On 28/04/16 13:29, Michael H wrote: > Hi List, > > [root at mail1 ~]# systemctl enable httpd > Failed to execute operation: Invalid argument > > I can disable and re-enable other services without issue, I'm also > seeing the same error when I run > > [root at mail1 ~]# systemctl enable mailman > Failed to execute operation: Invalid argument > > Any suggestions? > > Michael > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > [root at mail1 ~]# mv /etc/systemd/system/multi-user.target.wants/httpd.service . [root at mail1 ~]# systemctl enable httpd Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service. [root at mail1 ~]# mv /etc/systemd/system/multi-user.target.wants/mailman.service . [root at mail1 ~]# systemctl enable mailman Created symlink from /etc/systemd/system/multi-user.target.wants/mailman.service to /usr/lib/systemd/system/mailman.service. problem solved. Any ideas why this happened? Michael