systemctl start apcupsd.service /var/log/apcupsd.events: Cannot create /etc/apcupsd/LCK.. serial port lock file: ERR=Permission denied apcupsd FATAL ERROR in apcupsd.c at line 285 Failed to acquire device lock file It starts if I change "LOCKFILE /etc/apcupsd" to "LOCKFILE /var/lock" in /etc/apcupsd/apcupsd.conf, like in F19 or F20.