Install Raspian on a SD card by following the instructions in the Raspberry Pi documentation pages.

Open LXterminal on the desktop and run

raspi-config

to modify the following settings:

• Expand Filesystem
• Change User Password
• Internationalisation Options → Change Keyboard Layout
• Advanced Options → Hostname, Serial

The default is user Pi with root privileges and without password. First, login as root and assign root a password.

Add a new user, assign this user the same privileges as pi:

# adduser <user>
# usermod -G adm,dialout,cdrom,sudo,audio,video,plugdev,games,users,netdev,input,spi,gpio <user>

Check privileges are assigned correctly:

# id <user>

Remove super user privileges from Pi:

• Go to the end of sudoers file and comment out root elevation for Pi:

  # visudo
  #pi ALL=(ALL) NOPASSWD: ALL

• Remove user pi from group sudo in /etc/group and /etc/gshadow, so that the new user remains:

  # vim /etc/group
  sudo:x:27:<user>
  # vim /etc/gshadow
  sudo:x:27:<user>

Change autologon to the new <user>:

# vim /etc/lightdm/lightdm.conf
autologin-user=<user>

• Changing the default users password and creating addtional accounts

# apt-get install vim