UbuntuHelp:Upgrades

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https://help.ubuntu.com/community/Upgrades

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1. title Upgrading Ubuntu

Introduction

This page is a generic page to upgrade Ubuntu from version 6.06 and up, with the exception of end of life versions. For more information please refer to the upgrade notes.

Before you upgrade..

• Please make sure you have a backup of your important data. You can make a backup of your disks/partitions using clonezilla.
• Read the release notes before upgrading: http://www.ubuntu.com/getubuntu/releasenotes
• Check the file `/etc/update-manager/release-upgrades`. `Prompt=normal` is needed when upgrading from any version to a newer version, `Prompt=never` will never upgrade your OS. `Prompt=lts` will make sure you upgrade from LTS to LTS. You need to be root to edit this file.

Network upgrades

Desktop / GUI Upgrade

update-manager

Server / Command line Upgrade

sudo aptitude install update-manager-core
sudo do-release-upgrade

Upgrades via alternate CD

This method will describe an upgrade without actually burning the ISO to a CD. When you have burned the disc, just plug it in and run `./cdromupgrade` from `/media/cdrom`. Please run `./cdromupgrade --help` for more details regarding upgrades via the alternate CD.

Desktop / GUI Upgrade

mkdir /mnt/alternate
sudo mount -o loop /path/to/alternate-cd.iso /mnt/alternate
cd /mnt/alternate
# Gnome
gksudo ./cdromupgrade
# KDE
kdesudo ./cdromupgrade

Server / Command line Upgrade

mkdir /mnt/alternate
sudo mount -o loop /path/to/alternate-cd.iso /mnt/alternate
cd /mnt/alternate
sudo ./cdromupgrade --frontend=DistUpgradeViewText

The Debian way of upgrading

Please be aware that this method is valid, yet not advised by the Ubuntu developers. In this example, jaunty is our current OS and karmic is the release we want to upgrade to.

# Upgrade all the packages to the latest versions
sudo aptitude update
sudo aptitude safe-upgrade

# Update our sources, save the original as /etc/apt/sources.list.ORIG
sudo perl -p -i.ORIG -e 's/jaunty/karmic/g' /etc/apt/sources.list

# Upgrade your box
sudo aptitude update
sudo aptitude install dpkg apt aptitude
sudo aptitude safe-upgrade
sudo aptitude full-upgrade

Upgrading to development releases

Please be aware that development releases are unstable, and not suited for people who do not want to fix/report/triage bugs. If you want a stable Ubuntu version, stick to the official released versions or run an LTS version of Ubuntu. Warning:: Please do not advise others to use this method to upgrade other versions of Ubuntu. You'll teach them how to upgrade to a development release!

Desktop / GUI Upgrade

update-manager -d

Server / Command line Upgrade

sudo aptitude install update-manager-core
sudo do-release-upgrade -d

Besides the network upgrades you could upgrade to a development release via an alternate CD or via the Debian way. This is left as an exercise for the user.

See Also

• http://www.ubuntu.com/getubuntu/upgrading - Official upgrade documentation.
• UpgradeNotes - Upgrade notes for all Ubuntu releases
• EOLUpgrades - Upgrading End-of-Life (unsupported) releases.

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