How to manually install WiFi firmware on Debian Live?

From	Cmdte Alpha Tigre Z <santiagopinth@gmail.com>
Newsgroups	linux.debian.user
Subject	How to manually install WiFi firmware on Debian Live?
Date	2021-03-12 01:40 +0100
Message-ID	<BRE0q-1pZ-9@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hello.

I tried to make a "Realtek RTL8191SU Wireless LAN 802.11n USB 2.0
Network Adapter" work on Debian 10 Live with LXDE, but I couldn't.
Here is what I already have tried:

1-. Downloaded package firmware-realtek from package.debian.org.
2-. Booted Debian Live.
3-. Copied package from hard disk to the desktop (apt complains when
I load it directly).
4-. Executed: sudo apt install firmware-realtek
5-. Executed: sudo depmod -a
6-. Executed: sudo modprobe r8712u

Then, Wicd didn't show anything.  I ran udevadm, I don't remember how,
to see if the USB WiFi adapter was detected; it was and also
the module r8712u was loaded for it.

I need some help here, please.  I don't want to use a non-free firmware
live image.  Thanks.

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Thread

How to manually install WiFi firmware on Debian Live? Cmdte Alpha Tigre Z <santiagopinth@gmail.com> - 2021-03-12 01:40 +0100
  Re: How to manually install WiFi firmware on Debian Live? IL Ka <kazakevichilya@gmail.com> - 2021-03-12 02:00 +0100
    Re: How to manually install WiFi firmware on Debian Live? Anssi Saari <as@sci.fi> - 2021-03-12 10:20 +0100
  Re: How to manually install WiFi firmware on Debian Live? Charles Curley <charlescurley@charlescurley.com> - 2021-03-12 04:40 +0100
  Re: How to manually install WiFi firmware on Debian Live? Cmdte Alpha Tigre Z <santiagopinth@gmail.com> - 2021-03-12 14:10 +0100
  Re: How to manually install WiFi firmware on Debian Live? Brian <ad44@cityscape.co.uk> - 2021-03-12 15:10 +0100
    Re: How to manually install WiFi firmware on Debian Live? Brian <ad44@cityscape.co.uk> - 2021-03-12 15:30 +0100
      Re: How to manually install WiFi firmware on Debian Live? Cmdte Alpha Tigre Z <santiagopinth@gmail.com> - 2021-03-12 17:30 +0100
  Re: How to manually install WiFi firmware on Debian Live? Anssi Saari <as@sci.fi> - 2021-03-12 19:20 +0100
    Re: How to manually install WiFi firmware on Debian Live? deloptes <deloptes@gmail.com> - 2021-03-13 00:20 +0100
      Re: How to manually install WiFi firmware on Debian Live? David Wright <deblis@lionunicorn.co.uk> - 2021-03-13 01:20 +0100
      Re: How to manually install WiFi firmware on Debian Live? Anssi Saari <as@sci.fi> - 2021-03-13 09:10 +0100
        Re: How to manually install WiFi firmware on Debian Live? Tixy <tixy@yxit.co.uk> - 2021-03-13 11:10 +0100
          Re: How to manually install WiFi firmware on Debian Live? Anssi Saari <as@sci.fi> - 2021-03-15 17:50 +0100
            Re: How to manually install WiFi firmware on Debian Live? Kenneth Parker <sea7kenp@gmail.com> - 2021-03-15 18:10 +0100
              Re: How to manually install WiFi firmware on Debian Live? Anssi Saari <as@sci.fi> - 2021-03-15 21:50 +0100
                Re: How to manually install WiFi firmware on Debian Live? Kenneth Parker <sea7kenp@gmail.com> - 2021-03-16 04:50 +0100

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