It is possible to update a Live USB with persistent installed?

Question

So i have a Live Ubuntu 14.04,installed on an USB 2.0 8 GB Flash Drive,i've created 2 partition first around 1 GB for the extracted Ubuntu ISO and the rest is a partition labeled casper-rw for persistent and formatted as Ext4.The question is,Could i update it in usual way like updating Ubuntu that installed in usual way (e.g. Installed in Desktop or Laptop HDD).Is it possible ?

P.S. : I've tried to do that with usual Live Ubuntu 13.10 with persistent installed but the terminal show some error and when i reboot the Live Ubuntu,it won't start at all.Just a dark screen with something white blinking :v

Solution

Persistent has problem of a late, so I wouldn't use it for "persistent" installations anymore. I would install the whole thing in the USB memory as described here.

Comments

[Apache]

Persistence will use up more and more data, even if you delete things. It's not a viable option.

[Apache]

@OP: Be aware, that you will need a FAST pendrive for this. I used generic (Kingston DT2, some Sandisk one, etc) drives, and it took like 5-7 hours to upgrade my install. And well, every single write was a pain. So use a fast drive.

[Tommy Aria Pradana]

So it's possible to Install whole environment to a pendrive,but isn't it take more space than using persistent ? and i'm sure installing on a pendrive will worn out the USB faster than using a persistent,am i correct ?

[Braiam]

@TommyAriaPradana the drive will take the same space using persistence or not. And writing to the drive has nothing to do with persistence, the writes will be the same.