Open Embedded and Gumstix

Open Embedded and Gumstix

[Chinab]

Hi All!

I am using a Gumstix and have set up Open Embedded+Bitbake on my local linux
machine for cross debugging C code using eclipse IDE.

I am interested for having all my lab computers (all ubuntu machines as well) to
be able to do the same but I dont want to bitbake and install each and
everything again and again. Would it be possible for me to simple make an SDK
and install it on all the other computers? What would be part of the SDK? As in,
can I simply transfer the overo-oe folder to the rest of the computers and will
it work?

Thanks for your help.

Take care and enjoy the day!

Re: Open Embedded and Gumstix

[Aeschbacher, Fabrice]

Hi,

> [mailto:openembedded-devel-bounces@lists.openembedded.org] Im 
> Auftrag von Chinab
> I am using a Gumstix and have set up Open Embedded+Bitbake on 
> my local linux
> machine for cross debugging C code using eclipse IDE.
> 
> I am interested for having all my lab computers (all ubuntu 
> machines as well) to
> be able to do the same but I dont want to bitbake and install each and
> everything again and again. Would it be possible for me to 
> simple make an SDK
> and install it on all the other computers? What would be part 
> of the SDK? As in,
> can I simply transfer the overo-oe folder to the rest of the 
> computers and will it work?

We do this kind of thing by using 'packaged-staging':

- compile the toolchain once on one computer (e.g. 'bitbake meta-toolchain')
- copy the resulting staging dir ( ${PSTAGE_DIR} )
 somewhere ( e.g. http://server/pstage )
- Set PSTAGE_MIRROR in your local.conf (e.g. PSTAGE_MIRROR = http://server/pstage/ )

When then  building on another computer, pre-built packages will be fetched from PSTAGE_MIRROR and not rebuilt. This will drastically speed up build times.

Note: if you want to use local URIs for PSTAGE_MIRROR (e.g.: file://xxx), you will need following patch, which has been acked but not merged upstream yet:

http://lists.linuxtogo.org/pipermail/openembedded-devel/2011-July/033967.html

With kind regards,
   Fabrice

Re: Open Embedded and Gumstix

[Detlef Vollmann]

On 09/05/11 16:39, Aeschbacher, Fabrice wrote:
> We do this kind of thing by using 'packaged-staging':
>
> - compile the toolchain once on one computer (e.g. 'bitbake meta-toolchain')
> - copy the resulting staging dir ( ${PSTAGE_DIR} )
>   somewhere ( e.g. http://server/pstage )
> - Set PSTAGE_MIRROR in your local.conf (e.g. PSTAGE_MIRROR = http://server/pstage/ )
>
> When then  building on another computer, pre-built packages will be fetched from PSTAGE_MIRROR and not rebuilt. This will drastically speed up build times.
Be aware though that if those machines are not identical
(32/64-bit, different Ubuntu versions, different library versions),
this might break silently.
So it's safer to pre-build and save your packages once for each
machine separately.
But then this will only speed up subsequent builds on the same machine.

   Detlef