BSD/OS
From Computer History Wiki
BSD/OS (originally known as BSD/386) was a commerical BSD OS that was released by BSDi.
At the time it was noted for shipping on a CD, and having its full source code available for purchase.
Despite this, it was caught up in the AT&T vs CSRG lawsuit, and while its future looked uncertain, the world had shifted to the Linux kernel which had no legacy or ties to AT&T.
I think there were only a few releases before the company folded.
