Hellow David, On Mon, 2024-01-29 at 23:49 -0600, David Wright wrote: > On Tue 30 Jan 2024 at 10:13:34 (+0900), Byunghee HWANG (황병희) wrote: > > On Mon, 2024-01-29 at 09:35 -0600, David Wright wrote: > > > On Mon 29 Jan 2024 at 21:36:39 (+0900), Byunghee HWANG (황병희) > > > wrote: > > > > > > > > For months ago, i did upgrade Debian 12 to Debian Sid. At that > > > > time, > > > > Gnome network icon was odd. That appered as like question mark. > > > > So > > > > after i googling, i removed some file in /etc. Then OK! The > > > > Internet is > > > > started. (i did googling with smartphone). > > > > > > > > <quote> > > > > soyeomul@thinkpad-e495:/etc/network$ LANG=C.UTF-8 ls -l > > > > total 24 > > > > drwxr-xr-x 2 root root 4096 Jan 7 18:51 if-down.d > > > > drwxr-xr-x 2 root root 4096 Jan 8 19:45 if-post-down.d > > > > drwxr-xr-x 2 root root 4096 Jan 8 19:45 if-pre-up.d > > > > drwxr-xr-x 2 root root 4096 Jan 7 18:51 if-up.d > > > > drwxr-xr-x 2 root root 4096 Jan 24 2023 interfaces.d > > > > -rw-r--r-- 1 root root 433 Oct 4 17:23 interfaces.orig > > > > soyeomul@thinkpad-e495:/etc/network$ > > > > </quote> > > > > > > > > As you see above, i removed /etc/network/interfaces file. > > > > Anyway > > > > now it > > > > works everything! No problem! > > > > > > > > Is this a bug? Or am i wrong? > > > > > > > > Ref: > > > > https://unix.stackexchange.com/questions/457856/how-to-fix-debians-networkmanager-with-question-mark-even-though-network-is-wor > > > > > > AIUI there are several network configuration tools that defer to > > > configurations that are set up in /e/n/i, which would be handled > > > by ifupdown preferentially. Generally, removing /e/n/i > > > completely, > > > as you have, is fine. One side effect is that any entries in > > > /e/n/interfaces.d/ will also be disabled. > > > > > > The only machine on which I keep /e/n/i and ifupdown is my > > > travelling > > > laptop, for tethering with my phone: > > > > > > allow-hotplug usb0 > > > > > > iface usb0 inet dhcp > > > > > > BTW I don't know why you're running sid, but it's generally > > > expected > > > that sid users would be familiar with stuff like this, > > > particularly > > > as your question is already answered in the reference. > > > > In frankly, i don't know interface things and network tools. > > Whenever I > > use the default value, just as it is. So still i don't understand > > your > > reply message in technically. > > You have Gnome installed, which implies you configure the network > with > something like NetworkManager. > > You /had/ a file called /etc/network/interfaces, which implied you > were > configuring the network with ifupdown. > > If you try to configure the same /interface/ (which could be called > something like eth0) with both NetworkManager and ifupdown, then > NetworkManager should back off and let ifupdown do the configuring. > > I can't tell you whether that makes Gnome display a question mark, > but > others might know. (I don't use Gnome, NetworkManager, or ifupdown.)
You see here: https://gitlab.com/soyeomul/stuff/-/commit/6796b4fcd3fb3b0e5228b20ecd3209d7d1de0af4 I reproduced the odd screenshot -- question mark. I restored the file /e/n/i as you know. > > When you renamed the file to /etc/network/interfaces.orig, then > ifupdown can no longer read it, nor take priority over > NetworkManager, > and NetworkManager should be happy to configure the interface itself. > The question mark should go away. (Do you get a happy face displayed > instead, or is NetworkManager more boring than that?) > > I would tend to think that: > > . The debian-installer installs ifupdown by default when you don't > install a Desktop Manager like Gnome, > > . The debian-installer installs NetworkManager by default if you do > install a Desktop Manager like Gnome, > > . It shouldn't do both. > > But, if you upgrade an ifupdown-system and add NetworkManager in > whatever way, then it's up to you to remove/hide any ifupdown > configuration that you want NetworkManager to perform. That's > probably what you did by renaming the file. > Thank you for your kind and detailed analysis, David! I will refer to your analysis the next time i encounter a similar difficulty. Sincerely, Byunghee -- ^고맙습니다 _布德天下_ 감사합니다_^))//
