>
>
> Update ... feeling like I'm losing my mind now.
>
> fw_env.config must be sensitive to spaces or tabs or something.
>
> I messed around with it some more and it magically started working with my
> imx8mm-evk board with fw_env.config containing:
>
> /dev/mmcblk1  0x400000    0x1000
>
> I don't know why that didn't work before ... I tried all kinds of things
> to get this to work and really can't explain why it just started working.
> To test, I used fw_setenv to set a variable and rebooted and stopped in
> u-boot and did printenv and sure enough the variable I set is there.
>
> Regards,
>
> Brian
>

So I think I figured out what was going on.  I flashed sdcard with fresh
Yocto build.  Apparently the default u-boot environment is in ram and not
in the eMMC until you stop in u-boot and do a saveenv ... then when you
boot into Linux fw_printenv works.  Prior to doing that, fw_printenv will
return the error I previously mentioned.

Hopefully this will help the next person thinking they are losing their
mind messing with creating a fw_env.config file.

Regards,

Brian