How to create Linux partition on windows as dual boot system

If you are using windows operating system on your computer and want to install Linux also as dual boot system   but you are new to Linux environment  and dont know nothing about how to partition hard disk ,  this blog is the right place for you .

Lets learn how to install Linux  (Ubuntu 11.10) step by step on you system.

Step 1.  (Preparing the Bootable Linux CD/ Pendrive)
Go to  http://www.ubuntu.com/download/ubuntu/download to download Ubuntu Linux

Step 2.  click here to create a bootable pen drive

Step 3.(Back up you data from Last drive )

I will explain this with an  example
Let's assume that you have 240 GB hard disk in your system .

Drive Letter       Space              Label
C Drive                50 GB               [Window]
D Drive               90 GB               [Data]
E Drive             100 GB               [Movies]

Now move   all the data from E Drive[Movies] to D Drive [Data]


Step 2.(Partitioning the Hard Disk )

Now your  E drive is empty   after moving all data to D drive .
Now we want to make a below partitions for Linux

20 GB drive for Linux  and other software installation and user data
  6 GB Partition for Swap  drive  [Swap drive size should be at least double of your system RAM size, I have 3 GB RAM in my system in this example ]

Go to Control Panel --> Administrative Tools -->        --- > Disk Manager
Divide/ Resize  the E drive into 74 GB + 20 GB + 6 GB sizes = 100 GB (total size of E drive)


Restart the system and boot with Bootable Pendrive / CD

For 20 GB drive select " / "  from mount dropdown  box  and ext3  file format
Example : /dev/sda6 ext3 52428 MB


For   6 GB drive select Swap                                                                          
Example : /dev/sda7 swap 5494 MB