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This article describes how you can upgrade your Fedora 14 system to Fedora 15. The upgrade procedure works for both desktop and server installations.

I do not issue any guarantee that this will work for you!

The commands in this article must be executed with root privileges. Open a terminal (on a Fedora 14 desktop, go to Applications > System Tools > Terminal) and log in as root, or if you log in with a regular user, type

su

to become root.

Please make sure that the system that you want to upgrade has more than 600 MB of RAM - otherwise the system might hang when it tries to reboot with the following message (leaving you with an unusable system):

Trying to unpack rootfs image as initramfs...

First we must upgrade the rpm package:

yum update rpm

Then we install the latest updates:

yum -y update

Next we clean the yum cache:

yum clean all

If you notice that a new kernel got installed during yum -y update, you should reboot the system now:

reboot

(After the reboot, log in as root again, either directly or with the help of

su

)

Now we come to the upgrade process. We can do this with preupgrade (preupgrade will also take care of your RPMFusion packages).

Install preupgrade...

yum install preupgrade

... and call it like this:

preupgrade

The preupgrade wizard will then start on your desktop. Select Fedora 15 (Lovelock). Afterwards the system is being prepared for the upgrade.

At the end, click on the Reboot Now button.

During the reboot, the upgrade is being performed. This can take quite a long time, so please be patient.

Afterwards, you can log into your new Fedora 15 desktop.

First we must upgrade the rpm package:

yum update rpm

Then we install the latest updates:

yum -y update

Next we clean the yum cache:

yum clean all

If you notice that a new kernel got installed during yum -y update, you should reboot the system now:

reboot

(After the reboot, log in as root again, either directly or with the help of

su

)

Now we come to the upgrade process. We can do this with preupgrade.

Install preupgrade...

yum install preupgrade

... and call it like this:

preupgrade-cli

It will show you a list of releases that you can upgrade to. If all goes well, it should show something like Fedora 15 (Lovelock) in the list:

[root@server1 ~]# preupgrade-cli
Loaded plugins: blacklist, langpacks, whiteout
No plugin match for: rpm-warm-cache
No plugin match for: remove-with-leaves
No plugin match for: auto-update-debuginfo
Adding en_US to language list
Loaded plugins: langpacks, presto, refresh-packagekit
Adding en_US to language list
please give a release to try to pre-upgrade to
valid entries include:
"Fedora 15 (Lovelock)"
[root@server1 ~]#

To upgrade, append the release string to the preupgrade-cli command:

preupgrade-cli "Fedora 15 (Lovelock)"

Preupgrade will also take care of your RPMFusion packages, so all you have to do after preupgrade has finished is to reboot:

reboot

During the reboot, the upgrade is being performed. This can take quite a long time, so please be patient. Afterwards, you can log into your new Fedora 15 server.

View the original article here

Version 1.0
Author: Falko Timme
Follow me on Twitter
Last edited 04/28/2011

The new Ubuntu 11.04 (Natty Narwhal) has just been released. This guide shows how you can upgrade your Ubuntu 10.10 desktop and server installations to Ubuntu 11.04.

This document comes without warranty of any kind! I do not issue any guarantee that this will work for you!

Start the Update Manager (System > Administration > Update Manager):

The Update Manager should show that a new distribution release (11.04) is available. Click on the Upgrade button to start the distribution upgrade:

 A window with the release notes for 11.04 comes up. Click on Upgrade again:

 The upgrade tool is now being downloaded. Afterwards, type in your password:

 The upgrade is being prepared:

 Click on Start Upgrade to finally begin with the upgrade process:

 The upgrade packages are now being downloaded...

 ... and installed. This can take some time, so please be patient.

 At the end of the upgrade process, you should remove obsolete packages:

 

The system needs to be rebooted to complete the upgrade, therefore click on Restart Now:

 When you log in, Ubuntu 11.04 will by default start the new Unity desktop which requires that your hardware supports 3D acceleration. If it doesn't, you can choose the Ubuntu Classic desktop at the login screen instead:

 After the reboot, you can use your new Ubuntu 11.04 desktop (because I used a virtual machine for this tutorial, the system has no 3D support, that's why you see the Ubuntu Classic desktop in the screenshot below):

 ow To Upgrade Ubuntu 10.10 (Maverick Meerkat) To 11.04 (Natty Narwhal) (Desktop & Server) - Page 2

View the original article here