[U-Boot-Users] auto-save environment if using default environment?

["Markus Klotzbücher" <mk@denx.de>]

w.wegner at astro-kom.de writes:

> I just had the problem of fw_{print,save}env not being able to access
> the environment because I was using the default (builtin) environment
> after flashing U-Boot.
> I wonder if I am the only one having this problem, or is it common
> practice to flash the environment together with U-Boot during production?
>
> I just made this small patch to auto-save the environment if it is
> not found in flash but am wondering if
> - I missed something and such a possibility does already exist?
>   (I could not find a possibility to check from the command-line if
>    the current environment comes from flash or is the built-in default
>    environment, else it would be easier to make a script check and
>    call saveenv before booting.)

AFAIK there is currently no way to check this from the U-Boot
shell. Nevertheless I think that would be the way to go instead of
hard-coding this. How about setting an environment variable like
"env_default" if the default environment is used? That way scripts can
be used to run saveenv but could also do more complex initialization.

Best regards

Markus Klotzbuecher

--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office at denx.de