On Monday, 16 October 2023 10:15:03 BST Tsukasa Mcp_Reznor wrote: > Well, you're probably gonna have to spam us some more info. > > On the working knoppix boot, spam lspci showing what driver is loaded. then > spam it on ubuntu to verify if it's loaded there as well. > > dmesg for the relevant parts on both would also help. > > I'd make sure ubuntu has linux-firmware installed, could simply be failing > if it's missing. > > ifconfig could show if it is loaded and just doesn't have an ip assigned, if > the mac address says 00:00:00:00:00 that'd be a different problem. [snip ...]
>From what I recall Ubuntu has been chopping & changing its network scripts on a regular basis. So in the first instance check what you're running on this system: systemctl status systemd-networkd or systemctl status NetworkManager I think the server version does not have NetworkManager and as your thread says, netplan is now (since early 2023?) used to configure the network connections: netplan status If netplan is running with renderer networkd, check the contents of your /etc/ netplan/01-netcfg.yaml, which you list your ethernet NIC and include "dhcp4: yes", then run: sudo netplan generate sudo netplan apply You may have to also restart networkd service: sudo systemctl restart systemd-networkd If the above does not work, you'll need to fish for error messages in dmesg and by running journalctl.
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