[Buildroot] svn commit: trunk/buildroot/target/linux

[Ulf Samuelsson <ulf.samuelsson@atmel.com>]

> I think that we mess with two different goals:
> 
> 1) Allow the build to complete by not using "/tftpboot". This is really 
> important. As pointed many times:
>  - System don't have alway a /tftpboot.
>  - It is not alway writable by the users.
>  - Superuser are not alway ok to do a /tftpboot just for an application.

Linux is not built by default.
If you enable Linux, then the normal build is the default.
The problem only occurs when you do the advanced build
and have the COPYTO_TFTPBOOT set.

There is an easy workaround, and that is to disable copying to /tftpboot if there is a problem.
You can always copy manually from your BINARIES to wherever,
or use the programmable COPYTO.

Question is how much we need to protect the user from impossible combinations.


>  - It will not work as expected in case multiple users run buildroot.
>  - It is the wrong path for a TFTP server in many new distributions.
> So I think there is really no point to keep it (other than the effort to 
> change little code in target/linux/Makefile.in.advanced). All the 
> Makefile targets and results of the build at this stage must be only 
> into the buildroot user tree.

The point is that it simplifies the complete build to doing "make".

> 
> 2) Option to copy the result of the build into the TFTP server 
> directory. This stage simply take the result of the previous stage and 
> allow to have ready to go files available with the TFTP protocol at the 
> end of the build. Technically the best way would be to know if there is 
> a TFTP server installed and use the directory he serve as a default, or 
> to not make a copy if none is installed. As this idea seem difficult to 
> make, I agree that we can live with "/tftpboot" by default, even if I 
> suspect that "/var/lib/tftpboot" will be more and more appropriate.
> 
> This will not solve the possibility that multiple users clash there 
> files into the TFTP directory, but at least this remove any possibility 
> that there build are broken because of a common target in there 
> Makefiles. Users that wants to share a common TFTP server should take 
> each others to agree to a directory structure into the TFTP server that 
> let each of them have a private space for theres files.
> 

As long as they do not use the same project name, there is no conflict.
That is the purpose of the long file names.

> --
> Jean-Christian de Rivaz
>


Best Regards
Ulf Samuelsson                ulf at atmel.com
Atmel Nordic AB
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