I'm trying to do a full install of elementary OS Freya on a USB 2 drive to create a portable OS. I want the full install so that I can do full upgrades. I've created something similar with Ubuntu GNOME. This works fine but is a little bit unresponsive sometimes. My thought is that elementary OS is a little lighter and would be more responsive.
I've downloaded the ISO file from elementary.io and created the Live USB stick using UNetbootin. The Live USB boots fine and works well when I run it in "Try Elementary" mode. I then install from the Live USB going through the steps and selecting "Something else" creating two partitions, one
/ that I set as primary, ext4 journal of 11GB and one
swap of 4GB and setting the USB drive as "Device for boot loader". The installation goes quite slow but it creates a bootable USB drive. However it is almost impossible to use since it runs so slow. It is very slow to load applications etc.
Anyone with previous experience in doing a full install of elementary OS on an USB drive? Any suggestions what I might be doing wrong?