If DNS is not configured and on trying to update VyOS, CLI show a backtrace
vyos@vyos:~$ add system image https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso
Trying to fetch ISO file from https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso...
Failed to download https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso.
Traceback (most recent call last):
File "/usr/lib/python3.9/urllib/request.py", line 1346, in do_open
h.request(req.get_method(), req.selector, req.data, headers,
File "/usr/lib/python3.9/http/client.py", line 1255, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.9/http/client.py", line 1301, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.9/http/client.py", line 1250, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.9/http/client.py", line 1010, in _send_output
self.send(msg)
File "/usr/lib/python3.9/http/client.py", line 950, in send
self.connect()
File "/usr/lib/python3.9/http/client.py", line 1417, in connect
super().connect()
File "/usr/lib/python3.9/http/client.py", line 921, in connect
self.sock = self._create_connection(
File "/usr/lib/python3.9/socket.py", line 822, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
File "/usr/lib/python3.9/socket.py", line 953, in getaddrinfo
for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Temporary failure in name resolution
During handling of the above exception, another exception occurred:
urllib.error.URLError: <urlopen error [Errno -3] Temporary failure in name resolution>
Failed to download the ISO file.
Exiting...Additional information
vyos@vyos:~$ show configuration commands | match name-server vyos@vyos:~$ sudo cat /etc/resolv.conf ### Autogenerated by VyOS ### ### Do not edit, your changes will get overwritten ###