Upgrade Paths

[Aric Gregson]

Hello,

Apologies for this question, but I am not clear on how I can upgrade
from 9.0-CURRENT (July 2011) to 9.0-RELEASE? Must I use CVS or can I
use the freebsd-upgrade pathway? freebsd-upgrade is giving me an error,
so I suspect that either I cannot use it or I must change some setting
prior to its use. 

# freebsd-update -r 9.0-RELEASE upgrade
Looking up update.FreeBSD.org mirrors... 4 mirrors found.
Fetching public key from update5.FreeBSD.org... failed.
Fetching public key from update4.FreeBSD.org... failed.
Fetching public key from update3.FreeBSD.org... failed.
Fetching public key from update2.FreeBSD.org... failed.
No mirrors remaining, giving up.

Thanks very much for any suggestions.

Aric