> Date: Tuesday, November 24, 2015 22:48:30 +0800 > From: Siva Prasad Nath <shivaprasadnath21 at gmail.com> > To: CentOS mailing list <centos at centos.org>, centos-devel at centos.org > Subject: [CentOS] Unit networkmanager.service not loaded > > systemctl stop networkmanager returns Unit networkmanager.service > not loaded Hint -- try the: systemctl list-units | grep ... concept that you used previously and see what output you get. [sub-hint -- the *nix world is case sensitive.] This is a user (understanding) issue -- why are you including the "-devel" list? Don't.