I've assembled some notes from old manuals and other sources
on the formats used for on-disk file systems through the
Additional notes, comments on style, and whatnot are welcome.
(It may be sensible to send anything in the last two categories
directly to me, rather than to the whole list.)
Is it okay for me to ask a question about Linux that's from '91~'92?
Does anyone happen to have copies of H.J. Lu's Bootable Root and the
associated Linux Base System disk images from the early '90s?
I've managed to find a copy of 0.98.pl5-31 bootable root disk. But I
can't find any base disks to go along with it.
The files used to be on tsx-11.mit.edu:/pub/linux/GCC in rootdisk and
Unfortunately all of the mirrors I'm finding of tsx-11 are newer, have
the basedisk directories, but no image files there in.
Grant. . . .
unix || die
What's the current status of net/2?
I ask because I have a FreeBSD 188.8.131.52 CVS repo that I'd like to make
available. Some of the files in it are encumbered, though, and the
University of California has communicated that fact. But what does that
actually mean now that V7 has been released and that's what the files were
based on? Are they no longer encumbered?
The topic of GBACA (Get Back At Corporate America), the video game for
the BLIT/5620, has come up on a Facebook group.
Does anyone happen to have any details about it, source code, author,
screen shots, ...?
> V6, as distributed, had no networking at all. There are two V6 systems with
> networking in TUHS:
> https://minnie.tuhs.org//cgi-bin/utree.pl?file=SRI-NOSC <https://minnie.tuhs.org//cgi-bin/utree.pl?file=SRI-NOSC>
> https://minnie.tuhs.org//cgi-bin/utree.pl?file=BBN-V6 <https://minnie.tuhs.org//cgi-bin/utree.pl?file=BBN-V6>
> The first is an 'NCP' Unix (unless unless you have an ARPANet); the second is
> a fairly early TCP/IP from BBN (ditto, out of the box; although one could write
> an Ethernet driver for it).
I’ve also done a port of the BBN VAX stack to V6 (running on a TI990 clone), using a serial
PPP interface to connect. Experimental, but may have the OP's interest:
> There's also a fairly nice Internet-capable V6 (well, PWB1, actually) from MIT
> which I keep meaning to upload; it includes SMTP, FTP, etc, etc. I also have
> visions of porting an ARP I wrote to it, and bringing up an Ethernet driver
> for the DEQNA/DELQA, but I've yet to get to any of that.
I’d love to have a look at that and compare and contrast the approaches.
I’m finding that BBN’s original design, with a separate kernel thread for the network stack,
is elegant but difficult to tune: too much priority and it crowds out user processes, too little
and the slow PPP line is not kept busy.
I think I’m beginning to understand why CSRG (and later also BBN) moved to
the interrupt driven structure of 4.2BSD: perhaps it was also difficult to tune for a
VAX with ethernet.
> From: Paul Riley
> In the bootable images archive, there's the "Unknown V6" RL02
> image. I've tried that on SimH configured as an 11/23+ with 256kB of RAM
> and it seems to work fine.
Sorry, where's this archive? Somewhere in:
I assume? From the description, that might be from the 'Shoppa disks'; didn't
realize that was a /23 on those.
> I would assume that Ethernet boards are available, but not supported on
V6, as distributed, had no networking at all. There are two V6 systems with
networking in TUHS:
The first is an 'NCP' Unix (unless unless you have an ARPANet); the second is
a fairly early TCP/IP from BBN (ditto, out of the box; although one could write
an Ethernet driver for it).
There's also a fairly nice Internet-capable V6 (well, PWB1, actually) from MIT
which I keep meaning to upload; it includes SMTP, FTP, etc, etc. I also have
visions of porting an ARP I wrote to it, and bringing up an Ethernet driver
for the DEQNA/DELQA, but I've yet to get to any of that.
> it's hard to glean that wisdom from reading the manual.
Yeah, DEC manuals went through a phase-change around about the time of the
/23. Old DEC manuals are wonderful; stuffed to the gills with deep technical
details. Suitable for engineers...
Later, they turned into manuals for 'ordinary people' - 'plug cable C1 into
plug P1'. Semi-useless; although one can often glean a few useful morsels if
you trawl through the entire thing.
That's why I've been doing PDP-11 pages on the CHWiki which attempt to cover a
lot of technical detail, in a high technical content/size way.
If you need something that's not there, let me know, and I'll get to adding it.