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Date:      Wed, 13 Jun 2018 14:12:17 +0100
From:      Steve O'Hara-Smith <steve@sohara.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: How to detect single user mode in FreeBSD ?
Message-ID:  <20180613141217.a3ab7160a55398bf5ed56ef2@sohara.org>
In-Reply-To: <f66e1b62-a6d5-c969-78ca-3ae9eb82efc5@yandex.com>
References:  <e9731c0f-1269-8919-836a-29b9a2f6b0dc@yandex.com> <c0718db9-8b46-2301-a770-cd334cbf0f07@ShaneWare.Biz> <f66e1b62-a6d5-c969-78ca-3ae9eb82efc5@yandex.com>

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On Wed, 13 Jun 2018 18:04:08 +0530
Manish Jain <jude.obscure@yandex.com> wrote:

> Tx for replying. But don't you think there should ideally be a sysctl to 
> be detect the runlevel, particularly single user mode ? It makes things 

	The runlevel concept comes from sysV init, it isn't a BSD thing at
all. There isn't a real difference at all between single user and multi
user. Single user mode is really just one of two states - before enabling
ttys and running the rc scripts with start or after disabling the ttys and
running the rc.shutdown script. There's nothing special about it.

	If you feel a need to test for single user then you should probably
be testing for something else - such as whether a filesystem is mounted
before running fsck on it which is what really matters and is completely
independent of whether or not the system is running multi-user.

-- 
Steve O'Hara-Smith <steve@sohara.org>



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