Upgrading to Ubuntu 15.04 Vivid from Ubuntu 14.10 Utopic
The Tutorial shows you How to Properly Upgrade Ubuntu from 14.10 Utopic Unicorn to 15.04 Vivid Vervet GNU/Linux Desktop/Server.
To Update and Upgrade the Ubuntu 14.10 Utopic Unicorn System to Ubuntu 15.04 Vivid Vervet I’ll Make Use of the Command Line Terminal Console.
Before the 23 of April 2015 you’ll have to Switch to the Ubuntu 14.10 Utopic Development Branch…
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Open Terminal Console Window
Ctrl+Alt+t
(Press “Enter” to Execute Commands) -
Upgrading to Ubuntu 15.04 Vivid Vervet
sudo su
If Got “User is Not in Sudoers file” then see: How to Enable sudo
apt-get update
apt-get dist-upgrade
do-release-upgrade
If Got “No new releases found” after the 23 April 2015 or in any other Case to Anticipate a New Release with the Dev one:
do-release-upgrade -d
Follow the Command Line Wizard until to Authorize with “y” for Upgrading Startup.
Then you’ll Need to Wait for some Time… Until the Upgrading Process is Successfully Achieved.reboot
Then Reboot Into your Barely New Ubuntu 15.04 Vivid Vervet! :)
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Last but Not Least Update Again the New System
sudo su -c "apt-get dist-upgrade"
How to Quick Start with Command Line on Ubuntu