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To: Bryan Maynard <bryan.maynard@reallm.com>
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From: garys@opusnet.com (Gary W. Swearingen)
Date: Thu, 28 Jul 2005 16:40:45 -0700
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Cc: freebsd-questions@freebsd.org
Subject: Re: Backup kernel - confirmation
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Bryan Maynard <bryan.maynard@reallm.com> writes:

> Yes, you can do that. Also of note is that when FreeBSD compiles a 
> kernel it takes the old kernel and renames it kernel.old. When FreeBSD 
> is booting you can select which kernel to use simpy by entering 
> "boot /boot/kernel.old/kernel" or "boot /boot/kernel_orig/kernel". I 
> did this when I was tweak the kernel in my laptop. Check the boot man 
> page for more info.

I'm getting the Handbook changed on this subject just now.  When the
standard make scripts are _installing_ a kernel (and modules) in 5.x,
It only renames kernel -> kernel.old if your most recent boot used
kernel; it overwrites kernel if you booted with kernel.old or
kernel.GENERIC, etc.