find date of last boot

[Polytropon]

On Thu, 7 Jun 2012 21:02:57 -0500 (CDT), Robert Bonomi wrote:
> > From owner-freebsd-questions at freebsd.org  Thu Jun  7 20:26:46 2012
> > Date: Thu, 07 Jun 2012 20:24:49 -0500
> > From: Chris <racerx at makeworld.com>
> > To: freebsd-questions at freebsd.org
> > Subject: Re: find date of last boot
> >
> > On 6/7/2012 8:14 PM, Chris Hill wrote:
> > Why create something that is already built in?
> > As I mentioned previously, the last command lists when the system was
> > rebooted.
> 
> Probably, because last does *not* reliably do so.  <grin>
> 
> To wit:
>  $ date
>  Thu Jun  7 20:59:44 CDT 2012
>  $ uptime
>  8:58PM  up 8 days, 22:30, 1 user, load averages: 0.07, 0.03, 0.01
>  $ last reboot
>  wtmp begins Tue Jun  5 17:00:58 CDT 2012
>  $
> 
> 'wtmp' has been rotated twice since the system was booted.

Maybe introducing something along the /etc/rc execution?
An /etc/rc.local entry like

	/bin/date "+%Y-%m-%d %H:%M:%S" > /var/log/thisboot.log

and then just look at the file. Requires at least one reboot
to take effect. :-)



-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...