My board has Ubuntu Linux 16.04.6, and I am trying to install google chrome by using the process described here.
Two first steps are going smoothly:
1) wget -q -O - https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
2) echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" | sudo tee /etc/apt/sources.list.d/google-chrome.list
However the third step gets many failures
3) sudo apt-get update
root@localhost:~# apt-get update
Err:1 http://ports.ubuntu.com/ubuntu-ports xenial InRelease
Temporary failure resolving 'ports.ubuntu.com'
Err:2 http://dl.google.com/linux/chrome/deb stable InRelease
Temporary failure resolving 'dl.google.com'
Err:3 http://ports.ubuntu.com/ubuntu-ports xenial-updates InRelease
Temporary failure resolving 'ports.ubuntu.com'
Err:4 http://ports.ubuntu.com/ubuntu-ports xenial-backports InRelease
Temporary failure resolving 'ports.ubuntu.com'
Err:5 http://mirrors.ustc.edu.cn/ubuntu-ports xenial InRelease
Temporary failure resolving 'mirrors.ustc.edu.cn'
Err:6 http://ports.ubuntu.com/ubuntu-ports xenial-security InRelease
Temporary failure resolving 'ports.ubuntu.com'
Err:7 http://mirrors.ustc.edu.cn/ubuntu-ports xenial-backports InRelease
Temporary failure resolving 'mirrors.ustc.edu.cn'
Err:8 http://mirrors.ustc.edu.cn/ubuntu-ports xenial-proposed InRelease
Temporary failure resolving 'mirrors.ustc.edu.cn'
Err:9 http://mirrors.ustc.edu.cn/ubuntu-ports xenial-security InRelease
Temporary failure resolving 'mirrors.ustc.edu.cn'
Err:10 http://mirrors.ustc.edu.cn/ubuntu-ports xenial-updates InRelease
Temporary failure resolving 'mirrors.ustc.edu.cn'
Reading package lists... Done
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial/InRelease Temporary failure resolving 'ports.ubuntu.com'
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-updates/InRelease Temporary failure resolving 'ports.ubuntu.com'
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-backports/InRelease Temporary failure resolving 'ports.ubuntu.com'
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-security/InRelease Temporary failure resolving 'ports.ubuntu.com'
W: Failed to fetch http://mirrors.ustc.edu.cn/ubuntu-ports/dists/xenial/InRelease Temporary failure resolving 'mirrors.ustc.edu.cn'
W: Failed to fetch http://mirrors.ustc.edu.cn/ubuntu-ports/dists/xenial-backports/InRelease Temporary failure resolving 'mirrors.ustc.edu.cn'
W: Failed to fetch http://mirrors.ustc.edu.cn/ubuntu-ports/dists/xenial-proposed/InRelease Temporary failure resolving 'mirrors.ustc.edu.cn'
W: Failed to fetch http://mirrors.ustc.edu.cn/ubuntu-ports/dists/xenial-security/InRelease Temporary failure resolving 'mirrors.ustc.edu.cn'
W: Failed to fetch http://mirrors.ustc.edu.cn/ubuntu-ports/dists/xenial-updates/InRelease Temporary failure resolving 'mirrors.ustc.edu.cn'
W: Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/InRelease Temporary failure resolving 'dl.google.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.
There are many responses to similar issues in the web that refer to dns problems (I tried almost all the proposed solutions/workarounds), but since ping to the domains that get temporary failures resolving ('ports.ubuntu.com', 'dl.google.com', 'mirrors.ustc.edu.cn',...) work properly, it does not seem that this is the right root cause.
root@localhost:~# ping ports.ubuntu.com
PING ports.ubuntu.com (91.189.88.150) 56(84) bytes of data.
64 bytes from astomi.canonical.com (91.189.88.150): icmp_seq=1 ttl=52 time=69.3 ms
64 bytes from astomi.canonical.com (91.189.88.150): icmp_seq=2 ttl=52 time=71.3 ms
64 bytes from astomi.canonical.com (91.189.88.150): icmp_seq=3 ttl=52 time=69.1 ms
Any help to investigate this problem is appreciated.
