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Upgrading to Ubuntu 8.04 LTS

This document provides instructions and notes on upgrading to Ubuntu 8.04 LTS, released on the 24th of April 2008.

Before you start

• You can directly upgrade to Ubuntu 8.04 LTS from Ubuntu 7.10 or from Ubuntu 6.06 LTS. This page contains instructions for both. (see UpgradeNotes)

• Be sure that you have all updates applied to your current version of Ubuntu before you upgrade.

• Before upgrading it is recommended that you read the release notes for Ubuntu 8.04 LTS, which document caveats and workarounds for known issues in this version.

Note: If you have a version of Ubuntu other than 6.06 LTS or 7.10, please see Installation/UpgradeFromOldVersion for information on how to upgrade.

Upgrade from 7.10 to 8.04 LTS

Network upgrade for Ubuntu desktops (recommended)

You can easily upgrade over the network with the following procedure.

1. Open System -> Administration -> Update Manager

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2. Click the Check button to check for new updates.

3. If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete.

4. A message will appear informing you of the availability of the new release.

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5. Click Upgrade.

6. Follow the on-screen instructions.

Network upgrade for Kubuntu desktops (recommended)

To upgrade from Kubuntu 7.10 to 8.04, over the internet, use the following procedure.

For a full graphical presentation of these steps, please review HardyUpgrades/Kubuntu.

1. From the K-Menu run Adept Manager.

2. Click Fetch Updates.

3. The Version Upgrade button will appear. Click it.

4. Follow the prompts

Network upgrade for Ubuntu servers (recommended)

1. Install update-manager-core if it is not already installed:

   			sudo aptitude install update-manager-core
   	

2. Launch the upgrade tool:

   			sudo do-release-upgrade
   	

3. Follow the on-screen instructions.

Upgrade from 6.06 LTS to 8.04 LTS

This section describes how to perform 6.06 LTS -> 8.04 LTS upgrades.

Network upgrade for Ubuntu desktops (recommended)

1. Make sure the "dapper-updates" software channel is enabled.

2. Be sure that you have all updates applied before you upgrade.

3. Press Alt-F2 and type gksu "update-manager -d"

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4. Click the Check button to check for new updates.

5. A message will appear informing you of the availability of the new release.

   • 

6. Click Upgrade.

7. Follow the on-screen instructions.

Network upgrade for Kubuntu desktops (recommended)

To upgrade from Kubuntu 6.06 to 8.04 over the Internet, use the same procedure as for Ubuntu server, below.

Network upgrade for Ubuntu servers (recommended)

If you run an Ubuntu server, you should use the new server upgrade system.

1. enable the "dapper-updates" repository

2. install the new "update-manager-core" package - dependencies include python-apt, python-gnupginterface and python2.4-apt.

3. run "do-release-upgrade -d" in a terminal window

4. follow the steps on the terminal window

Upgrading using the alternate CD/DVD

Use this method if the system being upgraded is not connected to the Internet.

1. Download and burn the alternate installation CD.

2. Insert it into your CD-ROM drive.

3. A dialog will be displayed offering you the opportunity to upgrade using that CD.

4. Follow the on-screen instructions.

If the upgrade dialog is not displayed for any reason, you may also run the following command using Alt+F2:

gksu "sh /cdrom/cdromupgrade"

Or in Kubuntu run the following command using Alt+F2:

kdesu "sh /cdrom/cdromupgrade"