[CFT] bsdinstall and zfsboot enhancements

[Michael Dexter]

Hello all,

I have been experimenting with various BSD and GNU/Linux boot media
under bhyve and noticed that we may want to accommodate the "LiveCD"
mode of the installer, which in turn requires the correct console.

Currently, one is prompted for VT100 for installation but this does not
appear to work/stick for LiveCD mode.

Can anyone verify this?

Michael