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I'm a beginner when it comes to linux troubleshooting so bear with me. I'm trying to install Debian on new hardware and I've run into an issue I haven't encountered with my previous two computers. The installer won't detect either the wired/wireless network hardware and I can't seem to find a solution. There are no issues in Windows 10 so it definitely isn't a hardware problem.

I'm using the Gigabyte B550 ITX

Network hardware:

  • Realtek 2.5GbE LAN chip (2.5 Gbit/1 Gbit/100 Mbit)
  • Intel Wi-Fi 6 AX200

I've tried:

  1. the basic net installer
  2. the net installer with the unpacked tarball for the realtek and intel drivers in the firmware folder
  3. the full installer that includes non-free firmware

I'm at a loss as to what to try next. Any help getting this machine up and running would be greatly appreciated, thanks for your time.

Edit: So while I was looking around I saw that there will apparently be better hardware compatibility with the newer kernel that will be shipping with Debian 11. I gave the installer a chance, this time it recognized that my motherboard's network hardware needed non-free firmware. (it spit out quite the list but the net installer can't download it)

I'm not to keen on running a potentially unstable OS but I imagine it can't be worse than W10... any thoughts on how I should proceed?

Gabriel
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  • Use USB-tethering during the install, and install the kernel from backports, and the firmwares from "non-free". – Alex Stragies May 25 '21 at 19:13
  • Can you elaborate on this? So I should be able to tether from my phone which is connected to wifi? Install kernel from backports? I'm guessing this is done via command line. – Gabriel May 25 '21 at 19:37
  • Debian 10 uses a 4.19 kernel but there are backports of the 5.10 kernel/firmware which can be installed. There is no guarantee that this will fix your networking. I've been using 5.10.0-0.bpo.5-amd64 for the last few months on the Debian version of Mint [LMDE] and it appears to be completely stable. – Jeremy Boden May 26 '21 at 18:55
  • I managed to get the debian 11 (testing) installer to recognize the intel wireless adapter using a second USB, but now I've run into another problem.

    I'm getting this error message after using my network passphrase: "Failure of key exchange and association"

    Does anyone have an explanation/fix for this error?

     – Gabriel Jun 22 '21 at 23:38

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