How can I change back from pcbsd to freebsd?

[james]

I had 'upgraded' to TrueOS in the absence of pkg repos, but now I'd like 
to change back.

In my freebsd-update.conf I have:

ServerName fbsd-update.pcbsd.org

I'm not 100% sure the update from 9.1 to 9.2 worked.

uname -a gives:

FreeBSD nas.lan 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 
09:23:10 UTC 2012 
root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64

while clang -v gives:

root at nas:/etc # clang -v
FreeBSD clang version 3.3 (tags/RELEASE_33/final 183502) 20130610
Target: x86_64-unknown-freebsd9.2
Thread model: posix


Anyway, I'd like to pick up vanilla 9.2 if I can and then move to 10.0 
with its release.

Is it going to be possible?

I have a ZFS data area but boot is on a hardware RAID1 with UFS.

James