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Subject: Re: Date of a FreeBSD installation
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On 13/01/2011 21:28, David Demelier wrote:
> Hello folks,
>
> I'm just guessing if there is a way to know a FreeBSD installation date.
> We can't look after the uname -a ident since an update of the FreeBSD
> kernel is possible.

If you haven't removed it, a line in /etc/rc.conf should be written by 
sysinstall at system install time:

# -- sysinstall generated deltas -- # Sun Sep 14 16:13:22 2008

On a newer system (7+?), the timestamp of /etc/hostid would be from the 
first boot.