![Fix “sudo: Unable to resolve host”](https://ytimg.googleusercontent.com/vi/KCO1gdsUCzM/hqdefault.jpg)
Fix “sudo: Unable to resolve host”
When you change your hostname you get this error. To fix this problem, you just need to run a few simple commands. Where I put /"PI4/" put your new hostname. Instead of /"raspberrypi/" you could have /"ubuntu/" or /"debian/", that's just the old hostname and the one you will replace the new one with.
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