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. Cheers, David.
