Improved INCLUDE_CONFIG_FILE

[Gavin Atkinson]

On Mon, 2007-03-26 at 06:42 -0500, Larry Rosenman wrote:
> On Mon, 26 Mar 2007, Peter Jeremy wrote:
> 
> > On 2007-Mar-25 23:55:26 -0500, Eric Anderson <anderson at freebsd.org> wrote:
> >> On 03/25/07 09:34, Gavin Atkinson wrote:
> >>> strings `sysctl -n kern.bootfile` | grep ^___ | sed -e 's/^___//'
> >>>
> >>> should still work if it was in a .comment section
> >>
> >> Unless you no longer have the running kernel, or it has changed since
> >> the boot up of the system.  A sysctl knob to dump it is *very* useful.
> >
> > Note that kern.bootfile will get updated during installkernel.  I also
> > can't think of a situation where I would have lost all copies of my
> > running kernel as well as the config file that was used to build it.
> > This could potentially happen if you ran two or more installkernels
> > without rebooting but I can't think of any reason why I would do that:
> > If a kernel builds, I am likely to try booting it before going onto
> > something else.  If a kernel doesn't build, it won't install.
> >
> > Overall, having the config file loaded strikes me as a waste of RAM.
> 
> I had a weird situation where the /usr/src directory got trashed, but the 
> system was still up.  I did *NOT* have a good copy of the config so had
> to recreate it.

... but you had the running kernel in /boot/kernel?  In which case,
a .comment section would be fine.

Gavin