[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: FC5, And FC6 won't shutdown completely



On Thu, 2007-01-11 at 13:41 +0000, James Wilkinson wrote:
> Rick Stevens wrote:
> > 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!
> 
> If the computers are single-core, single-processor systems with no
> hyperthreading enabled, then it might also be worth trying to use APM
> rather than ACPI. That's done with the acpi=off kernel line parameter.
> (Linux uses ACPI unless it's not supported or turned off. If and only if
> ACPI is not enabled, then it tries enabling APM, unless *that's* turned
> off or not supported -- and APM can't work in SMP mode. You need one or
> the other to do a software power off).
> 
> If that works, then you've got a problem with the ACPI on your
> motherboards. Look for BIOS updates.
> 
> Hope this helps,
> 
> James.
But please explain why (in my case) only FC6 has this problem? I have
upgraded the BIOS but it is FC6 that leads to this problem so in my mind
it must be a problem with FC6 not the BIOS or the motherboard.
-- 
Aaron Konstam <akonstam sbcglobal net>


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]