On 3/10/2016 8:57 PM, Richard Cini wrote: > Maybe I’ll re-create the image again and see if that helps. I’m using > the RT11v4 image from the SIMH distribution and it boots just fine (as > an RK05 image) under SIMH. Rich Try making an RL02 image from the RK05 image in SIMH and booting from that (in SIMH). - JS.