Tizen is primarily designed for the full source to be built via OBS.  If
I were going off on my own to make a Tizen IVI based stack that I could
sell to a tier 1 or directly to an automotive manufacturer, then i would
clone the Tizen OBS environment and then clone all the git tree's and
configure my OBS instance to pull from my git trees.  I would then
continue doing development exactly like I to today on Tizen but just
point my gbs at my own instance of OBS instead of the
downloads.tizen.org.

Yes, gbs does provide some capabilities to build a collection of git
repositories, but not the entire OS including toolchains.

    --rusty

On Tue, 2013-08-20 at 11:34 -0700, Hanchett, Paul wrote:
> Tracy--
> 
> 
> There are multiple perspectives; if I'm a developer trying to create a
> test image, then you're undoubtedly correct.  Probably no need to
> rebuild.
> 
> 
> From a product verification point of view, a corporate user will want
> to be able to verify that they can build the target system from the
> sources they have.  This is required so that product defects can be
> corrected once the design team has moved on to other projects.  
> 
> 
> I've worked on projects that had "lost" sources.  It's a *very*
> uncomfortable place to be.  It is also impossible to evaluate the
> quality or security of a system if you can't both examine the source
> and replicate the build!
> 
> 
> Paul
> 
> Kind Regards
> 
> Paul Hanchett
> 
> -------------------
> Infotainment Engineer
> MSX on behalf of Jaguar Land Rover
> One World Trade Center, 121 Southwest Salmon Street, 11th Floor,
> Portland, Oregon, 97204 
> 
> Email: [email protected]
> -------------------
> 
> Business Details:
> Jaguar Land Rover Limited
> Registered Office: Abbey Road, Whitley, Coventry CV3 4LF 
> Registered in England No: 1672070
> 
> 
> On Tue, Aug 20, 2013 at 10:51 AM, Graydon, Tracy
> <[email protected]> wrote:
>         Apparently one can also use gbs to create an image. I just
>         tried it and it does work. It's obviously just a wrapper
>         around mic itself. "gbs cr -K <kickstart file>" can be used to
>         generate an image.
>         
>         "Gbs build" will build a package from source. I suppose one
>         could use it to build everything and then generate an image
>         from it, but that sounds a lot like torture to me. ;) It is
>         far easier, and likely much more reliable, to use mic and the
>         existing repos to generate an image. If you need to include
>         packages of your own, you can do that from a local repo easy
>         enough.
>         
>         Tracy
>         
>         
>         
>         
>         
>         From: <Ylinen>, Mikko
>         <[email protected]<mailto:[email protected]>>
>         Date: Monday, August 19, 2013 10:13 PM
>         To: "Hanchett, Paul"
>         <[email protected]<mailto:[email protected]>>
>         Cc: UM-PD-Engineering-Electrical-Infotainment-Portland
>         
> <um-pd-engineering-electrical-infotainment-portl...@jaguarlandrover.com<mailto:um-pd-engineering-electrical-infotainment-portl...@jaguarlandrover.com>>,
>  "[email protected]<mailto:[email protected]>" 
> <[email protected]<mailto:[email protected]>>
>         Subject: Re: Process for bare metal build of IVI?
>         
>         Hi Paul,
>         
>         On Tue, Aug 20, 2013 at 12:51 AM, Hanchett, Paul
>         <[email protected]<mailto:[email protected]>> 
> wrote:
>         I'm brining up my build of Tizen:IVI for the first time.  So
>         I'm learning a lot as I go.  :-)
>         
>         My current problem is that when I issue
>         
>         gbs build -A i586
>         
>         to build the image (I think!), I get an error:
>         
>         
>         [Inline images 1]
>         
>         I'd expected that the build would get any sources I was
>         missing but I guess not?
>         
>         So then I tried to follow the wiki article "Creating a Tizen
>         Image from Scratch..." and downloaded the source code.  Now, I
>         can see source code on my machine but I still get the same
>         build error when I issue the command above.
>         
>         How do I do a top level rebuild of the entire tizen project,
>         and should I have to download sources separately from the gbs
>         build?
>         
>         Why is a full local build needed? We have everything build for
>         you in the download repositories.
>         
>         If you want to build (read: create) a bootable image, you
>         don't build sources into RPM
>         packages using gbs but you use mic (image creator) tool.
>         
>         -- Mikko
>         
> 
> 
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