Ubuntu – How to move Ubuntu to an SSD

filesystemhard drivepartitioningssd

My current situation is:

  • One hard disk
  • Dual boot Ubuntu 11.04 and Windows 7. Partitions:
    • 100MB Windows System thingy
    • 144GB Main Windows
    • 160GB Ubuntu
    • 4GB Swap
    • 12GB System Restore stuff

Now I want to install an 80GB SSD and move Ubuntu to it. AFAIK I need to:

  • Shrink the 160GB Ubuntu partition to 80GB
  • Copy it over to the SSD
  • Change fstab to mount the SSD as /

How do I do the second? And what do I need to do about Grub?

Best Answer

  • 1) Copying files

    You want to copy the FILES, not the whole partition ( including its free space ), so you don't need to resize the partition first. Boot from the livecd and mount both the HD and SSD ( after formatting a partition on the SSD of course ), then copy all of the files over:

    sudo cp -Tax /media/hd /media/ssd

    Use the correct names for the hd and ssd mount points of course. Then you just need to edit the /etc/fstab on the ssd to point to the new fs UUID ( you can look it up with blkid ). Finally you need to install grub on the ssd.

    2) Dealing with GRUB

    a) Command line:

    sudo -s
    for f in sys dev proc ; do mount --bind /$f /media/ssd/$f ; done
    chroot /media/ssd
    grub-install /dev/ssd

    Of course, use the correct device for /dev/ssd. The whole disk, not a partition number.

    b) "Recommended repair" magic button in Boot-Repair:


    sudo add-apt-repository ppa:yannubuntu/boot-repair
    sudo apt-get update
    sudo apt-get install -y boot-repair && boot-repair

    enter image description here

    Finally reboot and make sure your bios is set to boot from the SSD.