[RESOLVED] Network configuration for migrating Ubuntu server to Fangtooth

Apps and Virtualization
1

Problem:

After migrating Ubuntu server VM from 24.10 to 25.04 (Incus VM) there is no network connection anymore.

Solution:

List all the network interfaces and see who is DOWN with:

ip link show (in my case “enp5s0” is DOWN)

Then edit this file:

nano /etc/netplan/00-installer-config.yaml

and change the network interface name to the new name (in my case “ens3” to “enp5s0”)

Reboot and network will work again.

1 Like
2

For me it was /etc/netplan/50-cloud-init.yaml on a relative recent/fresh install (nxt-nxt-finish) to get some container port conflicts resolved. The rest exactly as described. Change the name, save and restart.