The issue is easily described, the daily cronjob causes following mails for me on a CentOS 5.5 machine: /etc/cron.daily/etckeeper: etckeeper warning: hardlinked files could cause problems with git: sysconfig/network-scripts/ifcfg-eth0 sysconfig/networking/devices/ifcfg-eth0 sysconfig/networking/profiles/default/hosts sysconfig/networking/profiles/default/resolv.conf sysconfig/networking/profiles/d