Upgrade Ubuntu 8.04 LTS server

Note to self: here is how to upgrade Ubuntu 8.04 LTS (or any other release that is no longer supported) to newer Ubuntu release.

When you are upgrading unsupported release of Ubuntu if you try to do the usual sudo apt-get update it will most likely fail because… well, it’s unsupported. The simple fix for this is to change your /etc/apt/sources.list and replace repository URLs from something like us.archive.ubuntu.com to old-releases.ubuntu.com.

After that you should be able follow normal upgrade procedure (use sudo if you are not root):

apt-get update
apt-get install update-manager-core
do-release-upgrade

References:

• Rimuhosting’s page on upgrading Ubuntu
• Discussion on upgrading unsupported Ubuntu release

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