[Bglug] Halt and poweroff

LP linuxpusher2 at gmail.com
Mon Jul 11 00:42:31 EDT 2016


Andrew, Bob,
Thanks



On 10 July 2016 at 15:08, Bob Jonkman <bjonkman at sobac.com> wrote:

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> The invocation that's always worked for me is
>
> shutdown -h -P
>
> which halts and powers off.
>
> And then I discovered "poweroff" which is much easier to type and
> remember.
>
> But /sbin/poweroff just seems to be a soft link to /bin/systemctl
> There must be some command line detection in systemctl to determine
> how it was invoked, and then to take different actions depending on
> the command used.
>
> - --Bob.
>
>
>
> - --
> Bob Jonkman <bjonkman at sobac.com>          Phone: +1-519-635-9413
> SOBAC Microcomputer Services             http://sobac.com/sobac/
> Software   ---   Office & Business Automation   ---   Consulting
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>
>
> On 2016-07-09 11:10 PM, Andrew Howlett wrote:
> > i checked the linux standard base core specification for the
> > shutdown command
> >
> > actually it says on page 393 that for the shutdown -h (halt) option
> > "actions after halting are unspecified (e.g. power off)"
> >
> >
> >> On 9 Jul 2016, at 9:32 PM, LP <linuxpusher2 at gmail.com> wrote:
> >>
> >> " it is systemd correctly implementing the commands"
> >>
> >> What does that mean about the commands we have been using ? Is
> >> there a place to compare the commands ?
> >>
> >>
> >>
> >>
> >> On 9 July 2016 at 16:31, LP <linuxpusher2 at gmail.com
> >> <mailto:linuxpusher2 at gmail.com>> wrote: I use to use "sudo
> >> shutdown", now it gives the response "use shutdown --help". "sudo
> >> poweroff" , works. How many other commands that I thought I knew
> >> have changed I wonder.
> >>
> >>
> >>
> >>
> >> On 9 July 2016 at 11:44, Andrew Howlett <andrew at howlett.net
> >> <mailto:andrew at howlett.net>> wrote: Hi guys
> >>
> >> I always use the halt command (sudo halt for ubuntu people) to
> >> turn off my box. Recently I noticed that halt stops the linux
> >> kernel but won't turn off the power. I thought maybe it's a ACPI
> >> problem. But no, actually it is systemd correctly implementing
> >> the commands. Halt closes the system but leaves it powered up.
> >> Poweroff or shutdown close and power off the system.
> >>
> >> Sent from my phone.
> >>
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> >>
> >>
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> >
> >
> >
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