[yocto] Sharing sstate

[Gary Thomas]

On 2015-03-26 07:44, Gary Thomas wrote:
> I have two development servers, one running an older version
> of Fedora (x86 *), the other runs a recent Ubuntu (x86_64).
> Both are the same CPU core (Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz)
>
> I've just tried building the same target, using the same version
> of Poky/Yocto, sharing the sstate cache (fully populated) from
> the x86_64 machine with the x86 machine.  This was done using
> HTTP.  Sadly, there was not a single file found in the cache
> that could be used.
>
> Should this not be expected to work?  Does sstate cache only
> work across like systems (32 vs 64 bit hosts)?
>
> Also, Mark Hatle mentioned a few days ago that there are ways
> to "lock" versions of the sstate cache.  I still haven't found
> any info/documentation on this.  Can someone please explain more?
>
> Thanks
>
> (*) I can't update my x86 machine to a more recent (x86_64)
> distribution as I have many older "projects" that only run
> on that hardware and no time/opportunity to upgrade, hence
> my desire to share in this manner.
>

I've just verified that if I move my build tree from the x86
machine to the x86_64 (really just build/conf), then sstate
works as expected.

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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