Date: Wed, 26 Jan 2011 17:58:43 +0100 From: David Demelier <demelier.david@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Date of a FreeBSD installation Message-ID: <4D4052C3.9090106@gmail.com> In-Reply-To: <87sjwv2uj7.fsf@oak.localnet> References: <4D2F606D.6090407@gmail.com> <20110113232321.5857ad0f@gumby.homeunix.com> <AANLkTi=OQiL=r5ZxxfMtaf6DduPYM5B4Q4JVRsN466GK@mail.gmail.com> <20110114153212.GA21418@libertas.local.camdensoftware.com> <87sjwv2uj7.fsf@oak.localnet>
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On 14/01/2011 19:46, Carl Johnson wrote: > Chip Camden<sterling@camdensoftware.com> writes: > >> Quoth Carl Chave on Friday, 14 January 2011: >>>> I'd suggest looking at the Btimes of top level directories >>>> >>>> stat -f "%SB %N" /* >>> >>> Or how about just / as this ~15 minutes earlier than most of the >>> remaining top level directories >>> >>> >>> sodserve# stat -f "%SB %N" /* >>> Jan 9 04:54:21 2011 /COPYRIGHT >>> Jan 9 04:54:21 2011 /bin >>> Jan 9 04:54:21 2011 /boot >>> Dec 31 18:59:59 1969 /dev >>> Jan 9 04:54:21 2011 /etc >>> Jan 9 04:54:21 2011 /lib >>> Jan 9 04:54:21 2011 /libexec >>> Jan 9 04:54:21 2011 /media >>> Jan 9 04:54:21 2011 /mnt >>> Jan 9 04:54:21 2011 /proc >>> Jan 9 04:54:21 2011 /rescue >>> Jan 9 04:54:21 2011 /root >>> Jan 9 04:54:21 2011 /sbin >>> Jan 9 04:54:21 2011 /sys >>> Jan 9 04:48:39 2011 /tmp >>> Jan 9 04:48:45 2011 /usr >>> Jan 9 04:49:39 2011 /var >>> >>> sodserve# stat -f "%SB %N" / >>> Jan 9 04:39:59 2011 / >> >> For me, that gets the Nov 21 2009 date, which is earlier than my >> install date. >> >> So far, /etc/hostid and the /home symlink seem to be the winners. > > On my system /etc/hostid is several days later than my actual install > date, so that isn't always reliable. You might want to create a file > with the timestamp you want. The most likely time appears to me to be > the 'Created' time in /etc/rc.conf, as someone suggested earlier. The > following code will extract that and create a file with that timestamp. > I have checked it on my system, but use at your own risk. > > file=/etc/install_date > date=$(grep '^# Created: ' /etc/rc.conf | cut -c 12-80) > tdate=$(date -j -f "%a %b %d %H:%M:%S %Y" "$date" "+%Y%m%d%H%M.%S") > echo $date> $file > touch -t $tdate $file > chmod -w $file > chflags schange $file > I finally agreed for /home symlink. I've made a mistake. To be sure the link and not the directory /usr/home is touched the best to do is : # chflags -h uchg /home -h means "not following links" -- David Demelier
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