Use of COMPAT Kernel Options

[Roland Smith]

On Fri, Dec 04, 2009 at 04:39:59PM -0500, APseudoUtopia wrote:
> Hello,
> 
> I'm working on editing the kernel configuration file for a custom
> kernel. The system will be running FreeBSD 8.0-RELEASE-p1. I'm
> wondering about the use of the COMPAT options in the kernel config.
> COMPAT_43

Well, COMPAT_43 one isn't even in GENERIC anymore, so I guess it is not that
important anymore.

> COMPAT_43TTY

This is still in the GENERIC kernel. I'd keep it in initially. Then build a
kernel without it. If that fails to start the system properly, you'll always
have a good kernel to fall back on.

Have a look at what is written under COMPATIBILITY OPTIONS in /sys/conf/NOTES.

> COMPAT_FREEBSD[4-7]

If you do not have binaries from ealier FreeBSD versions around, you can skip
these. 

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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