Yesit measn the compiler on my nwsp2 is ok for for this kernel. That makes it much easier to do experiments as cross compiling has its limitations
Good to hear that the now at least the power led is on, so that change made was right.
To get disk activity blinking you could try the trigger setting again. If thats ok then a simple line in the boot scripts will enable that.
For the poweroff via gpio pin 24.
This can only by done by compiling new kernels.
first one to define the gpio 24 pin without setting a value and trying if a value can be set with exporting the it.
If that not works define gpio pin 24 and set it to value 0 (value 1 we already tried and that made the edmini_v2 not booting anymore)
I will compile those.
But I lost some files during the weekend due to a bug in the firmware and need to set up the kernel files again. But maybe I can send them this evening.