Package: base
Severity: important

Dear Maintainer,

After a recent routine update to my Debian installation, my wireless interface
disappeared and my system was unable to do anything related to wifi.

When running `iwconfig` all of my interfaces said "no wireless extensions"

Neither using an older kernel nor downgrading network-manager solved the
problem for me.

Eventually, I was able to rollback the offending update by using the `apt-
history` script and the snapshot repo, which fixed my system and allowed me to
use wifi again.

Here is the apt/history.log entry for the rollback:
-------
Downgrade: libgoa-backend-1.0-1:amd64 (3.38.0-1, 3.37.90-2),
python3-texttable:amd64 (1.6.3-1, 1.6.2-2), libavformat58:amd64 (7:4.3.1-5,
7:4.3.1-4), libkf5idletime5:amd64 (5.74.0-2, 5.70.0-1), libavfilter7:amd64
(7:4.3.1-5, 7:4.3.1-4), libaa1:amd64 (1.4p5-48, 1.4p5-46+b1),
libgphoto2-port12:amd64 (2.5.26-2, 2.5.26-1), libpackagekit-glib2-18:amd64
(1.2.1-1, 1.1.13-2+b1), gir1.2-nm-1.0:amd64 (1.27.91-1, 1.27.90-3), osinfo-
db:amd64 (0.20201015-1, 0.20200325-1), linux-libc-dev:amd64 (5.9.1-1,
5.8.14-1), libldap-2.4-2:amd64 (2.4.54+dfsg-1, 2.4.53+dfsg-1),
libgphoto2-6:amd64 (2.5.26-2, 2.5.26-1), libgoa-1.0-0b:amd64 (3.38.0-1,
3.37.90-2), libgoa-1.0-common:amd64 (3.38.0-1, 3.37.90-2), libswresample3:amd64
(7:4.3.1-5, 7:4.3.1-4), libipt2:amd64 (2.0.3-1, 2.0.2-1), libraw20:amd64
(0.20.2-1, 0.20.0-4), libhandy-1-0:amd64 (1.0.0-3, 1.0.0-2), libvdeplug2:amd64
(4.0.1-2, 2.3.2+r586-7), python3-brlapi:amd64 (6.1+dfsg-2, 6.0+dfsg-6+b1),
qemu-system-x86:amd64 (1:5.1+dfsg-4+b1, 1:5.1+dfsg-4),
libkf5waylandclient5:amd64 (4:5.74.0-2, 4:5.70.0-1), libgphoto2-l10n:amd64
(2.5.26-2, 2.5.26-1), libdca0:amd64 (0.0.7-2, 0.0.7-1), xbrlapi:amd64
(6.1+dfsg-2, 6.0+dfsg-6+b1), cmake-data:amd64 (3.18.4-1, 3.18.2-1), packagekit-
tools:amd64 (1.2.1-1, 1.1.13-2+b1), insomnia:amd64 (2020.4.2, 2020.4.1),
python3-requests:amd64 (2.24.0+dfsg-1, 2.23.0+dfsg-2), libpostproc55:amd64
(7:4.3.1-5, 7:4.3.1-4), rsyslog:amd64 (8.2010.0-1, 8.2008.0-1),
python3-cups:amd64 (2.0.1-4, 2.0.1-3+b1), kwayland-data:amd64 (4:5.74.0-2,
4:5.70.0-1), libunbound8:amd64 (1.12.0-1, 1.11.0-1), qemu:amd64
(1:5.1+dfsg-4+b1, 1:5.1+dfsg-4), libnss-nisplus:amd64 (1.3-4, 1.3-3), libnss-
nis:amd64 (3.1-4, 3.1-3), qemu-utils:amd64 (1:5.1+dfsg-4+b1, 1:5.1+dfsg-4),
libfreetype6-dev:amd64 (2.10.2+dfsg-4, 2.10.2+dfsg-3), linux-image-amd64:amd64
(5.9.1-1, 5.8.14-1), libldap-common:amd64 (2.4.54+dfsg-1, 2.4.53+dfsg-1),
libkf5guiaddons5:amd64 (5.74.0-3, 5.70.0-2), libjack-jackd2-0:amd64
(1.9.16~dfsg-1, 1.9.14~dfsg-1), libavcodec58:amd64 (7:4.3.1-5, 7:4.3.1-4),
libavutil56:amd64 (7:4.3.1-5, 7:4.3.1-4), python3-yaml:amd64 (5.3.1-3,
5.3.1-2+b1), linux-headers-amd64:amd64 (5.9.1-1, 5.8.14-1), libpcaudio0:amd64
(1.1-6, 1.1-5), packagekit:amd64 (1.2.1-1, 1.1.13-2+b1), gir1.2-goa-1.0:amd64
(3.38.0-1, 3.37.90-2), gnome-online-accounts:amd64 (3.38.0-1, 3.37.90-2),
fonts-ipafont-gothic:amd64 (00303-21, 00303-20), libkf5windowsystem5:amd64
(5.74.0-2, 5.70.0-1), iproute2:amd64 (5.9.0-1, 5.8.0-1), libswscale5:amd64
(7:4.3.1-5, 7:4.3.1-4), linux-compiler-gcc-10-x86:amd64 (5.9.1-1, 5.8.14-1),
gnome-nibbles:amd64 (1:3.38.1-1, 1:3.38.0-1), gir1.2-packagekitglib-1.0:amd64
(1.2.1-1, 1.1.13-2+b1), cmake:amd64 (3.18.4-1, 3.18.2-1), libnss3:amd64
(2:3.58-1, 2:3.56-1), libfreetype6:amd64 (2.10.2+dfsg-4, 2.10.2+dfsg-3),
libkf5windowsystem-data:amd64 (5.74.0-2, 5.70.0-1), libglib-object-
introspection-perl:amd64 (0.049-1, 0.048-2), python3-traitlets:amd64 (5.0.5-1,
5.0.4-1), fonts-ipafont-mincho:amd64 (00303-21, 00303-20), python3-lxml:amd64
(4.6.1-1, 4.5.2-1+b1), libnpth0:amd64 (1.6-3, 1.6-2),
gstreamer1.0-packagekit:amd64 (1.2.1-1, 1.1.13-2+b1), liburi-perl:amd64
(5.05-1, 1.76-2), qemu-system-common:amd64 (1:5.1+dfsg-4+b1, 1:5.1+dfsg-4),
libavresample4:amd64 (7:4.3.1-5, 7:4.3.1-4), libnspr4:amd64 (2:4.29-1,
2:4.28-1), gir1.2-handy-1:amd64 (1.0.0-3, 1.0.0-2), libfaad2:amd64 (2.10.0-1,
2.9.2-1), qemu-system-gui:amd64 (1:5.1+dfsg-4+b1, 1:5.1+dfsg-4), xterm:amd64
(361-1, 360-1), tzdata:amd64 (2020d-1, 2020b-1), docker.io:amd64
(19.03.13+dfsg1-3, 19.03.13+dfsg1-2), libfreetype-dev:amd64 (2.10.2+dfsg-4,
2.10.2+dfsg-3)
End-Date: 2020-10-28  12:31:51
-------

I have looked through this list, but cannot see any package that seems it could
be related to this issue (hence my bug report to 'base'), nevertheless rolling
back this update did fix the issue for me.



-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 5.9.0-1-amd64 (SMP w/12 CPU threads)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

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