Ubuntu: apt-get update gives 404 Not Found error

If you recieve “404 Not found” during a apt-get update / apt-get upgrade, the problem can be one of two things:

1)  Your Ubuntu installation is no longer supported.
You can check this by comparing the output of the command:
against the list of Ubuntu releases here:
https://wiki.ubuntu.com/Releases (Notice “End of Life” date)

If your release has reached end of life, you can do upgrade to a new release by following the guide here:
http://www.ubuntu.com/desktop/get-ubuntu/upgrade

2) Temporary problems
The mirror(s) you are using can have temporary problems, in such case you should simply try again later.

One thought on “Ubuntu: apt-get update gives 404 Not Found error

  1. It’s apparently also possible that your mirror has permanent problems (like not existing anymore), in which case you need to change your sources.list