Bug#815416: does not regenerate format files after installing hyphenation patterns

[Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>]

2016-02-21 16:15 GMT+03:00 Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>:
> 2016-02-21 16:09 GMT+03:00 Norbert Preining <preining@logic.at>:
>> Your logs clearly indicate that the formats were rebuilt:
>>
>>> Building latex-based formats --byhyphen
>>> /var/lib/texmf/tex/generic/config/language.dat.
>>> This may take some time... done.
>>
>> Can you run this command as root and send me the output?
>>
>>         fmtutil --sys --byhyphen /var/lib/texmf/tex/generic/config/language.dat
>>
>> I have no idea why the call above did not update the formats.
>
> Hmm, this is really strange:
>
> root@forlindon:~# fmtutil --sys --byhyphen
> /var/lib/texmf/tex/generic/config/language.dat
> fmtutil: fmtutil is using the following fmtutil.cnf files (in precedence order):
> fmtutil:   /usr/share/texmf/web2c/fmtutil.cnf
> fmtutil:   /usr/share/texlive/texmf-dist/web2c/fmtutil.cnf
> fmtutil: fmtutil is using the following fmtutil.cnf file for writing changes:
> fmtutil:   /etc/texmf/web2c/fmtutil.cnf
> fmtutil [INFO]: writing formats under /var/lib/texmf/web2c
> fmtutil [INFO]: did not find entry for
> byhyphen=/var/lib/texmf/tex/generic/config/language.dat, skipped
> fmtutil [INFO]: Disabled formats: 2
> fmtutil [INFO]: Not selected formats: 12
> fmtutil [INFO]: Total formats: 14
> fmtutil [INFO]: exiting with status 0

The following command works for me:

fmtutil --sys --byhyphen language.dat

-- 
With best wishes
Dmitry