Package: mediawiki
Version: 1:1.19.5-1
Severity: normal
As previously reported, README.Debian is mostly broken or outdated. However,
one particularly bad part caused a serious problem on my install when I
upgraded mediawiki.
Then just copy the generated config to the real system location :
mv /var/lib/mediawiki/mw-config/LocalSettings.php \
/etc/mediawiki
This is outdated (see
https://github.com/wikimedia/mediawiki-core/commit/edd12f0fd60c740673c58919d10cf62e39b74442).
This caused me to proceed with the install this way (391-403 for this step):
389 nano /etc/mediawiki/apache.conf
390 invoke-rc.d apache2 reload
391 mv /var/lib/mediawiki/config/LocalSettings.php /etc/mediawiki
392 #mv /var/lib/mediawiki/mw-config/index.php /etc/mediawiki
393 cd /etc/mediawiki
394 ls
395 mv /tmp/LocalSettings.php /etc/mediawiki
396 less /var/log/apache2/error.log
397 #mv LocalSettings.php /var/lib/mediawiki/
398 less /var/log/apache2/error.log
399 mv LocalSettings.php /var/lib/mediawiki/
400 less /var/log/apache2/error.log
401 ls /var/lib/mediawiki/LocalSettings.php
402 stat /var/lib/mediawiki/LocalSettings.php
403 chown www-data: /var/lib/mediawiki/LocalSettings.php
In other words, when MediaWiki failed to obtain access to LocalSettings.php, I
guessed the README was using an old LocalSettings.php location and the new
location was now directly the path mentioned in the README without the config/
(/var/lib/mediawiki/). I moved LocalSettings.php there (overwriting the symlink
without realizing), and only then fixed the permission problem. At the next
upgrade, dpkg quietly turned my LocalSettings.php into a broken symlink,
causing both a disruption of service and a limited data loss.
Besides updating the README, there are of course other measures which would
avoid this scenario:
* Make the code directly read /etc/mediawiki/ and drop the confusing symlinks,
no longer needed
* Just save the generated LocalSettings.php where it has to go directly
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