System poweroff

System poweroff

[siva]

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Hi,

My system is not getting powered off, if I issue a poweroff / halt -p  / init 0 command. Instead it is shutdowns the system and stops after displaying the following message "Power down". I haven't installed any of the power management (APM / ACPI) option in my kernel.

Is it because of that ?

Thanks,
-Siva

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Imagination is more important than Knowledge"
                               - Albert Einstein
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Re: System poweroff

[Marc-Christian Petersen]

On Monday 30 June 2003 13:29, siva wrote:

Hi Siva,

> My system is not getting powered off, if I issue a poweroff / halt -p  /
> init 0 command. Instead it is shutdowns the system and stops after
> displaying the following message "Power down". I haven't installed any of
> the power management (APM / ACPI) option in my kernel.
> Is it because of that ?
rotfl. Another troll?

ciao, Marc



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Re: System poweroff

[Frank Mehnert]

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On Monday 30 June 2003 13:29, siva wrote:
> My system is not getting powered off, if I issue a poweroff / halt -p  /
> init 0 command. Instead it is shutdowns the system and stops after
> displaying the following message "Power down". I haven't installed any of
> the power management (APM / ACPI) option in my kernel.
>
> Is it because of that ?

Yes, it is.

Frank
-- 
## Dept. of Computer Science, Dresden University of Technology, Germany ##
## http://os.inf.tu-dresden.de/~fm3                                     ##

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Re: System poweroff

[Yaroslav Rastrigin]

Hi !
Marc-Christian Petersen wrote:
> On Monday 30 June 2003 13:29, siva wrote:
> 
> Hi Siva,
> 
> 
>>My system is not getting powered off, if I issue a poweroff / halt -p  /
>>init 0 command. Instead it is shutdowns the system and stops after
>>displaying the following message "Power down". I haven't installed any of
>>the power management (APM / ACPI) option in my kernel.
>>Is it because of that ?
> 
> rotfl. Another troll?
No, sir. One more clueless newbie. Just like you and I were some time ago.
Please, be patient and tolerable.

Siva:
Yes, that's because you haven't installed neither APM nor ACPI. I would
recommend to try APM first - it's less buggy at the moment.

With all the best, yarick at relex dot ru




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Re: System poweroff

[siva]

Hi.

Thanks for the reply.

I do not want to use all the features of the APM (such suspend states) ...I
just want to use the feature of powering off the system completely while run
the "poweroff / halt -p" commands.
So it is possible to do this without enabling the APM /ACPI, just by adding
some lines of code in the Kernel.

Any idea?

Thanks,
Siva

----- Original Message -----
From: "Yaroslav Rastrigin" <yarick-343whMTK1pU@public.gmane.org>
To: "ACPI-Devel mailing list" <acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Sent: Monday, June 30, 2003 5:40 PM
Subject: Re: [ACPI] System poweroff


> Hi !
> Marc-Christian Petersen wrote:
> > On Monday 30 June 2003 13:29, siva wrote:
> >
> > Hi Siva,
> >
> >
> >>My system is not getting powered off, if I issue a poweroff / halt -p  /
> >>init 0 command. Instead it is shutdowns the system and stops after
> >>displaying the following message "Power down". I haven't installed any
of
> >>the power management (APM / ACPI) option in my kernel.
> >>Is it because of that ?
> >
> > rotfl. Another troll?
> No, sir. One more clueless newbie. Just like you and I were some time ago.
> Please, be patient and tolerable.
>
> Siva:
> Yes, that's because you haven't installed neither APM nor ACPI. I would
> recommend to try APM first - it's less buggy at the moment.
>
> With all the best, yarick at relex dot ru
>
>
>
>
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> Acpi-devel mailing list
> Acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> https://lists.sourceforge.net/lists/listinfo/acpi-devel



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Re: System poweroff

[David Woodhouse]

On Mon, 2003-06-30 at 13:21, siva wrote:
> Hi.
> 
> Thanks for the reply.
> 
> I do not want to use all the features of the APM (such suspend states) ...I
> just want to use the feature of powering off the system completely while run
> the "poweroff / halt -p" commands.
> So it is possible to do this without enabling the APM /ACPI, just by adding
> some lines of code in the Kernel.

Yes, you can do this if you really want to, but you need sufficient
documentation for your motherboard and chipset. You need to work out how
to make it tell the PSU to turn itself off.

You may be able to work this out by reverse-engineering the APM BIOS or
ACPI bytecode. There's nothing _special_ about them that makes them able
to turn the machine off -- they're only software, it's just that they're
binary-only software to which we don't have the source.

There's no fundamental reason why you shouldn't be able to write a
proper Linux driver; it's just that like so many other things with only
binary-only driver code, we don't seem to be able to get sufficient
documentation for it.

-- 
dwmw2



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RE: System poweroff

[SIVAKUMAR SUBRAMANI]

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Re: System poweroff

[Matthew Wilcox]

Can we have all-html mail blacklisted?  It's mostly spam anyway.

On Mon, Jun 30, 2003 at 07:34:53PM +0530, SIVAKUMAR SUBRAMANI wrote:

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk


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Re: System poweroff

[Ducrot Bruno]

On Mon, Jun 30, 2003 at 01:38:19PM +0100, David Woodhouse wrote:
> On Mon, 2003-06-30 at 13:21, siva wrote:
> > Hi.
> > 
> > Thanks for the reply.
> > 
> > I do not want to use all the features of the APM (such suspend states) ...I
> > just want to use the feature of powering off the system completely while run
> > the "poweroff / halt -p" commands.
> > So it is possible to do this without enabling the APM /ACPI, just by adding
> > some lines of code in the Kernel.
> 
> Yes, you can do this if you really want to, but you need sufficient
> documentation for your motherboard and chipset. You need to work out how
> to make it tell the PSU to turn itself off.
> 
> You may be able to work this out by reverse-engineering the APM BIOS or
> ACPI bytecode. There's nothing _special_ about them that makes them able
> to turn the machine off -- they're only software, it's just that they're
> binary-only software to which we don't have the source.

For ACPI, you are wrong.

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.


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Re: System poweroff

[David Woodhouse]

On Mon, 2003-06-30 at 15:53, Ducrot Bruno wrote:
> > You may be able to work this out by reverse-engineering the APM BIOS or
> > ACPI bytecode. There's nothing _special_ about them that makes them able
> > to turn the machine off -- they're only software, it's just that they're
> > binary-only software to which we don't have the source.
> 
> For ACPI, you are wrong.

Would you care to elaborate upon that rather terse contradiction of
common sense?

-- 
dwmw2



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Re: System poweroff

[Ducrot Bruno]

On Mon, Jun 30, 2003 at 04:46:43PM +0100, David Woodhouse wrote:
> On Mon, 2003-06-30 at 15:53, Ducrot Bruno wrote:
> > > You may be able to work this out by reverse-engineering the APM BIOS or
> > > ACPI bytecode. There's nothing _special_ about them that makes them able
> > > to turn the machine off -- they're only software, it's just that they're
> > > binary-only software to which we don't have the source.
> > 
> > For ACPI, you are wrong.
> 
> Would you care to elaborate upon that rather terse contradiction of
> common sense?
> 

Could you read ACPI specification before answering even if you 
think that is 'common sense'?

-- 
Ducrot Bruno

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.


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RE: System poweroff

[Allen_Lee-uiv9WLrdKoDQT0dZR+AlfA]

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I also want to study how to make “shutdown” in kernel mode.
Before, I try to trace “shutdown” source code but it seems not a good
method after spending some time on it. Does everyone have better idea?
Allen
 
-----Original Message-----
From: SIVAKUMAR SUBRAMANI [mailto:sivakumar.subramani-uxC5H9eHYlcAvxtiuMwx3w@public.gmane.org] 
Sent: Monday, June 30, 2003 10:05 PM
To: David Woodhouse
Cc: Yaroslav Rastrigin; ACPI-Devel mailing list
Subject: RE: [ACPI] System poweroff
 
Yes, Your right. I need exactly the same thing, just a kernel module that
helps me to shutdown my PC. Since I am not using laptop, I am not much
worried about the power saving. I just want to do a complete poweroff, while
I issue a poweroff command. 
 
Let me try out the Reverse engineering policy to write a kernel module that
just helps me to power-off the system with out having the support of apm in
the kernel.
 
Any help with regard to this are welcomed.
 
Thanks,
Siva
 
-----Original Message----- 
From: David Woodhouse [mailto:dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org] 
Sent: Mon 6/30/2003 6:08 PM 
To: SIVAKUMAR SUBRAMANI 
Cc: Yaroslav Rastrigin; ACPI-Devel mailing list 
Subject: Re: [ACPI] System poweroff
On Mon, 2003-06-30 at 13:21, siva wrote:
> Hi.
>
> Thanks for the reply.
>
> I do not want to use all the features of the APM (such suspend states)
...I
> just want to use the feature of powering off the system completely while
run
> the "poweroff / halt -p" commands.
> So it is possible to do this without enabling the APM /ACPI, just by
adding
> some lines of code in the Kernel.

Yes, you can do this if you really want to, but you need sufficient
documentation for your motherboard and chipset. You need to work out how
to make it tell the PSU to turn itself off.

You may be able to work this out by reverse-engineering the APM BIOS or
ACPI bytecode. There's nothing _special_ about them that makes them able
to turn the machine off -- they're only software, it's just that they're
binary-only software to which we don't have the source.

There's no fundamental reason why you shouldn't be able to write a
proper Linux driver; it's just that like so many other things with only
binary-only driver code, we don't seem to be able to get sufficient
documentation for it.

--
dwmw2
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