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Date:      Thu, 14 Jun 2018 05:48:43 +0530
From:      Manish Jain <jude.obscure@yandex.com>
To:        JD <jd1008@gmail.com>, freebsd-questions@freebsd.org
Subject:   Re: How to detect single user mode in FreeBSD ?
Message-ID:  <19ab9197-de34-e853-a66f-da413a56f16d@yandex.com>
In-Reply-To: <5B21A915.3000209@gmail.com>
References:  <e9731c0f-1269-8919-836a-29b9a2f6b0dc@yandex.com> <c0718db9-8b46-2301-a770-cd334cbf0f07@ShaneWare.Biz> <f66e1b62-a6d5-c969-78ca-3ae9eb82efc5@yandex.com> <20180613141217.a3ab7160a55398bf5ed56ef2@sohara.org> <d4130902-917c-39d4-979a-87c3769bb620@kicp.uchicago.edu> <CALM2mEk9oVaswyAPLoe1G+gO1Ftyw0NOt_0eksn68m5mE0tHtQ@mail.gmail.com> <5B21A915.3000209@gmail.com>

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On 06/14/18 05:00, JD wrote:
> 
> 
> On 06/13/2018 05:20 PM, blubee blubeeme wrote:
>> On Wed, Jun 13, 2018, 22:49 Valeri Galtsev <galtsev@kicp.uchicago.edu>
>> wrote:
>>
>>>
>>> On 06/13/18 08:12, Steve O'Hara-Smith wrote:
>>>> 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.
>>>>
>>> Thanks, Steve, for great explanation!
>>>
>>> Being Linux refugee myself I know the gang from inside: we fall into
>>> wide spread of the spectrum, from learning hard (or re-learning and
>>> expanding knowledge in case of those of us who had a journey from UNIX
>>> to Linus and back) to actively demanding introduction into FreeBSD of
>>> familiar things: Linuxisms. Explanations like yours always are
>>> ultimately teach Linux refugees what FreeBSD is, and hopefully makes
>>> them (us ;-) stop demanding introduction of Linuxisms into FreeBSD.
>>>
>> I can't agree with you more. FreeBSD isn't a Linux distribution.
>>
>>
> To the original poster of this question:
> Does the command
> who -r
> still work in FBSD?
> 
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who -r returns error




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