Paul - you are correct that its got a lot of it there and in particular the kernel (which is good). But the /usr directory (and thus /usr/src) is missing. It's not a completely distribution, it's the BBN 4.1 TCP distribution which was a subset. As I said, 4.0 and 4.1 were similar, but different. The trick is find a complete 4.1 distribution tape. On Sat, May 2, 2020 at 5:10 AM Paul Ruizendaal wrote: > > On May 1, 2020, at 11:57 PM, Clem Cole wrote: > > > [Note to Warren, we should put 4.1 in the browsing tree. The kernel is > different enough from 4.0 and does have new utilities, although it was not > nearly as different as 4.1c. The reality is until 4.2BSD came out with the > networking support, most Vaxen running BSD were 4.1 not 4.0 based. > > > It is already there! The entry named "BBN's TCP/IP Code for the VAX” is > 4.1BSD with the BBN TCP stack added. The changes to the kernel are just one > or two dozen lines (all in sys2.c and main.c) bracketed in #ifdef BBNNET > blocks. The actual network stack is in a separate build directory. > > Maybe the entry should be renamed “4.1BSD with TCP/IP” to make this more > clear. > > >