Custom kernel under RPI

[Tim Kientzle]

On Mar 16, 2013, at 10:10 AM, Loïc BLOT wrote:

> Hmm
> now when i run  make buildkernel TARGET_ARCH=armv6 KERNCONF=RPI-B
> WITH_FDT=yes i got this error:

Without seeing more information, the error you shared is not helpful.

Are you doing this on the RPi or are you cross-building?

To build a kernel on the RPi, you just need to

    cd /usr/src
    make KERNCONF=RPI-B buildkernel

(The TARGET_ARCH options are only used when cross-compiling.)
If you are cross-compiling, you should make sure you have an up-to-date cross-build tools as well:

   cd /usr/src
   make TARGET_ARCH=armv6 kernel-toolchain
   make TARGET_ARCH=armv6 KERNCONF=RPI-B buildkernel

If you just want one extra module, you don't have to recompile the kernel at all.  All FreeBSD kernels are modular; but not all configurations build extra modules.  You can just build and load the single module you need directly on the RPi:

  cd /usr/src/sys/modules/runfw
  make
  make load


Cheers,

Tim

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