Update README for hostname req

Add information on /etc/hosts hostname requirement.

For rancher/k3s/issues/138
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Erik Wilson 2019-04-02 17:32:16 -07:00 committed by GitHub
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@ -79,6 +79,13 @@ flag
At this point, you can run the agent as a separate process or not run it on this node at all.
If you encounter an error like `"stream server error: listen tcp: lookup some-host on X.X.X.X:53: no such host"`
when starting k3s please ensure `/etc/hosts` contains your current hostname (output of `hostname`),
set to a 127.x.x.x address. For example:
```
127.0.1.1 myhost
```
Joining nodes
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