On Sun, 23 Jan 2011, Robert Heller wrote: > To: CentOS mailing list <[email protected]> > From: Robert Heller <[email protected]> > Subject: Re: [CentOS] curious reboot output > > At Sat, 22 Jan 2011 19:49:18 -0800 CentOS mailing list <[email protected]> > wrote: > >> >> On Sat, Jan 22, 2011 at 7:06 PM, Robert Heller <[email protected]> wrote: >>> At Sat, 22 Jan 2011 21:40:57 -0500 CentOS mailing list <[email protected]> >>> wrote: >>> >>>> >>>> Hello list! >>>> >>>> ??I was just curious about the output of a command I typed. >>>> >>>> [root@LCENT02:~] #last reboot | head -1 >>>> reboot ?? system boot ??2.6.18-194.26.1. Wed Dec 29 20:03 ?? ?? ?? ?? >>>> (24+01:33) >>>> >>>> >>>> This is odd because this machine was rebuilt today (Saturday 1/22) in >>>> mid afternoon. Just curious how the output of this command could NOT >>>> know this? >>> >>> What was the hw clock set to on reboot? >>> >> >> When it's almost a month off, is this really relevant? I could see a >> timezone discrepancy making this relevant, maybe, but not three weeks. > > Unless the hardware clock was off for some reason (dead/weak BIOS > battery?). If you are running ntpd, it will sync up pretty quick, but > if the clock is wrong at boot time, that is what will be recorded in the > last database.
I replaced my M/B BIOS battery recently (amongst other things), and forgot to reset the BIOS date and time. When I restarted the machine fsck had a wobbly turn, about the filesystems not being checked since ~1970! So every partition got checked for no real reason! Learnt my lesson there! Kind Regards, Keith ----------------------------------------------------------------- Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] ----------------------------------------------------------------- _______________________________________________ CentOS mailing list [email protected] http://lists.centos.org/mailman/listinfo/centos
