building Yocto on Fedora 14 vs. Ubuntu 11.10

building Yocto on Fedora 14 vs. Ubuntu 11.10

[Jim Abernathy]

I'm finding differences between the number of task for building 
meta-cedartrail on ubuntu 11.10 vs. doing the same thing on Fedora 14 
and wondered if this is a problem.

On a clean build of core-image-sato, the first section has 63 tasks on 
Ubuntu 11.10, but 126 tasks on Fedora 14.  126 is the number I remember 
seeing for the first section of the build on other Sato builds.

Is this an issue? is this caused by the different development O/S's?

BTW the second part of the build has 4426 tasks on Ubuntu 11.10 and also 
on Fedora 14.

Re: building Yocto on Fedora 14 vs. Ubuntu 11.10

[Mark Hatle]

On 1/5/12 9:59 AM, Jim Abernathy wrote:
> I'm finding differences between the number of task for building
> meta-cedartrail on ubuntu 11.10 vs. doing the same thing on Fedora 14
> and wondered if this is a problem.
>
> On a clean build of core-image-sato, the first section has 63 tasks on
> Ubuntu 11.10, but 126 tasks on Fedora 14.  126 is the number I remember
> seeing for the first section of the build on other Sato builds.
>
> Is this an issue? is this caused by the different development O/S's?
>
> BTW the second part of the build has 4426 tasks on Ubuntu 11.10 and also
> on Fedora 14.

In the bitbake wrapper (scripts/bitbake), there is a check to see if the host 
version of tar is greater then 1.23.  If it is not, then tar is added to the 
early set of tasks.  This likely is the cause of the different task sets you see.

--Mark

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> yocto@yoctoproject.org
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Re: building Yocto on Fedora 14 vs. Ubuntu 11.10

[Paul Eggleton]

On Thursday 05 January 2012 10:59:02 Jim Abernathy wrote:
> I'm finding differences between the number of task for building
> meta-cedartrail on ubuntu 11.10 vs. doing the same thing on Fedora 14
> and wondered if this is a problem.
> 
> On a clean build of core-image-sato, the first section has 63 tasks on
> Ubuntu 11.10, but 126 tasks on Fedora 14.  126 is the number I remember
> seeing for the first section of the build on other Sato builds.
> 
> Is this an issue? is this caused by the different development O/S's?

This is almost certainly due to the version of tar in Fedora 14 being "too 
old" such that it contains a bug in symlink handling - if it is then we just 
build tar-replacement-native and use that instead.

Nothing to worry about :)

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre