>> On Aug 2, 2017, at 11:32 AM, Aaron Jackson via cctech
>> <[email protected]> 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.
