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
OR
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.
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- Last Updated: Jun/2/2006


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{ 11 comments… read them below or add one }
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.
Thanks, I had updated the post :)
However, method # 1, worked very well for me.
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”?
Marc,
They have optimized the kernel so we will get nice speed and thanks for pointing out typo :D
Appreciate your post and feedback.
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,
maria
Maria,
Did you modified the your /etc/apt/sources.list file and replace all word that read as breezy to dapper?
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…
Hello,
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.
Thanks
Daemmon,
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
method #1 also works for hoary hedgehog to dapper.
Method one was exelent!!!, I upgraded form Hoary to Dapper.
Thankyou very much…