My Linux box does not shutdown i do when i do /sbin/shutdown -h now

yawe_frek · 09-12-2007, 04:42 AM

hi guys,

i tend to be having a little probelm with my new Pentuim D. When ever i shutdown with this command (shutdown -h now), my system does not shutdown as in i mean power off. Any idea why?

Thanks

SlackerLX · 09-12-2007, 04:50 AM

Quote:

Originally Posted by yawe_frek

hi guys,

i tend to be having a little probelm with my new Pentuim D. When ever i shutdown with this command (shutdown -h now), my system does not shutdown as in i mean power off. Any idea why?

Thanks

$su -

#poweroff

yawe_frek · 09-12-2007, 04:57 AM

hi,

su - what is this suppose to do. i am already root.

Thanks

SlackerLX · 09-12-2007, 07:53 AM

Quote:

Originally Posted by yawe_frek

hi,

su - what is this suppose to do. i am already root.

Thanks

-, -l, --login
make the shell a login shell

As long as you're already root, "poweroff" command shall do the trick

Cheers

yawe_frek · 09-12-2007, 09:46 AM

thanks SlackerLX,

i will try poweroff and get back.

Thanks

tzp · 09-14-2007, 05:13 AM

I had the same problem.
I used an own compiled SMP kernel (it's a dual core machine) with APM and ACPI support.
When looking at the startup log (run dmesg) I could see that when ACPI is started, it disables APM. Further on APM poweroff is disabled for multicore CPU-s anyhow, as it is considered not SMP-safe. (I don't know why.)

The solution was that I disabled ACPI and enabled APM power off even for SMP. I think the kernel boot parameters for that were acpi=off apm=smp.

But then shutdown -h worked

I used the 2.6.20 kernel.

The list of kernel parameters can be found in the file Documentation/kernel-parameters.txt. Search for acpi and apm. The latter will redirect you to arch/i386/kernel/apm.c where you can see this:

Code:

/*
 * See Documentation/Config.help for the configuration options.
 *
 * Various options can be changed at boot time as follows:
 * (We allow underscores for compatibility with the modules code)
 *	apm=on/off			enable/disable APM
 *	    [no-]allow[-_]ints		allow interrupts during BIOS calls
 *	    [no-]broken[-_]psr		BIOS has a broken GetPowerStatus call
 *	    [no-]realmode[-_]power[-_]off	switch to real mode before
 *	    					powering off
 *	    [no-]debug			log some debugging messages
 *	    [no-]power[-_]off		power off on shutdown
 *	    [no-]smp			Use apm even on an SMP box
 *	    bounce[-_]interval=<n>	number of ticks to ignore suspend
 *	    				bounces
 *          idle[-_]threshold=<n>       System idle percentage above which to
 *                                      make APM BIOS idle calls. Set it to
 *                                      100 to disable.
 *          idle[-_]period=<n>          Period (in 1/100s of a second) over
 *                                      which the idle percentage is
 *                                      calculated.
 */

PS. I'm pretty sure that you can find a more sophisticated solution than disabling the whole ACPI.

fusilier · 09-14-2007, 07:48 AM

Try passing the "-p" option to the shutdown command. That (if supported) will power off the system.