Comment 9 for bug 1308378

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Thomas Hood (jdthood) wrote : Re: No working network after 12.04 LTS -> 14.04 LTS upgrade if no /etc/resolv.conf in precise

> Weirdly, I've multiple 14.04 machines (including freshly installed) here
> that lose name resolving abilities after removing /etc/resolv.conf.

Ah, a misunderstanding. What I meant is that the resolver still functions: it tries to reach a nameserver at 127.0.0.1. In your case there is no nameserver listening at 127.0.0.1 so resolving doesn't succeed.