Help please, can't seem to run Ubuntu 10.04 download from iso cd....

[liviococcia]

Hello Members
I'd like to upgrade to Ubuntu 10.04, but i only have a Mobile Broadband connection so upgrading via 'Update Manager' is not possible.

What i then did was to download an .iso copy from the main Ubuntu website's main web-page, i followed the process first picking my download country, i then burned this download to a CD disc as an .iso image using the suggested CD burning software, this was all performed using a Windows XP pc at my workplace.

Now at home, i've put this disc into my CD rom drive and the disc is mounted onto the desktop, also a message window had appeared this had only two buttons to pick from 'Cancel' and 'Start Package Manager', there was no 'Run Upgrade' button to choose from.

I also tried the Alt + F2 to open the 'Run application' box, and typed in...

gksu "sh /cdrom/cdromupgrade"

...this did not do anything, and no messages appeared.

I then opened the CD .iso image and tried to run files by double clicking over them, nothing happened.

Have i downloaded, and copied the wronge .iso file to run the disc as an upgrade?, or, can i still use what i've downloaded to upgrade to 10.04?

Members help would be grateful

Kind regards
Livio

[mikewhatever]

If you downloaded the desktop iso, then yes, it's not the right file. You need to get the Alternate iso to be able to upgrade from it.

[liviococcia]

Thanks mikewhatever for the quick reply, is this 'alternate' version a complete Ubuntu 10.04 version, or is it a slimmed download version, and also where do i find the download link for it please.

regards

[arpanaut]

http://mirror.anl.gov/pub/ubuntu-iso/CDs/lucid/

How to Upgrading Using the Alternate CD/DVD:

http://www.ubuntu.com/getubuntu/upgrading#Upgrade%20from%208.04%20LTS%20to%2010.04 %20LTS

[liviococcia]

Many thanks arpanaut for the help. and the links.
regards