[oe] Building a rootfs, without building a kernel

[Philip Balister]

David Baird wrote:
> 2008/6/24 Philip Balister <philip at balister.org>:
>> I am trying to build a powerpc root file system for a xilinx ml403 board.
>> Since we do not have a working kernel build for this machine, I tried
>> commenting out the PREFERRED_PROVIDER for virtual/linux. The build then
>> tries to build linux-rt. I tried ASSUME_PROVIDED for the kernel when the
>> preferred provider is not commented out and it still tries to build the
>> kernel.
>>
>> Looking at the dependency graphs seems to suggest the requirement comes from
>> the do_rootfs task.
>>
>> Does anyone know how to build an image, without building a kernel for a
>> machine?
> 
> I have been using this pattern in my BBMASK:
> 
>     BBMASK = "(linux-ml403-slab-2.6.x_git[.].*)"
> 
> and then I made up my own task and image .bb files to establish what
> files I want in my rootfs.  I would also appreciate suggestions on a
> better way to do what to do this.

I pushed changes to linux-ml403-slab (I think I renamed the recipe 
linux-xilinx-slab) so the compile completes. I don't do anything to 
prepare the kernel for actual use. This lets the images build. When I 
finally figure out how to build kernels for Xilinx FPGA based PPC 
boards, I'll worry about creating a bootable kernel. (Unless someone 
beats me to it)

Possibly, we should create a dummy kernel bb file since this may be the 
best solution for the general case of people building images without a 
working kernel bb file.

Philip
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