All, I spent the weekend working on my VTserver program, which lets you copy disk images in/out of a PDP-11 without a tape drive. It's at ftp://minnie.cs.adfa.edu.au/pub/PDP-11/Vtserver Could I get anybody with a PDP-11, 256Kbytes of core, and no tape drive to try this out. I'm keen to find out which -11 models it does or doesn't work on. Also, if you have less than 256Kbytes of core, please let me know if you want Vtserver to run on your platform. If there's enough interest, I'll try to rewrite the code to fit in a smaller footprint. At present, Fred van Kempen is also working on adding VT support to Ultrix-11. When he's done, we will do a merge of the server, and add his Ultrix client code into a separate directory of the VT distribution. Attached is some more blurb from the README. Warren The Vtserver program provides you with a method of copying a disk image into a PDP-11, or extracting a disk image from a PDP-11, without a tape drive or indeed an installed operating system. The approach here is use a nearby Unix or Linux computer as both the PDP-11 console and as a virtual tape server. The VTserver software comes as two components: a set of PDP-11 software which acts as the virtual tape client, and the server which is hosted on the nearby Unix machine. The two computers are connected via an RS-232 null modem with hardware handshaking. I've used the Ersatz-11 2.0 demo simulator with various CPU models, and RL02 and RK05 disk images, to test copy. Here are the results: copy can read and write disk images for /24, /34A, /40, /44, /45, /70 and /94 systems when they have 256Kbytes of memory. It doesn't work for the 11/35 as it doesn't have the MUL instruction, which the 2.11BSD C compiler generates.