Default groups assigned to the first user in Ubuntu Server 8.04?

Solution 1:

Michael's answer was the closest, but I wanted to be sure, so I installed a fresh copy of Ubuntu Server 8.04.2 (Hardy Heron) in a virtual machine to get the official group list. The installation was a basic one with no specific server roles selected. These are the first groups, assigned by default, to the first user:

• $USERNAME (e.g. wayne) (primary group - the rest are supplementary groups)
• adm
• dialout
• cdrom
• floppy
• fuse
• audio
• dip
• video
• plugdev
• sambashare
• lpadmin
• admin

To assign these groups to a given user, issue the following command:

sudo usermod -a -G adm,dialout,cdrom,floppy,audio,dip,fuse,video,plugdev,scanner,sambashare,lpadmin,admin

The -a switch means "append" so that existing supplementary groups are not overwritten.

To get a list of groups assigned to a particular user:

cat /etc/group | grep <username> 

or for the current user:

groups

Solution 2:

From here, the default groups for the first user on an Ubuntu box are:

• $USERNAME (Primary)
• adm
• dialout
• cdrom
• floppy
• audio
• dip
• video
• plugdev
• scanner
• netdev
• lpadmin
• powerdev
• admin

Solution 3:

For Ubuntu 14.04 LTS:

$USERNAME adm cdrom sudo dip plugdev lpadmin sambashare