Some while ago I installed a FreeBSD server with 7.3-PRERELEASE, although now I wanted to have it properly upgraded to 7.3-RELEASE.
I looked into it quite often... although run into the issue that it didn't work...
# uname -r
7.3-PRERELEASE
# freebsd-update upgrade -r 7.3-RELEASE
Looking up update.FreeBSD.org mirrors... 4 mirrors found.
Fetching public key from update4.FreeBSD.org... failed.
Fetching public key from update3.FreeBSD.org... failed.
Fetching public key from update5.FreeBSD.org... failed.
Fetching public key from update2.FreeBSD.org... failed.
No mirrors remaining, giving up.
On the FreeBSD forum I found the following thread:
Based on the information there I performed the following steps:
# env UNAME_r=7.3-RELEASE freebsd-update -v debug fetch -r 7.3-RELEASE
Then install the updates:
# env UNAME_r=7.3-RELEASE freebsd-update -v debug install
And as last step do a reboot, and the result is:
# uname -r
7.3-RELEASE-p7
