Hellow David, On Sun, 2024-02-04 at 13:41 -0600, David Wright wrote: > On Sun 04 Feb 2024 at 13:57:13 (+0900), Byunghee HWANG (황병희) wrote: > > On Fri, 2024-02-02 at 10:41 -0600, David Wright wrote: > > > On Fri 02 Feb 2024 at 07:37:34 (+0000), Tixy wrote: > > > > On Wed, 2024-01-31 at 22:12 -0600, David Wright wrote: > > > > > On Tue 30 Jan 2024 at 07:05:55 (+0000), Tixy wrote: > > > > > > I also have a more vague memory that you could put config > > > > > > into > > > > > > /etc/network/interfaces then in some circumstance > > > > > > NetworkManager would > > > > > > not try and manage that interface, and in others it would > > > > > > take over. > > > > > > (Perhaps selected by allow hotplug option in the ifupdown > > > > > > config?) > > > > > > > > > > That seems unlikely. Perhaps you're thinking of NM's ifupdown > > > > > plugin > > > > > that allows you to use the configuration in /e/n/i. I'm > > > > > assuming the > > > > > OP has not installed that in their sleep. > > > > > > > > They wouldn't need to because it looks like it's shipped with > > > > the main > > > > network-manage package which contains various files with > > > > 'plugin' in > > > > their name, including libnm-settings-plugin-ifupdown.so. > > > > > > What I said was unlikely is that an option in ifupdown's > > > configuration, > > > /e/n/i, would control NM's behaviour. It's the mere mention of > > > the > > > interface there, as in iface enp5s0 inet dhcp that makes > > > ifupdown > > > control it, and makes NM back off, AIUI. > > > > > > > As we've seen from the OPs latest reply, the plugin is > > > > configured to > > > > not manage interfaces. > > > > > > Right, and so the default NM configuration (ifupdown plugin > > > present, > > > news to me) and [ifupdown] // managed=false in the .conf > > > file, > > > means that NM should not, by default, configure any interface > > > mentioned in /e/n/i. In the OP's case, the original /e/n/i: > > > -rw-r--r-- 1 root root 433 Oct 4 17:23 interfaces.orig > > > is big enough to hold a typical lo+eth+wlan configuration, which > > > we haven't seen yet. > > > > Sorry for late, David! > > That's the beauty of mailing lists: it just doesn't matter. > > > root@thinkpad-e495:/etc/network# cat interfaces.orig > > # This file describes the network interfaces available on your > > system > > # and how to activate them. For more information, see > > interfaces(5). > > > > source /etc/network/interfaces.d/* > > > > # The loopback network interface > > auto lo > > iface lo inet loopback > > > > # The primary network interface > > allow-hotplug wlp4s0 > > iface wlp4s0 inet dhcp > > # wireless-* options are implemented by the wireless-tools > > package > > wireless-mode managed > > wireless-essid V30_3982 > > root@thinkpad-e495:/etc/network# date > > So it would appear that your question is exactly as in the reference > you quoted, that ifupdown was configuring wlp4s0 when /w/n/i was > in place, resulting in NM displaying a question mark. Now you've > removed it, NM has taken over. That's just as in the first answer > (Stephen Kitt Jul 23, 2018 7:00), except for the minor detail that > Kitt mentions one should down the interface before moving /e/n/i > if one wants to make the change cleanly, without rebooting. > > (Frequently, people forget that /e/n/i is reread by ifupdown > whenever you run its binaries; that's different from how many > other programs treat their configuration files.) > > > 1. I have never touched the inside of that file. > > 2. I guess the real original file was from Debian 12. > > Not knowing the history of your installation, I wouldn't like > to guess exactly how NM and ifupdown arrived at your earlier > situation. But to answer the question posed in your OP, > there's no bug here—just two wifi configuration methods > being prioritised in accordance with their design. > > Cheers, > David.
Thank you for confirming that this is not a bug. And thank you to Max and Tixy for participating in this discussion. I'm happy now. Also Debian Sid are good for desktop, i think. Sincerely, Byunghee -- ^고맙습니다 _布德天下_ 감사합니다_^))//
