Re: Deploying Yocto build images

[Stefano Babic <sbabic@denx.de>]

Hi Michael,

On 21/11/2013 19:20, Michael_E_Brown@Dell.com wrote:
> Thanks for posting this. It’s very timely for a project I am in the
> initial stages of designing. I have looked over the docs and some of the
> code, and am interested in using this.
> 
>  
> 
> I would make a couple suggestions:
> 

Thanks !

> 1)      As you mention, documentation is important. Unless this is very
> well documented, it’s difficult for other people to take up and use
> effectively, or to advocate for its use in a group

I know, and I am understand there are a lot of things that I have not
explained. Documentation is first priority.

> 2)      Progress indications: it’s going to be fairly important to build
> in some way to notify other process about the state of the update.
> A
> flexible framework for sharing progress would be very much appreciated.

There is an interface using Unix Domain Socket to communicate with the
installer. There is only a couple of implemented messages (start
installer - get status). It is quite rudimentary, but it can be extended.

This interface is also used by the AJAX interface (see in ./www) to
report the current status to the operator's browser when a downloaded is
started from network. Another use case is to output the status on a LCD:
a separate process can ask the installer and render the output for the
operator.

> There are a couple scenarios I have, but the main one is a network
> notification where one device is being updated by another. The updated
> device should be able to signal update progress to the updater device in
> a flexible fashion. I haven’t looked at the code hard enough to see how
> difficult this would be to add.

I think it is should be not very difficult. As I said, there is already
an interface that can be easy extended.

Regards,
Stefano


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