Ubuntu - Clone OS Partition

Hi,

1. We have:
• sda: destination clone disk 
• sdb: disk need to clone
2. You need to check your current hard drive using:
• df
• 
• => your current hard drive was sdb
3. Go to screen mode, because this process could be take a long times:
4. Run command for clone:
• dd if=xxx of=yyy bs=zzz
• xxx: path of hard drive / partition you want to clone
• yyy: destination
• zzz: buffer size
• E.G.:
• dd if=/dev/sdb of=/dev/sda bs=10M
• dd if=/dev/sdb1 of=/dev/sda1 bs=64k
• Waiting until it completed:
• sdb1: 100GB
• dd if=/dev/sdb1 of=/dev/sda1 - about 6 hours
• dd if=/dev/sdb1 of=/dev/sda1 bs=100M - 10'
5. Mount new partition OS
• sudo su
• sudo mount /dev/sda1 /mnt
• cd /mnt
• blkid
• /dev/sda1: UUID="07bcccc5-8285-491c-955a-b981a1d27dd4" TYPE="ext4" 
• /dev/sda2: UUID="615bb823-b8cf-4739-9048-8b25ebfce3dd" TYPE="ext4" 
• /dev/sda5: UUID="8f81b6fd-fedc-4bbc-90fa-a1755f6a0597" TYPE="swap" 
• /dev/sdb1: UUID="39e07ef3-2292-44ef-a9b2-78cc7341fee0" TYPE="ext4" 
• /dev/sdb2: UUID="b9072967-cfa4-4762-bf73-024d5672d4c1" TYPE="ext4" 
• /dev/sdb5: UUID="48f14db3-bbac-474c-b7ee-1237fd25b60e" TYPE="swap"
• vim etc/fstab
• Change UUID to sda hard drive:
• 
• UUID=39e07ef3-2292-44ef-a9b2-78cc7341fee0 => UUID=07bcccc5-8285-491c-955a-b981a1d27dd4
• UUID=b9072967-cfa4-4762-bf73-024d5672d4c1 => UUID=615bb823-b8cf-4739-9048-8b25ebfce3dd
• UUID=48f14db3-bbac-474c-b7ee-1237fd25b60e => UUID=8f81b6fd-fedc-4bbc-90fa-a1755f6a0597
• Save file
• Reboot and make sure it not broken
6. Update Grub:
• http://ubuntuforums.org/showthread.php?t=1641020
• Update new UUID for clone partition:
• sudo tune2fs -U random /dev/sda1
• Make sure you update grub and fstab before you reboot
• sudo update-grub
• With the old drive unplugged, from a LiveCD you can run the following to make sure G2 is on the MBR. Change XY to the correct names (example: sda5)
• sudo mount /dev/sdb1 /mnt
• sudo grub-install --recheck /dev/sdb
• ##sudo grub-install --root-directory=/mnt /dev/sda
• http://askubuntu.com/questions/31864/error-no-such-device-guid
• Or Download the Boot Info Script: http://bootinfoscript.sourceforge.net/
7. Disabled sdb and run on sda
8. Finished

Thanks