-- Ultrix 4.5 for the DECStation --

Yeah, this is fairly simple. You need GXemul, the latest version (0.7.0) works perfectly fine for now, didn't run into regression bugs unlike some other OSes I've dealt with. To run, execute the following in the terminal:

gxemul -X -e 3max -j vmunix -d rootdisk.img

The root password is "fatseal" without the double quotes.

You might want to read this snippet from the GXemul docs:

If you have a very fast host machine, you might experience a weird timer related bug, which makes it impossible to logon to the system when using the graphical logon. It is triggered when the emulation goes faster than any real DECstation machine was capable of running. The first thing to try is to re-attempt the login a couple of times. The second thing I usually try is to break into the GXemul debugger prompt, turn on trace and continue running, login, and then break into the debugger again and turn off trace and finally continue.

Breaking into the debugger is Ctrl+C while in the terminal window you ran GXemul in.

You also need xterm to be installed on the PC, no matter what terminal you use GXemul uses plain xterm for the initial console.

-seal331