Re: [Ltib] One step, CMO build

[Jump, Lance]

Designation: Non-Finmeccanica

>> Is it possible to archive (in SVN, for example) a complete package that

>> allows LTIB to rebuild from “source” with a single command using the

>> libraries that were archived at the time of archive?

>>

>> The situation is this. The developers will configure LTIB (kernel, RFS …) and

>> download all packages needed. At some point, they will check this into an

>> archive so that the Configuration Management Organization (CMO) can

>> check it out and build it.

>>

>> The CMO build will have no access to the internet and the personnel, who

>> are not familiar with LTIB, will want to invoke a script that does everything –

>> even setting up /opt/freecale -- with no interaction.

>>

>> I have been able to do some this, such as setting up a local package pool and

>> using preconfigure, but I cannot accomplish the whole thing without some

>> manual interaction and/or retaining a significant amount of the build by-

>> products.

>>

>> Ideally, I would like to save nothing more than the original source (LTIB and

>> packages) and small number of configuration files. Then have a script that

>> takes these and performs the complete build.

> 

> Obviously you only want to save the LTIB source (and local package pool

> with appropriate configuration in .ltibrc to point to it) in SVN and have the

> CMO machine check it out and build "from scratch".  Of course you have to

> assume that the CMO build machine has all the necessary host packages to

> complete the build (i.e. build-essentials, etc) as well as grants the "build

> user" appropriate sudo permissions.

 

Yes, the CMO build machine would have to be configured. For now, I am experimenting using the development machine as the CMO machine and first running the build interactively there.

 

>

> Given that you could write a script that automates the process via:

>

> 1) check out latest version of the LTIB source directory (that contains the

> local package pool that has copies of everything the build pulls from the

> global package pool)

> 2) rm -rf /opt/freescale

> 3) rm -rf rpm

> 4) sudo rm -rf rootfs*

> 5) rm -f .host_warning*

> 6) rm -f .tc_*

> 7) ./ltib -b --preconfig config/platform/<platform>/<defconfig>

>

> Where "<platform>" is the platform directory and "<defconfig>" is the

> default LTIB configuration file.

> Note the ".tc_*" is the trigger file telling LTIB to skip installing the toolchain

> package and ".host_warning*" is the trigger file telling LTIB to skip building

> its host packages - hence removing them forces LTIB to repeat those steps.

>

> This should pretty much build LTIB completely from scratch...

>

 

The process I tried is similar to the above, except I also start with an empty working directory. So, steps 3 through 6 are implicit. I create the working directory by unpacking the original ltib skeleton.  At that point, everything is there (including the packages in the LPP) and I can run LTIB interactively.

 

However, I do not see how to run it without user interaction. I have tried various combinations of "-b" and "--preconfig" with various saved configurations files. But I can't seem to get the magic set. Below are some that I have tried (ltib/ is a saved run and ../ltib is the fresh working copy):

 

cp .ltibrc ../ltib

cp ltib/config/main.lkc ../ltib/config/

cp ltib/.config ../ltib/

cp ltib/config/.config ../ltib/config/

cp ltib/config/platform/imx/.config ../ltib/config/platform/imx/

cp ltib/config/platform/imx/defconfig.dev ../ltib/config/platform/imx/

cp ltib/config/platform/imx/imx6_defconfig.dev ../ltib/config/platform/imx/imx6_defconfig

 

I am not sure which of these files I need, if I left out some crucial ones or included some that cause problems.

 

 

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