Just a heads-up to others who might run into this. I got an error from a
commercial app (Lugaru Epsilon) after upgrading to FC2 that it couldn't
open any pty's. (Pseudo tty's, used to create a virtual tty pair, typically
for terminal emulation by programs like telnet and xterm.) It was because
it was coded to use the legacy BSD pty's instead of the new SysV ones. The
developer is working to add support for the latter, but meanwhile I'll need
to to build a custom kernel with the legacy pty's enabled.
