[rvmpycoz] Using NetworkManager with netplan

July 15, 2019

Ubuntu server and mini.iso (17.10) has switched to netplan for configuring network.  To go back to using NetworkManager, change renderer to NetworkManager and delete the rest:

$ cat /etc/netplan/01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager

This was taken from a desktop install.  Using NetworkManager allows using GUI tools, e.g., Gnome Preferences, to configure wireless.

It's disappointing Ubuntu doesn't provide tools, GUI or otherwise, for common cases of netplan network configuration.

I have also occasionally had to change wifi.powersave to 2 (from 3) in /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf . This disables power saving.  Wireless had been seemingly mysteriously disabling itself with no way to turn it back on other than rebooting.

https://ubuntuforums.org/archive/index.php/t-2386240.html

Error messages in kern.log:

iwl3945 0000:03:00: Queue 2 stuck for 2048 ms.

iwl3945 0000:03:00: On demand firmware reload

ieee80211 phy0: Hardware restart was requested

iwl3945 0000:03:00: BSM uCode verification failed at addrs 0x00003800+0 (of 900) is 0xa5a5a5a2, s/b 0xf802020

iwl3945 0000:03:00: Unable to set up bootstrap uCode: -5

... (last two repeat)

iwl3945 0000:03:00: Unable to initialize device after 5 attempts

Share this

Related Posts

Previous
Next Post »