To update your Linode Ubuntu 8.04 release, or any Ubuntu 8.04 release, first check that you are infact running this release by going to /etc and executing: cat *release You should see output similar to:
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu 8.04"
Once you have confirmed you are working with the correct version, type the following commands:
sudo apt-get update
sudo apt-get upgrade
The first command updates your apt-get repository records, the second performs your required upgrade. After the upgrade has completed you should see the output of cat *release as:
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu 8.04.2"
The upgrade is now complete. Ideally you should test some websites, especially ones that uses a lot of non-standard packages, to make sure that the upgrade has not negatively impacted them. Although in most cases upgrade issues should be non-existent.
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