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Possible Duplicate:
How to install software or upgrade from old unsupported release?
How can I fix a 404 Error using the Ubuntu archives?

While trying to upgrade, I got this error. Has anyone seen it before? Please advise me on what to do! Thank you!

W:Failed to fetch http://extras.ubuntu.com/ubuntu/dists/natty/main/source/Sources.gz  404  Not Found
W:Failed to fetch http://extras.ubuntu.com/ubuntu/dists/natty/main/binary-i386/Packages.gz  404  Not Found
E:Some index files failed to download, they have been ignored, or old ones used instead.
Community
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Michele
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1 Answers1

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These are 'extras' for Ubuntu 11.04 ('Natty').

This release reached end-of-life recently, and is no longer supported for security and other updates.

See: Ubuntu 11.04 (Natty Narwhal) reaches end-of-life on October 28, 2012

If you need to be using a long-term-support release, you should be using 12.04 LTS (or possibly 10.04 LTS on very old equipment).

If you are currently using 11.10 (Oneiric):

Is there any reason you still have Natty-specific resources in your setup? Otherwise, removing these two lines will solve this error.

If you are still on 11.04 (Natty):

You should not be attempting to upgrade directly to 12.04, but instead first upgrade to 11.10.

Note: As you have not already done so, and may not be up-to-date, it would be better to do a clean install of 12.04 LTS instead (after backing-up all settings and user data). Any issues you may have with upgrading from 11.04 are not supported, as 11.04 is no longer supported.

david6
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