[tz] Question about invalid timezone file: no timezone found in OlsonData

Joe Culler joe.culler at gmail.com
Mon Jun 14 12:01:12 UTC 2021


On Wed, Jun 9, 2021 at 12:00 AM Paul Eggert <eggert at cs.ucla.edu> wrote:

> On 6/8/21 7:14 AM, Joe Culler via tz wrote:
>
> > I have a program running on Yocto.  When it runs, I get an error:
> > /usr/share/zoneinfo/Israel: invalid timezone file: no timezone found in
> > OlsonData
> >
> > If I copy zoneinfo's directory from Linux distros (Debian, Ubutnu,
> > ArchLinux),
> > the program runs without an error.
> >
> > I downloaded tzdb-2021a.tar.lz and installed it, encountered the same
> > error.
> > Did I miss something?  Thanks.
>
> My guess from the diagnostic's wording is that it comes from the
> timezone-olson package for Haskell. If so, possibly you ran into
> timezone-olson bug #7
> <https://github.com/ygale/timezone-olson/issues/7>, which means that
> upgrading the current timezone-olson should fix your problem. If
> upgrading doesn't work, possibly a followup bug report there is in order.
>

Thank you Paul. My problem was solved by simply updating timezone-olson to
0.2.0.


> You might also try building your copy of tzdata with 'make
> ZFLAGS=-bfat', which will generate fatter TZif files that might work
> better with a buggy TZif reader. For Israel, your TZif file should grow
> from 1074 to 2388 bytes if you build it that way. I'm attaching copies
> of slim and fat TZif files for Israel, and you can use these copies to
> check your work. There's a bit more about fat and slim files for Haskell
> at <https://hackage.haskell.org/package/tzdata>.
>
> Yet another possibility is that /usr/share/zoneinfo/Israel simply isn't
> set up correctly. Typically it's a symbolic or hard link to
> /usr/share/zoneinfo/Asia/Jerusalem, and you can check that out. I don't
> know Yocto, but it's something like the following on Ubuntu:
>
> 514-day $ ls -li /usr/share/zoneinfo/Israel
> 1205004 lrwxrwxrwx 1 root root 14 Jan 27 08:51
> /usr/share/zoneinfo/Israel -> Asia/Jerusalem
> 515-day $ ls -liL /usr/share/zoneinfo/Israel
> 1194127 -rw-r--r-- 1 root root 2388 Jan 27 08:51 /usr/share/zoneinfo/Israel
> 516-day $ zdump -V -c 2021,2022 /usr/share/zoneinfo/Israel
> /usr/share/zoneinfo/Israel  Thu Mar 25 23:59:59 2021 UT = Fri Mar 26
> 01:59:59 2021 IST isdst=0 gmtoff=7200
> /usr/share/zoneinfo/Israel  Fri Mar 26 00:00:00 2021 UT = Fri Mar 26
> 03:00:00 2021 IDT isdst=1 gmtoff=10800
> /usr/share/zoneinfo/Israel  Sat Oct 30 22:59:59 2021 UT = Sun Oct 31
> 01:59:59 2021 IDT isdst=1 gmtoff=10800
> /usr/share/zoneinfo/Israel  Sat Oct 30 23:00:00 2021 UT = Sun Oct 31
> 01:00:00 2021 IST isdst=0 gmtoff=7200
>
> or the following on Fedora:
>
> 4-penguin $ ls -li /usr/share/zoneinfo/Israel
> 2494621 -rw-r--r--. 3 root root 2388 Jan 25 19:02
> /usr/share/zoneinfo/Israel
> 5-penguin $ find /usr/share/zoneinfo -inum 2494621
> /usr/share/zoneinfo/Israel
> /usr/share/zoneinfo/Asia/Jerusalem
> /usr/share/zoneinfo/Asia/Tel_Aviv
>
> with similar zdump output there.
>
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