Install ubuntu

Clean installation of ubuntu in the SSD with HDD being used /home folder.

1. Installation of ubuntu

1. Boot with live ubuntu CD

caution : disconnect internet, otherwise you will get retrieving error (stop at 43 of 53)

1. Select erase and install ubuntu (second option)
2. File system: ext4 or btrfs
3. Complete installing ubuntu
4. Boot with live ubuntu cd and select 'try ubuntu'
5. Execute gparted partition editor

Remove linux-swap (It occupies too much space)
Remove Exteend
Extend /dev/sda1 to full capacity leaving 1 GB (1000 MB)
Create Extended partition to allocate (1 GB) (partition type: Extended)
Create linux-swap  space occupying 1 GB
'Apply'

1. Restart

2. Optimization to SSD

1. turn on Trim

Edit /etc/fstab
UUID=ac39c463-fe88-45ea-a4dd-f4eb6117141c  /  ext4   discard,noatime,errors=remount-ro   0   1

1. tunr off swap

Edit /etc/sysctl.conf 
vm.swappiness=1
vm.vfs_cache_pressure=50

3. Mounting HDD to home folder

In case, mounting HDD containing home folder files, create all users before mounting to prevent overwritting.

To get more information, go https://help.ubuntu.com/community/Partitioning/Home/Moving

1. Find the uuid of the Partition

$ sudo blkid

take note (copy&paste into a text-file) the uuid of the partition that you have set-up ready to be the new /home partition.

1. Setup fstab

Duplicate your fstab file: $ sudo cp /etc/fstab /etc/fstab.$(date +%Y-%m-%d) Compare the two files to confirm the backup matches the original:

$ cmp /etc/fstab /etc/fstab.$(date +%Y-%m-%d)

Open the original fstab in a text editor:

$ sudo vim /etc/fstab 

And add these lines into it

(identifier)  (location, eg sda5)   (format, eg ext3 or ext4)      (some settings) 
UUID=????????   /home    ext3          nodev,nosuid       0       2