the great migration from truenas to fedora and all its collatoral

infrastructure/graduated/ubuntu/ubuntu-server-24.04.md

@@ -6,6 +6,8 @@
   - [Automatic Updates](#automatic-updates)
   - [Disable Swap](#disable-swap)
   - [Extras](#extras)
+  - [Troubleshooting](#troubleshooting)
+    - [nmcli device unmanaged](#nmcli-device-unmanaged)
 
 Note these instructions differentiate between an `operator` and a `server`. The operator can be
 any machine that configure the server. A pipeline, laptop, dedicated server, etc. are all options.
@@ -145,3 +147,19 @@ chsh -s $(which zsh) && chsh -s $(which zsh) ducoterra
 apt install -y cockpit
 systemctl enable --now cockpit
 ```
+
+## Troubleshooting
+
+### nmcli device unmanaged
+
+Ubuntu installs a config file that sets most devices unmanaged:
+
+/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf:
+
+[keyfile]
+unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma
+
+To disable this, You can create a blank file with the same name in /etc:
+
+sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
+sudo systemctl restart NetworkManager