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I have trouble with the Ubuntu 16.04 on Raspberry Pi 3B sever problem.

When I type $ sudo apt-get update ,
it will shows the error message: 

Fail to fetch

The image are here for the evidence:

real fail to fetch image

err1: http://ports.ubuntu.com/ubuntu-ports xenial InRelease
Temporary failure resolving 'ports.ubuntu.com'

err2: http://ppa.launchpad.net/ubuntu-raspi2/ppa-rpi3/ubuntu  xenial InRelease
Temporary failure resolving 'ppa.launchpad.net'
...

Reading Package lists...Done

W:Failure to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial/InRelease Temporary failure resolving 'ports.ubuntu.com'

...

W: Some index files failed to download. They have been ignored, or old one used instead.

How can I fix it??

Thank you for all your help!

abu_bua
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Chen Moye
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  • Do you actually have an IP address? `ifconfig` Welcome to Ask Ubuntu. – chili555 Sep 24 '18 at 13:42
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    Does this answer your question? [apt-get update fails to fetch files, “Temporary failure resolving …” error](https://askubuntu.com/questions/91543/apt-get-update-fails-to-fetch-files-temporary-failure-resolving-error) – karel Jan 21 '20 at 09:13

1 Answers1

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This is likely because you don't have network connectivity on the Raspberry Pi. First check if you actually can reach the Internet via:

ping google.com

If this fails then you need to connect the Raspberry Pi to the Internet first.

Kristopher Ives
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