How to login multiple users and desktop switch between sugar sessions
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 Before you begin
This page describes how to add a new user login, start a new sugar session using the new login, and switch desktops between two Sugar sessions that are running simultaneously.
 Adding a new user login
You'll want to get a root shell on the machine. Open the 'Terminal' activity on your XO, and type:
To add a new user login named "john", type:
useradd -c "John Smith" john
To set a password for john, type:
At the prompt, enter a password for john.
 Logging in as a new user
As described in Sugar Instructions, hold down Ctrl+Alt+F1 to leave the Sugar screen and go to the text console's login prompt. The F1 key on the XO is labeled with the neighborhood icon. At the login prompt, type in John's username and password.
 Starting a Sugar session from the console
After logging into the console as john, type:
startx /usr/bin/olpc-session -- :1 -fp built-ins -wr
 Desktop switching between Sugar sessions
Hold down Ctrl+Alt+F3 to switch back to the original "olpc" user's desktop. When you would like to switch back to the new "john" user's desktop, hold down Ctrl+Alt+F4.