To ease coordination with anacron, the invocation of the run-parts for the /etc/cron.daily, /etc/cron.weekly, and /etc/cron.monthly directories was changed to the form test -e /usr/sbin/anacron || run-parts --report /etc/cron.daily What this means is that if anacron has been installed, it will be responsible for running those scripts. This is the standard configuration of anacron: if you simply install both cron and anacron, things will work as expected. However, if you have modified your anacron configuration (/etc/anacrontab), you may need to re-adjust it in order to accommodate this change.