In order to install the ntpdate program, I would like to update the linux version (Debian GNU/Linux 8.8 jessie).
I get the following errors:
root@beaglebone:~# sudo apt-get update
Ign https://deb.nodesource.com jessie InRelease
Err http://repos.rcn-ee.com jessie InRelease
Err http://security.debian.org jessie/updates InRelease
Err http://security.debian.org jessie/updates Release.gpg
Could not resolve ‘security.debian.org’
Err http://repos.rcn-ee.com jessie Release.gpg
Could not resolve ‘repos.rcn-ee.com’
Ign https://deb.nodesource.com jessie Release.gpg
Err http://httpredir.debian.org jessie InRelease
Err http://httpredir.debian.org jessie-updates InRelease
Err http://httpredir.debian.org jessie Release.gpg
Could not resolve ‘httpredir.debian.org’
Err http://httpredir.debian.org jessie-updates Release.gpg
Could not resolve ‘httpredir.debian.org’
Ign https://deb.nodesource.com jessie Release
Err https://deb.nodesource.com jessie/main armhf Packages
Err https://deb.nodesource.com jessie/main armhf Packages
Err https://deb.nodesource.com jessie/main armhf Packages
Err https://deb.nodesource.com jessie/main armhf Packages
Err https://deb.nodesource.com jessie/main armhf Packages
Could not resolve host: deb.nodesource.com
Reading package lists… Done
W: Failed to fetch http://httpredir.debian.org/debian/dists/jessie/InRelease
W: Failed to fetch http://httpredir.debian.org/debian/dists/jessie-updates/InRelease
W: Failed to fetch http://security.debian.org/dists/jessie/updates/InRelease
W: Failed to fetch http://repos.rcn-ee.com/debian/dists/jessie/InRelease
W: Failed to fetch http://repos.rcn-ee.com/debian/dists/jessie/Release.gpg Could not resolve ‘repos.rcn-ee.com’
W: Failed to fetch http://security.debian.org/dists/jessie/updates/Release.gpg Could not resolve ‘security.debian.org’
W: Failed to fetch http://httpredir.debian.org/debian/dists/jessie/Release.gpg Could not resolve ‘httpredir.debian.org’
W: Failed to fetch http://httpredir.debian.org/debian/dists/jessie-updates/Release.gpg Could not resolve ‘httpredir.debian.org’
W: Failed to fetch https://deb.nodesource.com/node_0.12/dists/jessie/main/binary-armhf/Packages Could not resolve host: deb.nodesource.com
W: Some index files failed to download. They have been ignored, or old ones used instead.