Ubuntu – How to remove “Ubuntu Netbook Edition” option from the GDM session menu

1. Never allow any Temporary User without a password to gain Access Control of your computer! FIRST Make a policy to prevent the single user guest from making system wide changes open text editor gksu gedit /etc/polkit-1/localauthority/50-local.d/10-desktop-policy.pkla insert text

[guest-policy]
Identity=unix-user:guest
Action=*
ResultAny=no
ResultInactive=no
ResultActive=no

2. open terminal and start typing

sudo addgroup --system --quiet --gid 126 guest
sudo useradd -c Guest,,, -d /tmp/guest-home.UBUNTU -m -s /bin/bash -g guest guest
sudo usermod --uid 117 --gid 126 guest

to create blank password for this account:

sudo usermod --password U6aMy0wojraho guest

to create Not asked for password on login for this account:

sudo usermod --groups nopasswdlogin guest

Edit /etc/gdm/gdm.schemas type:

gksu gedit /etc/gdm/gdm.schemas

and add guest to greeter/Include default

    <schema>
      <key>greeter/Include</key>
      <signature>s</signature>
      <default>guest</default>
    </schema>

now sudo restart gdm

NOTE: you will no longer be abel login to guest sessions from user accounts this is the new guest session and you will only be able to login from login screen any changes to this account will remain on logout until the computer restarts.

to restore open terminal and type:

sudo userdel guest

then sudo restart gdm

to copy your settings for guest session

sudo cp -R ~/.gconf/desktop /etc/gconf/gconf.xml.system/
sudo cp -R ~/.gconf/apps /etc/gconf/gconf.xml.system/
sudo chmod 777 -R /etc/gconf/gconf.xml.system/desktop
sudo chmod 777 -R /etc/gconf/gconf.xml.system/apps

Judging by Gerry Carr's Canonical Blog post as of Ubuntu 11.04 there will no longer be separate Ubuntu versions.

One of the benefits of the direction that’s been taken with the next release of Ubuntu is that there is no longer a need for a separate netbook edition. The introduction of the new shell for Ubuntu means that we have a user interface that works equally well whatever the form factor of the PC. And the underlying technology works on a range of architectures including those common in netbook, notebooks, desktops or whatever you choose to run it on. Hence the need for a separate version for netbooks is removed.

Even the name will simply be Ubuntu instead of Ubuntu Desktop Edition in the future.