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I've been trying to upgrade two servers from 12.04 LTS to 14.04 LTS for a few days now using do-release-upgrade. It seems that they're both getting hung up on downloading the last of two updates.

For one, I can't fetch vim-runtime from trusty/main and linux-headers-3.13.0-45 from trusty-updates/main. For the other, I again can't fetch vim-runtime from and libicu-dev.

In all cases, I get some variation of

Err http://xx.archive.ubuntu.com/ubuntu/ <blah blah> Connection failed [IP: nnn.nn.nn.nn 80]

where the country prefix, package, and IP address are different depending on the download that's failing.

I've tried changing /etc/apt/sources.list to various mirrors (Canada, US, Germany, and without a country prefix) and running sudo apt-get update && sudo apt-get upgrade after each change to the sources list.

I've even tried adding Amazon's EC2 mirros per this question and I still get the same connection failures.

I can ping the IP addresses. I can even wget the .deb packages directly from the failed-to-fetch links provided when do-release-upgrade aborts.

Both servers are running as virtual machines under Hyper-V on the same Windows server. All other updates downloaded (eventually).

Any thoughts on how I can move past this issue and upgrade these servers?

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1 Answer 1

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While I was never able to resolve the issue of why the downloads for these packages would not complete, I was finally able to complete the upgrade as follows:

  1. cd /var/cache/apt/archives
  2. wget package_name.deb
  3. Repeat step 2 for all missing packages.
  4. do-release-upgrade

Hope this helps anyone else that might be having difficulty with this.

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