[Integrit-users] how to make known db ?

[<svi...@ya...>]

hi, I have a problem to make the known db, look:
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downhill:~# integrit -cu -C /etc/integrit/integrit.conf
integrit: ---- integrit, version 3.02 -----------------
integrit:                      output : human-readable
integrit:                   conf file : /etc/integrit/integrit.conf
integrit:                    known db : /var/lib/integrit/known.cdb
integrit:                  current db : /var/lib/integrit/current.cdb
integrit:                        root : /
integrit:                    do check : yes
integrit:                   do update : yes
integrit (open_known_cdb): Error: opening known-state database 
(/var/lib/integrit/known.cdb): No such file or directory
downhill:~# ls -l /var/lib/integrit/
total 10080
-rw-r-----    1 root     root     10279535 Aug 24 02:48 current.cdb
downhill:~# grep -v ^# /etc/integrit/integrit.conf
root=/
known=/var/lib/integrit/known.cdb
current=/var/lib/integrit/current.cdb
 !/proc
--------------------------------------------------------------------

what's my mistake ?

Thx Luca.