Howto: upgrade from Ubuntu Linux breezy to dapper

by on June 2, 2006 · 11 comments· LAST UPDATED June 2, 2006

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Before using any one of the following method make sure, you have a backup of important data.

Method # 1

First edit your /etc/apt/sources.list file and replace all word that read as breezy to dapper as root user (type any one of the following command) :

gksudo vi /etc/apt/sources.list


gksudo gedit /etc/apt/sources.list

Save the file.

Type following commands to upgrade from breezy to dapper:

sudo apt-get update
sudo apt-get -y dist-upgrade

Method # 2

Alternatively, Upgrading procedure is extremely simple if you use GUI tool called update-manager to upgrade from previous version. Open terminal and type the following command:

gksudo update-manager -d

Click on check button to upgrade.

Ubuntu Dapper on the Apple Macbook

Check out instructions on installing on Apple's MacBook.

See also:

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1 Jeff Schroeder June 2, 2006 at 6:35 pm

You are actually incorrect in the command you posted to upgrade from breezy to dapper.
‘gksudo update-manager’ will open up update-manager, but not prompt you to update to a newer major release. This default was requested by Mark Shuttleworth. To display the “new distro available” upgrade option, try this command:
‘gksudo update-manager -d’
Also, this is the “suggested” way to upgrade from breezy to dapper and is what should be first.

2 LinuxTitli June 2, 2006 at 8:18 pm

Thanks, I had updated the post :)

However, method # 1, worked very well for me.

3 Marc June 2, 2006 at 9:47 pm

I upgraded to Ubuntu 6 (“Dapper Drake”) from Ubuntu 5 (“Breezy Badger”, which I was already pleased with) and was pleasantly surprised to find that my system is much more responsive than with Breezy. Firefox seems especially snappier. I really like the new GNOME deskbar applet too.

Also, in your tag line, I think you mean “comprehensive” rather than “compressive”?

4 nixCraft June 2, 2006 at 10:55 pm


They have optimized the kernel so we will get nice speed and thanks for pointing out typo :D

Appreciate your post and feedback.

5 Maria June 8, 2006 at 7:15 am

please help…. i tried method # 1 and this is what i get…
tgb@Extra:~$ sudo apt-get update
Reading package lists… Done
tgb@Extra:~$ sudo apt-get -y dist-upgrade
Reading package lists… Done
Building dependency tree… Done
Calculating upgrade… Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
tgb@Extra:~$ sudo update-manager -d

why is that so?

i also tried method #2 but it only says that my system is up-to-date when in fact i only have Breezy Badger version.

please help.

many thanks,


6 nixCraft June 8, 2006 at 10:30 am


Did you modified the your /etc/apt/sources.list file and replace all word that read as breezy to dapper?

7 Harrakis June 13, 2006 at 9:10 am

Better yet, did you remove the # before all of the http:// lines? if you don;t then apt will not have a clue that it should be looking at the interent to get the updates…

8 Daemmon June 17, 2006 at 9:22 am

I am trying to upgrade to dapper from breezy. I tried method #2 and got:

bash: gksudo: command not found

How do install gksudo? Your post seems to imply that this should be installed by default so I am also wondering why it isn’t in my system already.


9 nixCraft June 17, 2006 at 11:13 am


gksudo is part of Gnome desktop and it should be installed. Try any one of the following:
kdesu update-manager –d

Or to install gksudo type the following command:
sudo apt-get install gksu

10 cameron July 27, 2006 at 10:04 pm

method #1 also works for hoary hedgehog to dapper.

11 Edgar August 24, 2006 at 1:56 pm

Method one was exelent!!!, I upgraded form Hoary to Dapper.
Thankyou very much…

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