Upgrade kernel after HD install in 1.2.1, is possible ?

[jamengual]

Hi guys.

Is possible to upgrade the kernel in a 1.2.1 installed on a harddrive ?

I have a intel motherboard Intel DG45FC and with 1.2.1 does not recognize my intel on board nic card and pfsense 2.0 is giving me problems, so I want to upgrade the kernel or install the driver, is that possible ?

freebsd-update or any other tool to do it ?

Thanks.