Problem when shutting down

[Ian MacGregor]

Ian MacGregor wrote:
>> On Sun, 2005-10-16 at 09:35 -0700, Ian MacGregor wrote:
>>
>>> When I shutdown my computer, the system hangs while trying to set the 
>>> hardware clock. This requires me to manually reset the power switch 
>>> and, upon reboot, the time and date are wrong. I have set the correct 
>>> date and time n the computer BOIS, so FC4 does not need to do this. 
>>> How do I stop FC4 from setting the hardware clock to the OS time when 
>>> shutting down or rebooting? I am thinking that this would solve the 
>>> hanging problem upon shutdown/reboot.
>>>
>>> Ian M.
>>>
>>
>> This may be a problem, but the HW clock needs set with shutdown because
>> it almost never is exactly accurate when the system has been running for
>> a while.  In general, the time for the OS is set from the HW clock at
>> boot time, and the time for the HW is set from the OS at shutdown.  An
>> actual hang here can imply a problem, but definitely says that the OS
>> and BIOS are not playing nice.  Do you perchance have the BIOS set to
>> not allow it to be changed as some virus protection schemes do?  If the
>> OS cannot write to the bios it presumable could cause a hang.
>>
>> The other real question otherwise is "Does it actually hang - forever -
>> during shutdown?  or does it just take a long time and you get impatient
>> and power off without having it complete?"  If the latter, try waiting
>> for a while to see if it will finish.  If the former then it may
>> actually be a problem and may warrant looking at the bios virus
>> protection scheme as a start point.
>>
>> You say the date and time are wrong when you start up.  That implies the
>> date and time are incorrect in BIOS or that you have the timezone set
>> wrong, so the date & time are actually correct but for a different time
>> zone.  It may also be that you told the system the bios is set to UCT
>> when it is in fact set to local time, which would change the time in the
>> OS at startup.
> 
> Wow, Jeff, thank you for all of that info. I will definitely be looking 
> into each and every point you made. I'll post when I figure out what is 
> happening. This is the first mailing list that I have joined that DIDN'T 
> suck out loud.
> 
> Thank you very much.
> 
> Ian M.
I probably should have mentioned that this problem only occurs after a 
few days of uptime. It doesn't happen at all if I reboot/shutdown within 
24 hours of the previous reboot/shutdown. I just did a reboot and the 
system is fine, so somehow there is something happening after a few days 
of uptime that affects the reboot/shutdown.

I'll keep an eye on it and see what happens.

Ian M.

> 
>>
>> HTH
>> Jeff
>>
>