Upgrade Ubuntu14.04 to 15.04 on 1&1 Cloud Server
Original walkthrough: http://server-tuts.com/upgrade-ubuntu-14-04-lts-to-15-04-on-a-11-cloud-server/
So while we wait for a more elegant solution provided in the form of 1&1 Images, we’re going to upgrade our Ubuntu 14.04 LTS server to the more current 15.04 server and and creating our own installable image.
While this is a simple change, be mindful that we are manually doing an apt-get update with our Package Manager, so if you’re a Plesk User or have some other type of software that normally handles Package Dependency Management, I’d suggest running through this on a clone before doing it on a live server.
{From server-tuts}
At first open your /etc/update-manager/release-upgrades and change the following line:
Prompt=lts
To:
Prompt=normal
After that perform an update:
sudo apt-get upgdate
And then start the upgrade:
sudo do-release-upgrade -d
After that answer the questions by typing y for yes. Just be patient until the progress is done.
At last you will be asked for a reboot. Again type y for yes and do the reboot.
If you check lsb_release -a now you will just see Ubuntu 14.10. Repeat the process to upgrade to Ubuntu 15.04.
After that you will see this by typing lsb_release -a:
[email protected]:~# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 15.04 Release: 15.04 Codename: vivid [email protected]:~#
{End Excerpt}
So now’s the point where, if you this is a clean install or atleast clean enough to be a starting point for future servers, we can create a new image. So go ahead and go to your Images in the Cloud Panel, and Create Image.
And that’s it. Now when you create a new server, select “My Images” from the OS selection and chose your newly created image.