on install: Unable to move the new CDB file into place

As it turns out: as root you can create the cache directory everywhere you want, but it can't be read by apache. I found cdb files in /tmp /var/www/html/cache /var/www/html/wiki/cache

all because of typos and wrong entries in LocalSettings.php and because I did not start >php maintenance/rebuildLocalisation.php after each edit

All is well now

-)
Ruud Habets (talk)12:16, 30 July 2015