Comments on: On the trail of PCC for the 8086 https://virtuallyfun.com/2022/11/04/on-the-trail-of-pcc-for-the-8086/ Fun with Virtualization Tue, 28 Feb 2023 11:42:10 +0000 hourly 1 https://wordpress.org/?v=7.0.2 By: Jerome Mosby https://virtuallyfun.com/2022/11/04/on-the-trail-of-pcc-for-the-8086/comment-page-1/#comment-323418 Tue, 28 Feb 2023 11:42:10 +0000 https://virtuallyfun.com/?p=12024#comment-323418 The Gunkies page on 4.1BSD could use some updating.

“The release would have been called 5BSD, but after objections from AT&T the name was changed; AT&T feared confusion with AT&T’s UNIX System V.”
There’s an alternate explanation that says the CSRG DARPA contract paperwork says 4BSD on it so they stuck with 4BSD rather than having to redo the contracts.

“4.1 BSD, June 1981 4BSD was upgraded to include…”
Except 4.1BSD was released on May 20, 1981.

“The bootblock programs do not run under SIMH using the 4.0 BSD strategy”
Time passed and it is not necessary to use tape-swapping to boot 4.1BSD.
See TUHS UnixArchive/Distributions/UCB/4.1BSD-19810901-reconstructed/README “boots just fine following the boot procedure
exactly as described in the official 4.1BSD setup document.”

The CSRG ISO 4.1c2 is older than their 4.1c1

On the CSRG ISO, the ages from oldest to newest: 4.1a, 4.1.snap, 4.1c2, 4.1c1.

]]>