Try handling lack of syscons (for diskless boot, or other) by testing for the presence of /dev/ttyv0.
Try handling lack of syscons (for diskless boot, or other) by
testing for the presence of /dev/ttyv0.

PR:		misc/39351
Submitted by:	Dirk-Willem van Gulik <dirkx@covalent.net>

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase