unknown option "MAXUSERS"

[Dmitry M.]

I tried recompile FreeBSD 5.3 kernel with IPFW support and added only two 
lines:
options  IPFIREWALL              # Enables the kernel firewall code.
options  IPFIREWALL_VERBOSE  # Sends logged packets to the system logger.

I've used both methods from your documentation :
1. metod
---------------------------------
-bash-2.05b# pwd
/usr/src/sys/i386/conf
-bash-2.05b# ls -la
total 72
drwxr-xr-x   2 root  wheel    512 Feb 18 04:05 .
drwxr-xr-x  13 root  wheel    512 Feb 18 02:36 ..
-rw-r--r--   1 root  wheel   9798 Oct 24 21:02 GENERIC
-rw-r--r--   1 root  wheel   1982 Apr  2  2004 GENERIC.hints
-rw-r--r--   1 root  wheel   9798 Feb 18 04:05 GENERIC2
lrwxr-xr-x   1 root  wheel     22 Feb 18 02:40 MYKERNEL 
-> /root/kernels/MYKERNEL
-rw-r--r--   1 root  wheel    120 Feb 27  2003 Makefile
-rw-r--r--   1 root  wheel  33470 Oct 24 21:02 NOTES
-rw-r--r--   1 root  wheel    469 Jul 13  2004 OLDCARD
-rw-r--r--   1 root  wheel   1763 Oct 12 02:59 PAE
-rw-r--r--   1 root  wheel    218 Oct 23 23:04 SMP
-rw-r--r--   1 root  wheel   3991 Jul 26  2002 gethints.awk
-bash-2.05b# config MYKERNEL
MYKERNEL: unknown option "MAXUSERS"
-bash-2.05b#
--------------------------------
2. metod
--------------------------------
-bash-2.05b# pwd
/usr/src/sys/i386/conf
-bash-2.05b# cd /usr/src
-bash-2.05b# make buildkernel KERNCONF=MYKERNEL
make: don't know how to make buildkernel. Stop
-bash-2.05b#
--------------------------------
I tried to find out the reason of problem and find solution on 
http://www.google.com, but without any success. There are a lot of persons 
who have the same problem...
Any ideas?

Thank you for your time.

Skif.