Essa dica serve para usuários de Ubuntu, Debian, Mint e derivados.

Problema

Após instalar ou atualizar o sistema, você recebe a seguinte mensagem de erro ao usar o apt ou durante a inicialização da máquina:

W: Possible missing firmware /lib/firmware/rtl_nic/rtl8107e-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8107e-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168h-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168h-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168g-3.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168g-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8106e-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8106e-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8411-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8411-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8402-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168f-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168f-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8105e-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168e-3.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168e-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168e-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168d-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168d-1.fw for module r8169
W: Possible missing firmware /lib/firmware/i915/bxt_dmc_ver1_07.bin for module i915
W: Possible missing firmware /lib/firmware/i915/skl_dmc_ver1_27.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1_04.bin for module i915
W: Possible missing firmware /lib/firmware/i915/cnl_dmc_ver1_07.bin for module i915
W: Possible missing firmware /lib/firmware/i915/glk_dmc_ver1_04.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_39.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_ver9_29.bin for module i915
W: Possible missing firmware /lib/firmware/i915/skl_guc_ver9_33.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_huc_ver02_00_1810.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_huc_ver01_07_1398.bin for module i915
W: Possible missing firmware /lib/firmware/i915/skl_huc_ver01_07_1398.bin for module i915

Solução

Bom, não é preciso ser expert em Inglês para saber que tem algum arquivo faltando né? Então vamos descobrir quais são os pacotes que preciso instalar para suprir nossas necessidades. Para isso utilizarei o apt-file:

sudo apt install apt-file

Criar/atualizar a lista de arquivos do apt-file:

sudo apt-file update

Agora vou pegar o arquivo da primeira mensagem de erro do módulo r8169 e executar:

apt-file search rtl8107e-2.fw
firmware-realtek: /lib/firmware/rtl_nic/rtl8107e-2.fw

Como resultado descobrimos que o pacote necessário é o firmware-realtek.

Agora vou pegar o arquivo da primeira mensagem de erro do módulo i915 e executar:

apt-file search bxt_dmc_ver1_07.bin
firmware-misc-nonfree: /lib/firmware/i915/bxt_dmc_ver1_07.bin

Então para resolvermos nosso problema basta instalar os bixão que descobrimos:

sudo apt install firmware-realtek firmware-misc-nonfree

Até a próxima!