Re: FC5, And FC6 won't shutdown completely

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On Wed, 2007-01-10 at 22:13 +0100, Nigel Henry wrote:
> Both myself, and Aaron Konstram are having problems with the complete shutdown 
> of our machines. I am running FC5, and since some updates to FC5, kernels 
> later than the original kernel installed from the CDROM refuse to shutdown 
> cmpletely. The shutdown messages reach "power off" then nothing, and you have 
> to press, and hold the start button on the PC to switch the machine off. When 
> shutdown reaches the power off stage, I hear the harddrives spin down, but 
> the machine is still active.
> 
> these ar the kernels on my FC5:
> 2.6.15-1.2054_FC5  (this one shutsdown ok)
> but all of these refuse to shutdown completely:
> 2.6.17-1.2174_FC5
> 2.6.17-1.2187_FC5
> 2.6.18-1.2200_FC5
> 2.6.18-1.2239_FC5
> and
> 2.6.18-1.2257_FC5
> 
> I have been googling, and found suggestions to use "lapic" . I'm not sure how 
> to use it. I tried at the grub prompt for the kernel, using "lapic", or 
> lapic=on" (without the double quotes) , but no success.
> 
> Anyone have any suggestion how to use lapic, or even if this might solve the 
> problem?

All you need to do is append "lapic" to the kernel line in grub:

	kernel /boot/vmlinuz-2.6.18-1.2869.fc6 ro root=LABEL=/ rhgb
	quiet lapic

(all on one line).  That may not solve your issue.  You may need to use
"noapic" instead:

	kernel /boot/vmlinuz-2.6.18-1.2869.fc6 ro root=LABEL=/ rhgb
	quiet noapic

(again, all on one line) to turn off your APIC.  It really rather
depends on just how compliant your BIOS is with the APM or ACPI
specifications.  It always stuns me just how badly some of these
standards are implemented.  Do they even read the specs?  This ain't
rocket science (and yes, I was a rocket scientist at JPL).  Sheesh!

----------------------------------------------------------------------
- Rick Stevens, Senior Systems Engineer     rstevens@xxxxxxxxxxxxxxx -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-                       When in doubt, mumble.                       -
----------------------------------------------------------------------

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