gmirror(8) on 6.3 mfsroot / fixit

[Brian A. Seklecki]

All:

I see that gmirror(8) is available on the 6.3 fixit file system, but
still not a part of the mfsroot.  Is this a crunchgen problem?

The install kernel has had boot/kernel/geom_mirror.ko since the 5x days.
so it seems only appropriate to include the binary.

I guess its a moot point since the fdisk / bsdlabel menus in sysinstall
don't recognized probed geom volumes in /dev/mirror as candidate disks
during installs or updates.

Is there progress with this in RELENG_7 or trunk?  Shall I file PR?

~BAS