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Date:      Sun, 19 Nov 2006 00:32:55 -0500
From:      Chuck Swiger <cswiger@mac.com>
To:        Darrel <levitch@iglou.com>
Cc:        questions@freebsd.org
Subject:   Re: system updates, as affected by securelevel
Message-ID:  <455FEC87.6030007@mac.com>
In-Reply-To: <Pine.GSO.4.61.0611181618200.1912@shell1>
References:  <Pine.GSO.4.61.0611181618200.1912@shell1>

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Darrel wrote:
> With OpenBSD securelevel=2 I can install a kernel, make build, and
> install programs which are compiled using Systrace.
> 
> What is the highest securelevel that I can configure on RELENG_6_2
> which will not affect compiling and installing; e.g., perhaps not
> much local difference but having to reboot for a firewall change?
> This installation is new and the AUDIT option will be in the kernel.

securelevel = 0.

Because the kernel is installed using the schg flag: if you have securelevel 
set to 1 or higher, you will not be able to over-write the kernel without 
rebooting into single-user mode.  See "man init" for details.

[ Of course, reinstalling the kernel and/or world is something which you are 
encouraged to do under single-user mode... ]

-- 
-Chuck



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