Debian: xline.db directory is not created upon package installation.
Created by: dijit
Wed Sep 16 09:09:45 2015: ANNOUNCEMENT: database: cannot create new db: No such file or directory (2)
Related: https://github.com/inspircd/inspircd/issues/982
/quote unloadmodule m_xline_db.so
~:# mkdir -p /usr/lib/inspircd/data
/quote loadmodule m_xline_db.so
is the manual fix.