On Sat, Jul 25, 2020 at 6:08 PM Dave Horsfall <dave@horsfall.org> wrote:
On Sat, 25 Jul 2020, Warner Losh wrote:

> 2.8BSD is the first one I've seen with a bootable tape (though i've not
> booted it).

Weren't V5/6/7/etc distributed as bootable tapes?  Set the switch register
to point to the tape instead of the disk...

Yes. They were. We have V6 and V7 tapes (and a V5 disk image). Likely earlier versions likely did too.  What I'd meant was that 2.8BSD is the first 2BSD that had a bootable tape.