I have Ubuntu 11.04 on my laptop , and I want to upgrade it to Ubuntu 12.04. I have tried to upgrade from upgrade manager but based on my home internet speed , it estimated around 48 hrs so I quit it .
More over I have Ubuntu 12.04 installable , So I wanted to ask what will happen to my 11.04 if I install 12.04 over it , will my data of 11.04 will be lost ?
How will I achieve the upgrade?
You will need the alternate cd to upgrade to 12.04 when you don't want to install over the network.
I know 12.10 doesn't use an alternate install disc anymore, so i assume the primary install disc works as an upgrade without network access.
Upgrading will not delete your private data or the programs you have installed in 11.04. Further warning: new desktop versions tend to mangle old desktop config files. check this which will show you how to upgrade using various ways How do I upgrade to a newer version of Ubuntu?
