I'm new to working with Linux, before that I had onу Linux Mint.
I installed Debian 11 from a bootable USB stick. I tried to install from the netinst version of iso, but I could not connect to the hidden network, so I installed the main system without a graphical shell.
After that, I decided to install from the image of the base system (4.7GB) with the GNOME shell. The installer required an ap for the network card, I added this file to iso and booted the system without access to the Internet.
I expected to be able to connect to the hidden network without problems, but in the system settings under Wi-Fi there was an inscription "Missing firmware".
- My network card is Realtek.
- And USB Wi-Fi Modem.
I downloaded a lot of non-free deb packages to a USB flash drive - realtek-firmware, Linux-firmware-non-free, but nothing changed.
I noticed that when the system starts, when the components are loaded, the last gray inscription says the absence of rt28070.bin. I found it and uploaded it to the /etc/firmware folder.
After that, the inscription "Missing firmware" disappeared. But no network was detected, it also did not work to connect directly.
Please tell me how to fix this error?