can see fixing cmd_pxe.c could be done later. But as just a generic uEnv.txt user, I do like the idea of having a consistent variable naming setup for a bunch of boards. So i can easily convert my stuff to this setup, but the ext2load vs a generic load was the one big issue it was missing.
Regards,