Configuring Kernel
Download srcsys.tar.gz from ftp://ftp.openbsd.org/pub/OpenBSD/2.8 and unpack it into the /usr/src/ directory.
cd /usr/src gzip -dc srcsys.tar.gz | tar xvf -
To update the kernel source tree to the latest version using CVS, perform the following steps:
export CVS_RSH="/usr/bin/ssh" export CVSROOT="anoncvs@anoncvs1.usa.openbsd.org:/cvs" cd /usr/src/sys cvs update -d
Read the options(4) man page which has a complete list of options. You can also check /usr/src/sys/conf/GENERIC and /usr/src/sys/arch/i386/conf/GENERIC files.
All the options should be placed in your kernel configuration file in the form of:
option OPTION
When there is unreconized isapnp devices, you should add their name to /sys/dev/isa/pnpdevs and /sys/dev/isa/pnpdevs.h files and recompile your kernel to have them detected.
Building your own kernel
To build a new kernel, do like this:
cd /tmp/kernel config -s /usr/src/sys -b /tmp/kernel kernel.config make clean make depend make
Once a new kernel is compiled, move it to /bsd.
mv /bsd /bsd.old mv /usr/local/tmp/bsd /bsd
