Você deve extrair o arquivo .deb
e depois copiá-lo para o seu drive USB, quando você for solicitado a carregar o firmware ausente, conecte o USB, há um exemplo:
mkdir bcm && cd bcm
wget http://ftp.us.debian.org/debian/pool/non-free/f/firmware-nonfree/firmware-brcm80211_20161130-3_all.deb
ar x firmware-brcm80211_20161130-3_all.deb
tar xvf data.tar.xz
cd /lib/firmware/brcm
ls
exemplo de saída:
bcm43xx-0.fw brcmfmac4330-sdio.bin brcmfmac4354-sdio.bin
bcm43xx_hdr-0.fw brcmfmac43340-sdio.bin brcmfmac43569.bin
brcmfmac43143.bin brcmfmac4334-sdio.bin brcmfmac4356-pcie.bin
brcmfmac43143-sdio.bin brcmfmac4335-sdio.bin brcmfmac43570-pcie.bin
brcmfmac43236b.bin brcmfmac43362-sdio.bin brcmfmac43602-pcie.ap.bin
brcmfmac43241b0-sdio.bin brcmfmac4339-sdio.bin brcmfmac43602-pcie.bin
brcmfmac43241b4-sdio.bin brcmfmac43430-sdio.bin brcmfmac4366b-pcie.bin
brcmfmac43241b5-sdio.bin brcmfmac43455-sdio.bin brcmfmac4371-pcie.bin
Copie o bcm43xx-0.fw
para o seu drive USB. repita os mesmos passos para o rtl_nic/rtl8168d-2.fw
O pacote de firmware = firmware-realtek
If the firmware was loaded from a firmware package, debian-installer will also install this package for the installed system and will automatically add the non-free section of the package archive in APT's sources.list. This has the advantage that the firmware should be updated automatically if a new version becomes available.
arquivos de firmware soltos = rtl_nic/rtl8168d-2.fw
If the firmware was loaded from loose firmware files, the firmware copied to the installed system will not be automatically updated unless the corresponding firmware package (if available) is installed after the installation is completed.