Adding Users to Groups

Users must be added to cdrom, audio, video, scanner, plugdev and power groups. To achieve this run below command as root for each group. # gpasswd -a user group For example; # gpasswd -a ertan plugdev adds user ertan to group plugdev. Manually editing /etc/group file as root, one can add one or more users to a specified group also. # nano /etc/group ... audio:x:17:root,user1,user2 video:x:18:root,user1,user2 cdrom:x:19:root,user1,user2 ... * It is seen that user1 and user2 are the members of audio,video and cdrom groups.