Daylight Saving Time (DST)

jdow jdow at earthlink.net
Mon Mar 12 13:17:00 UTC 2007


From: "Jakub Jelinek" <jakub at redhat.com>

> On Mon, Mar 12, 2007 at 05:44:33AM -0700, jdow wrote:
>> And  I had quite unreasonably, perhaps, presumed the FC4 TZ update not 
>> all
>> that long ago handled the changes. But apparently not. So I went and 
>> found
>> the
>> FC6 tzdata file, performed a rpmbuild -bi on it. Watched it fail. Took 
>> its
>> time
>> zone information from:
>> /var/tmp/tzdata-root/usr/share/zoneinfo/America/Los_Angeles
>> and copied it to:
>> /usr/share/zoneinfo/America/Los_Angeles
>> Then I copied that to /etc/localtime
>>
>> Bingo - updated. The Fedora folks are worse than the Microsoft folks on 
>> this
>> one. Simple fix on a relatively (to W2K) OS and nobody made it. At least 
>> the
>> W2K lack of fix is for a very old offering. Ah well, a little persistence
>> fixed it
>> once I noticed the time had not updated properly.
>
> This has been answered many times on various mailing lists already.
> There have been 8 different FC4 tzdata updates released that have uptodate
> America/Los_Angeles timezone data (2005m-1.fc4 and up), so unless you 
> never
> ran yum update, you surely had it installed already.  Even if there were
> none, you jus can install fc6 or rawhide tzdata, it will install on FC4 
> just
> fine, you don't need to bother rebuilding it.  You haven't said how it
> failed, it certainly builds here even for RHEL3 which is much older.
>
> All you need to do in FC4 is rerun system-config-date, because FC4
> glibc-common didn't have /usr/sbin/tzdata-update %trigger on tzdata.
> Or run
> . /etc/sysconfig/clock
> cp /usr/share/zoneinfo/$ZONE /etc/localtime

Yum update never picked up the updates - or else failed to get them
properly installed. The last time I ran yum update was a week ago.

(I also noticed it did not require a system reboot to make it work,
either. Drop the right file into /etc/localtime and bingo.)

{^_^} 




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