[tz] Daylight saving in Trkey problem

Paul Eggert eggert at cs.ucla.edu
Fri Nov 4 19:00:55 UTC 2016

On 11/03/2016 11:16 PM, Caner Aydinbey wrote:
> i need to do sha512, i do as described but it doesnot work.

I guess Oracle's TZUpdater tool normally checks your tzdata updates 
against a central server maintained by Oracle, and verifies that your 
update matches a checksum on file with the central server. This prevents 
users from installing their own changes (and also poses some interesting 
privacy and security implications -- did you know about that central 

If I'm right, it sounds like you could fix things by running a shell 
command like this:

sha512sum tzdata2016g.tar.gz | awk '{print $1}' >tzdata2016g.tar.gz.sha512

just before running TZUpdater. Here 'sha512sum' is the GNU core 
utilities SHA-512 checksummer and 'awk' is POSIX Awk. The documentation 
is unclear about this, though. For clarity, please ask Oracle tech 
support, as this mailing list is a generic one and we aren't expert in 
Oracle's quirks.

You might also consider upgrading to 2016i instead of bothering with 2016g.

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