| brandonkal | systemd-networkd-wait-online.service is basically slowing startup by 2min. It's waiting for interfaces which never go up. Is there a way to tell it to ignore all but one interface or otherwise fix it? | 00:21 |
|---|---|---|
| rfm | brandonkal, mark the interfaces as "optional: true" in netplan... | 00:27 |
| brandonkal | I've done that but it seems the system generates random interfaces. There should only be two but I've got a whole lot... | 00:28 |
| brandonkal | rfm Could snap packages be generating cruft here? | 00:29 |
| rfm | brandonkal, never seen snap generate net interfaces, container stuff like docker, yes.. | 00:31 |
| rfm | brandonkal, are there systemd network units for these strange interfaces? if so need to find out who's generating them... | 00:31 |
| brandonkal | I have docker, but typically when I've done that it only added a docker0 | 00:32 |
| brandonkal | I have br-a8c7c,docker0,eno0,enp7s0f1,ens5f0,ens5f1,lo,veth4bc9,virbr0 | 00:32 |
| brandonkal | And also an IP on br-a8c7ce24a6eb | 00:33 |
| brandonkal | I did have an eth4 and eth5 earlier as references in my netplan file. | 00:33 |
| brandonkal | How does one check for that. Thanks rfm | 00:34 |
| rfm | brandonkal, I'd start with "sudo lshw -C network" to see what those other interfaces are, and put entries in netplan matching on MAC address (not the interface name, which can change around on PCIe) to mark them optional | 00:38 |
| brandonkal | Thanks. That lists the ones that went missing such as eth3,eth4. Now I recall I have a 4-port pcie eth card that was previously passed through to a VM. Is there a way to disable those ports when not being passed through? rfm | 00:47 |
| rfm | brandonkal, I guess you could blacklist the driver. not anything I've ever done. also could disable networking on those interfaces in /etc/sysctl.conf, but I can't tell you the syntax offhand | 00:53 |
| brandonkal | Ok thanks, I'll look into those options. It's interesting because based on this: https://unix.stackexchange.com/questions/134483/why-is-my-ethernet-interface-called-enp0s10-instead-of-eth0 I shouldn't be seeing ehtX on some of those ports. | 00:56 |
| rfm | brandonkal, this is all controlled in the udev rules, perhaps you (or somebody else) tweaked them sometime? | 00:59 |
| rfm | brandonkal, that's why I use MAC matching, that doesn't change around... | 01:00 |
| brandonkal | Installed NetworkManager for Cockpit and uninstalled but I suspect it left some cruft behind... | 01:02 |
| brandonkal | I will be switching to mac | 01:02 |
| JanC | MAC addresses can change too... | 08:41 |
| tuxick | usually not | 13:21 |
| === genii-core is now known as genii | ||
| daevski | Trying to setup wifi on ubuntu 20.04 server using netplan and getting some output I'm not understanding... https://pastebin.com/g0fWUBYy | 17:33 |
| === Walex_away is now known as Walex | ||
| tomreyn | daevski: while this configuration seems to be in line with https://netplan.io/examples/#connecting-to-a-wpa-personal-wireless-network i also seem to remember that systemd-networkd does not actually work well with setting up a wireless connection, and you should be using network-manager for it. this info may be outdated or just wrong, i suggest studying bug reports. | 19:48 |
| daevski | Can I use NetworkManager on the server edition without a gui? | 19:49 |
| tomreyn | sure | 19:49 |
| tomreyn | there is nmcli and nmtui | 19:50 |
| daevski | Okay, I will try those. Thanks for the tip! | 19:50 |
| tomreyn | note also that netplan.org points to #netplan for support | 19:50 |
| tomreyn | https://netplan.io/examples/#using-network-manager-as-a-renderer | 19:51 |
| tomreyn | "You can specify which network backend should be used to configure particular devices by using the renderer key." | 19:52 |
| tomreyn | so this seems to suggest that you can use networkd for ethernet and networkmanager for wireless | 19:54 |
| tomreyn | networkmanager is a bit resource hungry and slow sadly, which is why you may want to only use it where you have to. | 19:55 |
| === daevski3 is now known as daevski | ||
| daevski | tomreyn great info, thanks again :) | 20:09 |
| tomreyn | you're welcome | 20:09 |
| === Woet_ is now known as Woet | ||
| === genii is now known as genii-core | ||
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