1. GETTING STARTED USING LINUX UBUNTU FOR A MULTI-USER SYSTEM Team 4 Lab Coordinator Manager Presentation Prep Webmaster Document Prep Faculty Facilitator Billy Mattingly David Wilson Bret Charboneau Tim Haynie Andy Bruinsma Rama Mukkamala

2. Overview  Installing Ubuntu  Installing Updates  Downloading MDM  Using the Terminal  Configuring MDM

3. Installing Ubuntu  Versions  8.04 LTS (Hardy Heron)  9.04 (Jaunty Jackalope)  10.04 LTS (Lucid Lynx) Scheduled release April 29, 2010  Either 32 or 64 bit  We are using 8.04 LTS 32 bit

4. Installing Ubuntu  Can be installed in Windows  Can be installed from a flash drive or CD  Only 1 monitor can be connected during install

5. Installing Ubuntu

12. Adding Users

15. Installing Updates  Update Ubuntu using Update Manager

16. Installing Updates  Synaptic is used for installing packages

17. Installing Updates

18.  Install Nvidia-Settings and Open ssh Server

19. Nvidia-Settings

21. The Terminal

22. Common Terminal Commands  cd: change directory . (period): refers to the current directory .. (double period): refers to the parent directory  ls: list directory contents  man: see the manual for a command (‘q’ to exit)  mv and cp: move or copy a file  rm: remove (delete) a file  mkdir and rmdir: make and remove a directory  chown and chmod: change file owner and permissions (requires ownership or root access)  sudo: run a command as the root user

23. Common Terminal Commands  | (“pipe”): Send the output of one command as the input to another command  > : Send the output of a command to a file  & : Run a command in the background  grep: searches for patterns within text  ps: show all running processes  kill: end execution of a running process  ssh: connect and execute commands on a remote computer  less: show the contents of a text file, one page at a time  gedit, nano, vim: text editors (gedit has a GUI)

24. Changing Permissions  ls –l shows files, permissions, and owners  rwxr-xr-- haynieti somefile.txt  Think in terms of bits  First 3 bits represent file owner (111=7)  Second 3 bits represent group (101=5)  Final 3 bits represent everyone else (100=4)  To achieve these permissions, you would type:  chmod 754 somefile.txt

25. Installing MDM  First we need to allow permissions for the configuration files > sudo bash > chmod 777 /etc/X11 > chmod 777 /etc/X11/xorg.conf

26. Installing MDM  Use the terminal to install repositories  Repositories contain MDM installation files  Use the command “apt-get”

27. Installing MDM > gettext xserver-xephyr rccconf > git-clone http://git.c3sl.ufpr.br/pub/scm/multiseat/mdm.git http://git.c3sl.ufpr.br/pub/scm/multiseat/mdm.git > cd mdm/mdm > make > make install > cd..

28. Installing MDM > cd extra-modes/xephyr-gdm > make > make DESTDIR=/install > cd../../ > cd dependencies > apt-get build-dep libx11-6

29. Installing MDM  When using an Nvidia graphics card, the following patches are needed:  discover-devices  mdm-bin  mdm-start-seat

30. Installing MDM  The xorg.conf file is for the display settings in GDM  Copy the xorg.conf file into the MDM folder and rename it xorg.conf.mdm  We now have a display configuration file for MDM

31. Installing MDM  In order to change MDM files we need to change permissions  Chmod 777 /../../file name

32. xorg.conf.mdm  xorg.conf.mdm is MDM’s main configuration file  Allows computer to recognize ‘seats’

33. xorg.conf.mdm

35. Other MDM files

36. mdm-bin

37. Starting MDM  From the terminal:  /etc/init.d/gdm start  /etc/init.d/mdm start  At this point, MDM is started and each screen prompts the user to register a keyboard/mouse

38. Log Files  The overall MDM log file:

39. Log Files  Each seat also has it’s own log file

41. Questions ?