custom kernel, make buildkernel and then?

Zbigniew Szalbot zbyszek at
Tue Oct 10 23:54:07 PDT 2006


Hope you can advise me. I have a FreeBSD 6.1 stable system for which I 
want to build a custom kernel. However, I am scared to death (almost ;) 
and just want to make sure I have it done the right way.

I have in the past used supfile with ports-all option and couldn't build a 
custom kernel. Yesterday it dawned on me that I need sources for that, not 
ports. So I ran cvsup with src-all option. Now, I followed these steps:

# cd /usr/src/sys/i386/conf
# mkdir /root/kernels
# cp GENERIC /root/kernels/LISTS
# ln -s /root/kernels/LISTS

then I used procedure 2 for building the kernel the new way.

# cd /usr/src
# make buildkernel KERNCONF=LISTS

It all went well without any complaint (I was really puzzled - when it 
comes to IT, I usually see half-empty glasses...) but now I wonder. My 
next step is supposed to be make installkernel KERNCONF=LISTS

Is it OK to do it on an already configured system? I have some usual 
applications like php, mysql, apache, exim MTA configured and working. So 
in other words I am trying to build a custom kernel not on a fresh install 
but on an already working system (operating for 25 days). It is not a 
webserver but it is running and needs these apps. My fear is that I am 
likely to break something.

Have I done the right steps? Do you think I can progress with make 

I have also a question about the last command in the recipe:

> Now, shutdown the system and reboot to use your new kernel.

Will shutdown -r now be enough? Or do I have to boot in single user mode?

Sorry if all of these seems obvious. I am new to FreeBSD. Thank you very 
much in advance!

Warm regards,

Zbigniew Szalbot

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