[Lava-users] Fitting the LAVA overlay into an Android rootfs

Steve McIntyre steve.mcintyre at linaro.org
Tue Nov 21 13:32:42 UTC 2017


On Tue, Nov 21, 2017 at 02:27:36PM +0100, Nicolas Dechesne wrote:
>On Tue, Nov 21, 2017 at 2:21 PM, Steve McIntyre <steve.mcintyre at linaro.org>
>wrote:
>    On Tue, Nov 21, 2017 at 12:49:42PM +0000, Milosz Wasilewski wrote:
>    >>
>    >> Ideally, the Android builds would have a rootfs configured to be as
>    >> small as possible - it's automatically resized to fit the available
>    >> space at first boot, and leaving space otherwise is
>    >> inefficient. However, if we're going to add the LAVA test overlay into
>    >> the rootfs, space needs to be left for it to fit. That's not
>    >
>    >Could you give a bit more context/use case on why the overlay is
>    >needed? I have similar discussions with YongQin and the main issue he
>    >raises is that binaries in such potential overlay might not be
>    >compatible with rootfs that is used. So I'm wondering if the overlay
>    >only contains scripts or the mentioned limitation was somehow solved?
>
>    The overlay we're talking about here is the LAVA test overlay with the
>    test scripts, requested git repos etc. I'd expect it to be quite rare
>    that you'd have compiled binaries in it, but it's possible - it
>    depends on the particular test use cases.
>
>
>and the main issue is that we (e.g. the one who creates the image) does not
>know in advance what the size of the overlay will be, since the size is
>dependent on who is going to write the tests. So the ask, is for LAVA to
>increase the resize the image if needed. 

Nod. We're putting stories in for this today. I'll post links shortly.

Cheers,
-- 
Steve McIntyre                                steve.mcintyre at linaro.org
<http://www.linaro.org/> Linaro.org | Open source software for ARM SoCs



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