//查看dmesg发现如下
➜ ~ sudo dmesg | grep "iwl*"
[ 5.199752] iwlwifi 0002:21:00.0: enabling device (0000 -> 0002)
[ 5.200892] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-36.ucode failed with error -2
[ 5.200929] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-35.ucode failed with error -2
[ 5.200962] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-34.ucode failed with error -2
[ 5.200994] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-33.ucode failed with error -2
[ 5.201026] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-32.ucode failed with error -2
[ 5.201058] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-31.ucode failed with error -2
[ 5.201089] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-30.ucode failed with error -2
[ 5.201122] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-29.ucode failed with error -2
[ 5.201153] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-28.ucode failed with error -2
[ 5.201185] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-27.ucode failed with error -2
[ 5.201217] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-26.ucode failed with error -2
[ 5.201248] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-25.ucode failed with error -2
[ 5.201280] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-24.ucode failed with error -2
[ 5.201311] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-23.ucode failed with error -2
[ 5.201343] iwlwifi 0002:21:00.0: Direct firmware load for iwlwifi-8265-22.ucode failed with error -2
[ 5.201351] iwlwifi 0002:21:00.0: no suitable firmware found!
[ 5.201358] iwlwifi 0002:21:00.0: minimum version required: iwlwifi-8265-22
[ 5.201363] iwlwifi 0002:21:00.0: maximum version supported: iwlwifi-8265-36
[ 5.201369] iwlwifi 0002:21:00.0: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git