I tried and it stated it needed a fsck. I ran fsck and it said something about Journalling and y/n so I said Yes and it applied Journaling. I then was able to mount -u / then reboot and its still won't boot. I started another fresh VM to work with and will delete this one.
I just ended up deleting the VM and started over. There is obviously something wrong in the pkgng repository as many Apps now no longer run once installed stating that dependencies are missing. In time they'll get all fixed. Had the same issue last Summer and a couple of months later it was all good.