Fresh Install/Upgrading from Ubuntu 10.04.4 to Ubuntu 12.04

1. Backup all the data to another hard drive.  Only needed data is copied, since I want a Fresh Upgrade.

back up things

2. Download Ubuntu, extract it to a pen drive

get ubuntu, and extract it with LinuxLive USB Creator.

3. Use GParted to partition

Errors of not able to format FAT32, so I uses GParted to partition the following table for me.

Setting: 

32MB - beginning of hard drive
2GB - Swap area
25GB - Root
100GB - Home folder
Rest - Fat32 as normal portable hard disk

If error still occur, try to partition one block per time.

4. Boot the pen drive and start install process

5. Other Settings

shutting down grub for searching other process while updating OS

sudo chmod -x 30_os-prober

Network manager 

sudo vi /etc/NetworkManager.conf

change false to true

adding repos

that is