[PATCH v2] barebox update: add note after successful update

[Eric Bénard]

Hi Stefan,

Le Fri, 5 Jun 2015 09:51:25 +0200,
Stefan Christ <s.christ at phytec.de> a écrit :

> Some users of the barebox_update command forget to erase the external
> barebox environment after updating the barebox. Using an old barebox
> environment leads to various problems if there were major changes.
> 
> So add a gentle reminder after the successful update.
> 
> Signed-off-by: Stefan Christ <s.christ at phytec.de>
> ---
> v2: Add explanation howto to clean up the environment
> ---
>  common/bbu.c | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/common/bbu.c b/common/bbu.c
> index 7fb154a..d23b864 100644
> --- a/common/bbu.c
> +++ b/common/bbu.c
> @@ -113,8 +113,15 @@ int barebox_update(struct bbu_data *data)
>  	if (ret == -EINTR)
>  		printf("update aborted\n");
>  
> -	if (!ret)
> +	if (!ret) {
>  		printf("update succeeded\n");
> +		if (IS_ENABLED(CONFIG_ENV_HANDLING)) {
> +			printf("You maybe want to erase the barebox environment now.\n");
> +			printf("After booting the flashed barebox you can use\n");
> +			printf("    $ saveenv -z; loadenv\n");
> +			printf("to do that.\n");
> +		}
> +	}

maybe loadenv -d; saveenv is less invasive than saveenv -z in order to
preserve nv ?

Eric