docs/84154: Handbook somewhat off in use of /boot/kernel.old

[John Baldwin]

On Wednesday 27 July 2005 06:50 am, Giorgos Keramidas wrote:
> The following reply was made to PR docs/84154; it has been noted by GNATS.
>
> From: Giorgos Keramidas <keramida at freebsd.org>
> To: "Gary W. Swearingen" <garys at opusnet.com>
> Cc: bug-followup at freebsd.org
> Subject: Re: docs/84154: Handbook somewhat off in use of /boot/kernel.old
> Date: Wed, 27 Jul 2005 13:47:37 +0300
>
>  On 2005-07-26 22:57, "Gary W. Swearingen" <garys at opusnet.com> wrote:
>  > The handbook's concept of /boot/kernel always being moved to
>  > /boot/kernel.old is wrong (in two places).  The move is only
>  > made if the currently running kernel came from /boot/kernel/.
>
>  AFAIK, the move is made everytime "installkernel" runs.  You can verify
>  this by:
>
>  	a) Copy /boot/kernel.old to /boot/kernel.saved.old and
>  	   /boot/kernel to /boot/kernel.saved
>
>  		# cd /boot
>  		# cp -Rp kernel.old kernel.saved.old
>  		# cp -Rp kernel     kernel.saved
>
>  Then go through a few "installkernel" runs and watch the /boot/kernel
>  and /boot/kernel.old directories.

The submitter is correct.  If you boot kernel.old and then do an installkernel 
it will just overwrite /boot/kernel.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org