Hello all, I would like to understand if it is still possible to build an image for raspberrypi4-64 where the preempt-rt patch is applied to the kernel, e.g. by adding " PREFERRED_PROVIDER_virtual/kernel" to local.conf.
I could see that in older branches of [meta-raspberrypi] there was a specific recipe for the preempt-rt patch, e.g. linux-raspberrypi-rt_4.19.bb ( https://github.com/agherzan/meta-raspberrypi/blob/warrior/recipes-kernel/linux/linux-raspberrypi-rt_4.19.bb ). This recipe was using the specific raspberrypi branch rpi-4.19.y-rt. I see that in newer branches this rt branch disappeared but I was not able to understand the history and what is the current method to implement this patch, assuming is still supported. Any hints on how to do this would be much appreciated. Best Regards, Carles
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