I tried two PPC metarouter images on RouterOS 6.6, but both images still freezing at boot time (without any message)
(Both images working under 5.x)

2janisk: please could you try to run some metarouter on PPC routerboard ?

Hello,
I have the same problem on my RB800 ROS6.5 . I tried four metarouter builds and none of them was working.
On RB951G-2HnD ROS6.4 there is no problem with metarouter...

Rajo