>> On Aug 2, 2017, at 11:32 AM, Aaron Jackson via cctech >> <cct...@classiccmp.org> wrote: >> >> Hi all, >> >> I will soon be getting a PDP-11/73 with 1MB of RAM, an RLV12 and DEQNA >> controllers. I already have two RL02 and packs (which need a clean), >> with thanks to Dave Wade on this list. >> >> Ideally I would like to run 2.11BSD, on two RL02 drives, I'm not sure >> this is going to be possible. Does anyone know/think otherwise? Maybe by >> removing *many* unnecessary and running strip on any binaries left from >> my destruction? Ignoring spare for the user, for the time being... >> >> If not, what other UNIX options are there which I will be able to use, >> supporting the DEQNA and running on two RL02 drives? >> >> Input much appreciated. > > Here’s what I did (but I wasn’t space constrained as I have the equivalant > of 4 RP06 drives).
That is huge compared to my total of 20MB! :D > You’ll likely have to configure the kernel. This is easiest done within an > emulator, > as it took 24hours on my 11/70. I decided that the emulator approach was best > after the 2nd time I screwed it up. :-/ > Thanks for the suggestion. I have been playing with this already. I recompiled the kernel and set a bunch of stuff to NO which I knew I wouldn't need. It compiled fine, but then said: base segment is 47232, min is 49152, too small by 1920 bytes. System will occupy 175264 bytes of memory (including buffers and clists). end {0054200} nbuf {0012134} buf {0035352} nproc {0012122} proc {0044344} ntext {0012124} text {0053240} nfile {0012130} file {0051260} ninode {0012126} inode {0012220} ncallout {0012132} callout {0025764} ucb_clist {0012140} nclist {0012136} ram_size {0000000} xitdesc {0012216} quotdesc {0000000} namecache {0035070} _iosize {0000000} nlog {0011206} **** SYSTEM IS NOT BOOTABLE. **** If anyone can explain what this mean and possibly how to fix it, I'd be very pleased. > Running on an emulator allows you to “play around” with the configuration > and what will and won’t fit. You’ll likely have to start with a > configuration larger > than your target just to get started (but I haven’t done it in a long time so > YMMV). > > That will also tell you what you can reasonably fit on two RL02 drives. Also > it’s > easier to “back up” and start over if you make mistakes (save a version of the > emulated disk files before making substantive changes and copy them back if > you screw up). > > Once you have something working reasonably well, you can transfer the “bits” > over to your 11’s RL drives though your preferred method. > > TTFN - Guy Thanks again, Aaron.