I did not have this issue. All I did was "apt-get install simh" and life was good! I am running the 3900 simulation (for now). I will switch over to the 11/780 later this week. -Steve -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of sampsa at mac.com Sent: Thursday, January 03, 2013 07:50 To: hecnet at Update.UU.SE Subject: Re: [HECnet] Raspberry PI and PDP-11 emulation via SIMH On 3 Jan 2013, at 04:34, Cory Smelosky <b4 at gewt.net> wrote: Either it is dated, or the raspbian repository lacks it entirely. I forget which. Dated and no ethernet. Basically do this (as root): apt-get install build-essential apt-get build-dep simh <download SIMH sources and make>