Bug#719280: Error/warn: Config variable .... is not defined - Invalid Mutex directory in argument file:${APACHE_LOCK_DIR}

[Stefan Fritsch <sf@sfritsch.de>]

Am Sonntag, 18. August 2013, 11:16:30 schrieb Andre Verwijs:
> Jean-Michel Vourgère schreef op 16-08-13 05:15:
> > Hi André
> > 
> > Do you still have problems with apache2 not starting?
> > 
> > What is the output of:
> > service apache2 start
> > ?
> 
> with
> service apache2 start i'm getting  "OK"
> 
> but when startup with
> ./usr/sbin/apache2

This is not supposed to work. You have to use either the init script 
(via service) or /usr/sbin/apache2ctl. See 
/usr/share/doc/apache2/README.Debian.gz for more information.