Now, an upgrade from Ubuntu 12.10 Quantal Quetzal to Ubuntu 13.04 Raring Ringtail is possible, but it is not recommended because the new Ubuntu 13.04 is an Alpha Testing version.
However, if you want to do this system upgrade, do it at your own risk!
1. The easiest way to update from 12.10 to 13.04, just open the terminal and type this:
$ sudo do-release-upgrade
2. Another method to upgrade from 12.10 to 13.04, harder than the first one listed, is to modify the /etc/apt/sources.list for 13.04 and update the system, like this:
$ sudo sed -i 's/quantal/raring/' /etc/apt/sources.list
$ sudo apt-get update && apt-get dist-upgrade
3. The hardest way is to download the .iso image from here: http://cdimage.ubuntu.com/daily-live/current/, put it on a stick or dvd and install it, by hand.
I recommend using the first method if you really want to test the new Ubuntu Raring Ringtail, because it is the easiest. If you are new to Ubuntu and don’t have the previous 12.10 version, do like I have told you in method 3.
You da man. i tried the first way to upgrade and it is way to easy. Thanks dude.
I had ubuntu 12.04 installed , and it was great after a few updates . Then I went to do the upgrade to ubunto 13.04 and nothing has worked right since then . My computer has crashed twice in 3 hours . I would like to know how to remove the 13.04 upgrade .
do the reversed process:
from raring to quantal:
$ sudo sed -i ‘s/raring/quantal/’ /etc/apt/sources.list
$ sudo apt-get update && apt-get dist-upgrade
from raring to precise
$ sudo sed -i ‘s/raring/precise/’ /etc/apt/sources.list
$ sudo apt-get update && apt-get dist-upgrade
I upgraded to Ubuntu 13 end April 2013 on my old laptop, Compaq Presario C300 and it can’t see the wireless network. I can’t even find the terminal prompt to do what you suggest to revert to Ubuntu 12 and try that. Ubuntu 8 was what I had working on it fine until a few days ago. Time to evolve backwards until these things get sorted out 🙂
On trying the revert commands above, I get Could not open lock file … open (13: permission denied)
and
Unable to lock the admin directory … are you root?
and it still tells me it’s Ububtu 13
any good ideas? A new install of 12 from disc would be my ‘throw a boot at it’ approach 🙂
SAME PROBLEM! I wrote “y” and “I am root!” like a million times and it didn’t care!
I had Ubuntu Linaro 12.11 in my netbook (following too much messing around), and impossible to upgrade to 13.04.
I’m now using method 2, and it’s upgrading now… I’ll see how it goes.
Your article Update from Ubuntu 12.10 to Ubuntu 13.04, by terminal | LinuxG.net write very well, thank you share!