Ubuntu 11.10 and earlier
By default the sudo
group is not used in Ubuntu:
- the user created during installation belongs to
admin
group, not sudo
;
- no guide or manual I ever read advices to use the
sudo
group;
- no one feels the need to use the
sudo
group, because the admin
group can do all one needs.
Conversely, on Debian the group enabled in /etc/sudoers
is the sudo
group, and there is no admin
group. But the user created during installation is not put in that group, because Debian has the root
account enabled. You should do it explicitly, if you want to.
Also, Fedora is similar to Debian, having root
enabled and no default privileges for the user create during installation. But the administrative group configured in /etc/sudoers
is the more traditional group wheel
.
In conclusion, I think there is no use for sudo
group in Ubuntu, simply it is a Debian heritage.