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Date:      Mon, 26 Feb 2007 16:19:36 -0800
From:      "Kevin Oberman" <oberman@es.net>
To:        John Baldwin <jhb@freebsd.org>
Cc:        Scot Hetzel <swhetzel@gmail.com>, freebsd-current@freebsd.org, current@freebsd.org
Subject:   Re: Unable to use network early in boot with recent -current 
Message-ID:  <20070227001936.2C16545055@ptavv.es.net>
In-Reply-To: Your message of "Mon, 26 Feb 2007 16:58:14 EST." <200702261658.15805.jhb@freebsd.org> 

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> From: John Baldwin <jhb@freebsd.org>
> Date: Mon, 26 Feb 2007 16:58:14 -0500
> 
> On Thursday 22 February 2007 02:29, Scot Hetzel wrote:
> > On 2/21/07, Skip Ford <skip.ford@verizon.net> wrote:
> > > Kevin Oberman wrote:
> > > > Any thought of making module loads default to the directory of the
> > > > booted kernel (e.g. /boot/kernel.old) instead of /boot/kernel?
> > >
> > > This should already happen if you "set kernel" to kernel.old and
> > > then "boot".
> > >
> > 
> > I set the kernel variable in loader.conf, so that I can have multiple
> > kernels installed and choose which kernel to boot the next time the
> > server is booted.
> > 
> > /boot/loader.conf
> > #kernel="kernel_p4_debug"
> > kernel="kernel_debug"
> > 
> > hp010# sysctl -a | grep kernel
> > kern.bootfile: /boot/kernel_debug/kernel
> > kern.module_path: /boot/kernel_debug;/boot/modules
> 
> You can also just do 'boot foo' at the loader prompt, and it is the same as 
> doing:
> 
> unload all
> set kernel=foo
> boot
> 
> I use this all the time to boot test kernels.

John,

Thanks for the confirmation.

That's what I had always assumed. I, too, have used that method for
years and failed to see that it made any difference.

I have now built a new kernel (with modules) from the sources back on
December and I am no longer getting the warnings about the module being
newer than the linker.hints file. I am totally baffled as to what
triggered this as I did confirm that the modules and the linker.hints
file were created at the same time (modulo 1 minute) and I don't see
how this could have gotten messed up. 

In any case, Thanks for all of the comments on booting different
kernels. I do this quite often and I'm now pretty sure that I am
doing the right things(TM).
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman@es.net			Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4  EADA 927D EBB3 987B 3751

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