On 03/09/2011 03:04, Johann Kois wrote:
On 08.03.2011 19:48, Remko Lodder wrote:
On Mar 8, 2011, at 7:24 PM, Johann Kois wrote:
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On 03/08/2011 18:51, Kostik Belousov wrote:
On Tue, Mar 08, 2011 at 05:46:12PM +0000, Johann Kois wrote:
jkois 2011-03-08 17:46:12 UTC
FreeBSD doc repository
Modified files:
en_US.ISO8859-1/books/handbook/kernelconfig chapter.sgml
Log:
PR: docs/150124
Fix/Update the instructions on "how to build a custom kernel".
- The fact that you need the whole source tree for this is well hidden at the
moment.
I do not believe this is true. Kernel should not have dependencies
outside sys/.
Well that was definitely true in the old days. But things have changed
a couple of years ago.
http://www.freebsd.org/cgi/cvsweb.cgi/doc/en_US.ISO8859-1/books/handbfullook/kernelconfig/chapter.sgml
(Revision 1.157).
Or http://www.freebsd.org/cgi/query-pr.cgi?pr=75864
Regards.
jkois
With Kostik's response included; should we go for the 'alternatively to only build the
kernel do the "old" mumbojumbo' ?
Hi all,
what about some hard facts instead of "...may work..." "...should
work..." and "...I believe..."? ;-)
Can we guarantee 100 % that the "traditional method" still works? If
not, then the "traditional way" should stay where it is now (in the
developers handbook):
I can 100% guarantee that the old method works on every release of
FreeBSD from 2.1.2 through FreeBSD-current, as well as nearly all weigh
points in between. Where it doesn't work, the new method doesn't work
either (eg the build is completely broken). The number of preconditions
for the old way is higher than the new way, but it still works and will
continue to work. The 'buildkernel' way minimizes the number of
preconditions, and is why we recommend it to people merely building the
kernel, as opposed to doing heavy development where the old method has
some advantages (which is why it is still working).
It is a design point of the kernel that it depends on nothing outside of
the src/sys tree to build (assuming up-to-date tools). It is a bug that
we would fix if the old method failed to work on a tree that has only
src/sys in it.
Warner
http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kernelbuild.html:
"Up to version 4.X of FreeBSD this was the recommended way to build a
new kernel. It can still be used on newer versions (instead of the
“buildkernel” target of the toplevel /usr/src/ makefiles). Building the
kernel this way may be useful when working on the kernel code and it may
actually be faster than the “New” procedure when only a single option or
two were tweaked in the kernel configuration file. On the other hand, it
might lead to unexpected kernel build breakage when used by beginners on
newer versions of FreeBSD."
And the handbook (targeted not only but especially at new/less
experienced users) should describe the method we have recommended for
the last 5 years now (in the handbook and in the developers-handbook).
Regards.
jkois
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