Re: installer can't detect my usb adapter

[David Wright <deblis@lionunicorn.co.uk>]

On Tue 03 Jan 2023 at 08:52:07 (+0800), lou wrote:
> On 1/3/23 08:41, Timothy M Butterworth wrote:
> > 
> > Which installation medium are you using? I have a RealTek WiFi
> > adapter and it requires the non-free installer for binary blobs to
> > work.
> > 
> > https://cdimage.debian.org/images/unofficial/non-free/images-including-firmware/11.6.0+nonfree/amd64/iso-dvd/
> > 
> Thank Tim, i use debian-11.6.0-amd64-netinst.iso, i don't use
> unofficial images
> 
> after recognition it shall prompt me for non-free firmware, but it
> can't recognize it

One approach you might be able to use is to copy the firmware that
buster is using and place it in the equivalent location in your
bullseye.

For example, my NIC uses (as seen by dmesg):

  r8169 0000:03:00.0: firmware: direct-loading firmware rtl_nic/rtl8168g-2.fw

and my old buster installation on this machine has that file at:

  $ ls -l /buster/lib/firmware/rtl_nic/rtl8168g-2.fw 
  -rw-r--r-- 1 root root 4896 Aug 22  2019 /buster/lib/firmware/rtl_nic/rtl8168g-2.fw
  $ 

(/buster is where I mounted the old buster root filesystem,
readonly, when bullseye is running.)

My bullseye has:

  $ ls -l /lib/firmware/rtl_nic/rtl8168g-2.fw 
  -rw-r--r-- 1 root root 4896 Jul 25  2021 /lib/firmware/rtl_nic/rtl8168g-2.fw
  $ 

and cmp shows that the two versions are identical, despite the timestamps.

Just take care to create any subdirectories required (like the rtl_nic
here).

Cheers,
David.