[Bglug] Halt and poweroff

Andrew Howlett andrew at howlett.net
Sat Jul 9 23:10:57 EDT 2016


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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