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Getting Started Using Linux Ubuntu for a Multi-User System

Lab Coordinator Manager Presentation Prep Webmaster Document Prep Faculty Facilitator. Billy Mattingly David Wilson Bret Charboneau Tim Haynie Andy Bruinsma Rama Mukkamala. Getting Started Using Linux Ubuntu for a Multi-User System . Team 4. Overview. Installing Ubuntu

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Getting Started Using Linux Ubuntu for a Multi-User System

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  1. Lab Coordinator Manager Presentation Prep Webmaster Document Prep Faculty Facilitator Billy Mattingly David Wilson Bret Charboneau Tim Haynie Andy Bruinsma Rama Mukkamala Getting Started Using Linux Ubuntu for a Multi-User System Team 4

  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

  6. Installing Ubuntu

  7. Installing Ubuntu

  8. Installing Ubuntu

  9. Installing Ubuntu

  10. Installing Ubuntu

  11. Installing Ubuntu

  12. Adding Users

  13. Adding Users

  14. Adding Users

  15. Installing Updates • Update Ubuntu using Update Manager

  16. Installing Updates • Synaptic is used for installing packages

  17. Installing Updates

  18. Installing Updates • Install Nvidia-Settings and Open ssh Server

  19. Nvidia-Settings

  20. 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 > 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

  34. 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

  40. Questions ?

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