Kernel Boot Option Question

[Joseph Salisbury]

On 02/25/2011 05:23 PM, Herton Ronaldo Krzesinski wrote:
> On Fri, Feb 25, 2011 at 04:25:56PM -0500, Joseph Salisbury wrote:
>> Hello,
>>
>> There seems to be an issue when a motherboards CMOS clock reports a time
>> and date older than the one that was recorded during the last successful
>> boot.  When this happens the system will fail to boot.
>>
>> Is there a way to get the kernel to ignore a bad date and time from the
>> BIOS at boot up, or an option to disable this check entirely?
> 
> Well, just the fact of CMOS clock going backwards causing a subsequent
> boot to fail is odd, it shouldn't happen and I think it's not the real
> cause, may be a side effect of another issue.
> 
> Do you have more details about the issue and machine where this happens,
> environment, etc.?

It happens on all the machines I've tried.  The one I have next to me is
a netbook running Natty, but this also happens on Maverick and Lucid.
It appears to be related to fsck.  I changed the date in my bios to be a
month ahead, it boots once, but then a reboot triggers the fsck and the
system then hangs.  Attached is a screen shot from a system having this
issue.

The easy solution is to ensure the bios clock is set properly.  I was
wondering if there is a boot option to disable the kernel from checking
the bios clock, but maybe this needs to be done for specific reasons.


> 
>>
>> Thanks,
>>
>> Joe
>>
>> -- 
>> kernel-team mailing list
>> kernel-team at lists.ubuntu.com
>> https://lists.ubuntu.com/mailman/listinfo/kernel-team
>>
> 
> --
> []'s
> Herton

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