Boot from a LiveCD

1
Boot from a LiveCD
2
What is a LiveCD

• Normally, OS is installed on the local disk and
  then will be loaded from harddisk.
• However, OS can also be directly put into memory
  and running from there without harddisk.
• LiveCD has everything an OS needed to run and
  when booting from a CD-ROM, the OS will be loaded
  from the CD and directly into memory.

3
BIOS Configure the Boot Sequence

• BIOS is where you can basically configure your
  hardware
• i.e.   CPU
•         Onboard clock
•         Disk etc.
• HOWTO
• 1. Press "F12" (computer-dependent)
• 2. Choose "System Setup"
• 3. Browse around and look for "Boot Sequence"
• 4. Press "ESC" to exit

4
Linux Distributions

• Linux is an open source Operating System(OS). 
• There are many people favorite in customizing
  Linux in different look. So there are many
  different versions of Linux. We call them Linux
  Distributions
• Gentoo
• Debian
• Ubuntu
• Fedora
• Mandriva
• Suse
• etc...
•  

5
Looking for a Linux?

• All are online, available, free!
• Ubuntu  http//www.ubuntu.com/
• Fedora http//fedoraproject.org/
• Gentoo  http//www.gentoo.org/
• More? Just google it. They are really popular and
  easy to find!
• Here is  an shortcut for Potsdam folks
•              http//mirror.clarkson.edu/

6
Burn a LiveCD

• Find a LiveCD image(.iso) and download it
•      at http//mirror.clarkson.edu/distributions.h
  tml
• Burn a LiveCD image into a blank CD/DVD
•         CD--- 700MBytes
•       DVD--- 4.7GBytes     (1G 1024M)
• HOWTO
• 1. Physically put a blank CD/DVD into the burner
• 2. Find the disc image file(.iso)
• 3. Right click the disc image and click "Open
  with Brasero"
• 4. Select the disc image and Select the proper
  burner
• 5. Click the button "Burn"

7
Run a LiveCD

• Insert the LiveCD into DVD-ROM
• Press the power button 
• Booting
• It is just that simple!

8
What can a LiveOS do?

• No need to install an OS
• No hurt to play
• No worry to try new things
• QA
• Can you install software on it?
• Yes, but once poweroff, all are gone!
• Can you save your file?
• Save it on a usb or in the Internet, or it will
  also be gone
• Why? Because it boots from CD/DVD, but CD/DVD is
  unwritable.