I need some help over here. I want to split my Ubuntu partition (which contains the root and the home folder) to two separate partitions, so I could only move my root partition to my SSD afterwards. Is this even possible?
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It is possible without a fresh installation but takes a bit of time and effort. Below are the steps:
1. Create a New Partition
If you have enough free space, you can directly use that as a partition by formatting it into an ext4 using gparted. If you do not have free space you should resize your partition (see Shrink a partition without losing data )
2. Copy /home to newly created partition
Mount the new partition if it is not already mounted. Copy /home to new partition by:
sudo cp -Rp /home/* /mount/location/of/new-partition
3. Modify the fstab File
First ge the uuid of the new partition by running:
sudo blkid
and backup the existing fstab file by:
sudo cp /etc/fstab /etc/fstab_backup
Now, open /etc/fstab by:
sudo gedit /etc/fstab
Add the following on a newline. Add the uuid of your newly created partition
UUID=<your-uuid-here> /home ext4 nodev,nosuid 0 2
Save and exit.
4. Move your home
cd / && sudo mv /home /home_old && sudo mkdir /home
Restart your computer and remove home_old by:
sudo rm -rf /home_old
Reference: http://www.howtogeek.com/116742/how-to-create-a-separate-home-partition-after-installing-ubuntu/
