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Re: [sysvinit-devel] Could not determine runlevel
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From: |
Jesse Smith |
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Subject: |
Re: [sysvinit-devel] Could not determine runlevel |
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Date: |
Wed, 13 Jun 2018 17:29:48 -0300 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 |
On 06/13/2018 05:01 PM, Matias Fonzo wrote:
> According to init(8):
>
> [..]
>
> ENVIRONMENT
> Init sets the following environment variables for all its children:
>
> RUNLEVEL
> The current system runlevel.
> [..]
>
> Probably there is no need to write/read such file...
>
While that is true, in this case reboot/halt would not be a direct child
of init. If you have a shell open and run "echo $RUNLEVEL" you will
probably find the variable is not set, unless your shell is a direct
descendant of init. That is why I think having the value stored in a
specific, non-volatile location.