kernel "mismatch" on r256420

[Darrel]

>>>> I installed FreeBSD 10 from a BETA cd-rom.  I chose 'experimental ZFS on 
>>>> root - mirror'.  The FreeBSD firewall will not load.  Any suggestions?
>>>> 
>>>> This is from 'dmesg':
>>>> 
>>>> KLD ipfw.ko: depends on kernel - not available or version mismatch
>>>> linker_load_file: Unsupported file type
>>>>

I have no idea where the old kernel could be coming from.  I can not find 
it on the system:

(153) @ 0:20:34> uname -ir
10.0-BETA1 GENERIC
(154) @ 0:20:37> pwd
/boot
(155) @ 0:20:46> ll | grep kern
drwxr-xr-x  2 root  wheel   1.5K Dec  1 23:40 kernel/
drwxr-xr-x  2 root  wheel   1.5K Dec  1 13:52 kernel.old/

Darrel