Ubuntu – Can i update from “ubuntu-12.04-desktop-i386.iso” file


update speed is so slow, and i have download the new iso file:ubuntu-12.04-desktop-i386.iso, can i update directly from the iso file ?
my version is 11.10, Any help is appreciated.

Best Answer

Upgrading by using the CD or USB image

If you are using 10.04 LTS or 11.10 and you either insert the live CD or boot from the live CD to start installing it will give a option of upgrading to 12.04. It will automatically detect installed applications and install the updated version of your applications also.

If you download an ISO, the recommendation is to perform a md5sum check to ensure both the ISO downloaded and the burned CD are valid.

  • Upgrade from 10.04 LTS (here shown with dual boot):

NOTE: Upgrades from 10.04 to 12.04 are not activated yet, see this question for more detail:

Taken from 12.04LTS upgrade

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