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Date: Fri, 10 Dec 2010 14:20:11 +0600
From: Eugene Grosbein <egrosbein@rdtc.ru>
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To: Adam Vande More <amvandemore@gmail.com>
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Cc: freebsd-stable@freebsd.org
Subject: Re: /sbin/reboot
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On 10.12.2010 11:35, Adam Vande More wrote:

>> Why would you want it to be?   One really shouldn't be running /sbin/reboot
>> directly as part of normal operations.  shutdown does a graceful reboot if
>> and when operators need to perform  reboot.
>>
> 
> AFAIK, the only functional difference between the two is shutdown(8)
> notifies other logged in users of the impending shutdown.  I've used
> reboot(8) for a long time with no ill effects so I'd be interested to hear
> what you meant there.  Since an operator can use shutdown(8) to initiate the
> same shutdown sequence reboot(8) uses, it wouldn't seems to be a security
> based decision.

In short, one should use reboot/halt from single user mode
to avoid calling shutdown command sequences for non-running services.
For multi-user one should use shutdown to not miss these sequences.

Eugene Grosbein