Install Raspbian (Debian Wheezy) OS on Raspberry Pi using Ubuntu

Hope you have seen my earlier posts regarding the raspberry pi over this link.This  post is about setting up Raspberry pi with Debian Wheezy on it. I am assuming that you have a Ubuntu/Debian running laptop already available. For those who are not yet in this universe (I mean using windows) please follow this link

Get the raspbian OS image from the official website. You can get the files either by the torrent link or through the direct download link.

Torrent  - http://downloads.raspberrypi.org/raspbian_latest.torrent

Direct download  - http://downloads.raspberrypi.org/raspbian_latest

If your sd card already contains a linux distribution, follow the steps mentioned in this link to factory reset the card

• Run df -h to see what devices are currently mounted.
  
  
• If your computer has a slot for SD cards, insert the card. If not, insert the card into an SD card reader, then connect the reader to your computer.
  
  
• Run df -h again. The new device that has appeared is your SD card. The left column gives the device name of your SD card; it will be listed as something like /dev/mmcblk0p1 or /dev/sdd1. Ideally if you are plugging your card into laptops card reader using it's adapter device label will be /dev/mmcblk0p1.On the other side if the card is connected to a usb card reader, device name shown will be /dev/sdb1 or /dev/sdc1 or /dev sdd1 etc... The last part (p1 or 1 respectively) is the partition number but you want to write to the whole SD card, not just one partition. Therefore you need to remove that part from the name (getting, for example, /dev/mmcblk0 or /dev/sdd) as the device for the whole SD card.
  
  
• Now that you've noted what the device name is, you need to unmount it so that files can't be read or written to the SD card while you are copying over the SD image.
  
  
• Run umount /dev/sdd1, replacing sdd1 with whatever your SD card's device name is (including the partition number).
  
  
• If your SD card shows up more than once in the output of df due to having multiple partitions on the SD card, you should unmount all of these partitions.
  
  
• In the terminal, write the image to the card with the command below, making sure you replace the input file if= argument with the path to your .img file, and the /dev/sdd in the output file of= argument with the right device name. This is very important, as you will lose all data on the hard drive if you provide the wrong device name. Make sure the device name is the name of the whole SD card as described above, not just a partition of it; for example sdd, not sdds1 or sddp1; or mmcblk0, not mmcblk0p1.
  
  cd /path/containing/extracted/OSimage/previously/downloaded
  
  
  sudo dd bs=4M if=2014-09-09-wheezy-raspbian.img of=/dev/sdd
  
  
• Please note that block size set to 4M will work most of the time; if not, please try 1M, although this will take considerably longer.
  
  
• The dd command does not give any information of its progress and so may appear to have frozen; it could take more than five minutes to finish writing to the card. If your card reader has an LED it may blink during the write process. To see the progress of the copy operation you can run sudo pkill -USR1 -n -x dd in another terminal. The progress will be displayed in the original window and not the window with the pkill command; it may not display immediately, due to buffering.
  
  
• Run sync; this will ensure the write cache is flushed and that it is safe to unmount your SD card. 
• Remove the SD card from the card reader.