On Tue, Jan 8, 2019 at 2:25 AM Christian Corti via cctalk <cctalk@classiccmp.org> wrote: > I have 2.9BSD on a single RK05 pack *with* a small swap space, it works > very nicely. I have a 11/45 with RK05, RL02 and RX02 in a single cabinet.
My experience with 2.9BSD on an 11/24 in the late 80s was that an install from tape was difficult on a system with an RL02 as the main disk because the install pulled in so much stuff that you really needed to juggle two RL02s and mount one as /usr to get the sources and extras if you wanted to rebuild the kernel. I think if you used the distro kernel there was enough room to install into 10MB (but there wasn't room for multiple kernel files sitting around). If you built a system on a larger configuration, I can see it would be possible to copy only the necessary bits to an RK05 but I can't imagine there's much room left. As I recall, you can fit a full install (sources, man pages...) of 2.9BSD on an RK07 with plenty of room to work. One of the challenges I had then was my largest PDP-11 at home was an 11/24 with 2MB of RAM (a used KT24 was $600!), RX11/RX01, an RL01 of my own, and a borrowed RL02. At work, I had access to an 11/24 with 4 RL02 and I could cable in an RK611 with two RK07 as well as a TU80 tape drive. I did the initial install with the work rig, then trimmed things down to fit on an RL02 to take home. If I ever start playing with that system again, I want to find a couple of MS11-PB (M8743) 1MB ECC cards to max it out. -ethan
