Re: [WBEL-users] new DST on WBL 3.0...

Mike B. spake the following on 3/11/2007 1:40 PM:
> At 3/11/2007 02:01 PM, Jeff Lasman wrote:
>> On Sunday 11 March 2007 07:38 am, Robert Heller wrote:
>>
>> > What do I need to upgrade *besides* tzdata on a WBL 3.0 system to get
>> > it to recognize the new DST start date?
>>
>> Probably all you have to do is copy the right file
>> in /usr/share/zoneinfo and/or it's subdirectories to
>> your /etc/localtime file.  As always, make a copy of the old one first.
>> <snip>
>> That's the easy way; Mike B's info is good, but perhaps more than you
>> need <smile>.
> 
> That depends on whether the files in his /usr/share/zoneinfo tree
> include the 2007 changes to the timezones he cares about.  His question
> seemed to imply that they didn't, though his followup message later
> shows your guess was correct.
> 
> I'm in North America and mine (RH 7.2) did not have the updated zone
> info, since they predated the 2005 law that moved the start and end
> dates of DST.  They also didn't include a bunch of other zone changes
> from around the world. Getting the updated source data files and
> compiling them with zic, then moving the proper one into /etc/localtime
> worked fine though.  Anyone else running an older (built more than a
> couple of years ago) version of Linux might still benefit from the link
> I found.
> 
> Any idea why Linux doesn't use a symlink for /etc/localtime?  That would
> have let me skip the cp step and just build stuff in /usr/share/zoneinfo
> and be done with it.  I'm not a unix expert, but my understanding is
> that most unix versions use the symlink method for this.
> 
Something to do with the possibility of having /etc and /usr on different
physical partitions and both not being mounted in time.

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