Re: Barebox stops working if /env/boot/mmc is removed

[Patrick Boettcher <patrick.boettcher@posteo.de>]

On Wed, 7 Nov 2018 08:36:21 +0100
Sascha Hauer <s.hauer@pengutronix.de> wrote:

> On Tue, Nov 06, 2018 at 02:11:26PM +0100, Patrick Boettcher wrote:
> > On Tue, 6 Nov 2018 09:29:14 +0100
> > Sascha Hauer <s.hauer@pengutronix.de> wrote:  
> > > > The issue seems to have come from a file which was maybe in a
> > > > previous default environment and has been modified in the
> > > > user-environment and was now remove in the default-env or
> > > > overwritten or whatnot.
> > > > 
> > > > It seems that I fixed it by erasing
> > > > the /dev/barebox-environment-partition after flashing the new
> > > > barebox-version.
> > > > 
> > > > For the moment this is not an issue for my system/application.
> > > > It's a bit scary though.    
> > > 
> > > What does "Stops working" mean? Doesn't start at all? Doesn't
> > > start kernel? Your description is a bit vague.  
> > 
> > Stops working means no more output on the serial port after having
> > barebox_updated the image and issued 'reset'. Hardware reset did
> > not do anything.  
> 
> Console output starts before the environment is looked at, so this
> shouldn't be the root cause. I didn't understand where you erased the
> file. Did you erase it in your build, so in the default environment,
> or did you erase it during runtime from the saved environment? For the
> former it could be that the object positions in the binary moved to
> some unlucky place. 

This must have been my case. I deleted a file from the default
environment within my build which was in a previous image.

As I didn't really knew what's going on, I don't remember exactly what
I did.

But I'm quite sure that erasing the barbox-environment-partition fixed
the problem. 

I haven't seen it since then, no matter how much I changed the
built-in-env.

Thanks for your feedback and explanation, I'll keep my eyes open in
case the problem reappears.

regards,
--
Patrick.

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