我有一个带有 Intel I219-V NIC 的 NUC。它正在运行实时服务器，因此我无法进行实验，但我想尝试一下核实当我重新安装时，最新的 Debian Bullseye 是否可以在没有非免费固件的情况下运行。
装置：
$ lspci | grep I219-V
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (4) I219-V (rev 21)
司机：
$ find /sys | grep drivers.*00:1f.6
/sys/bus/pci/drivers/e1000e/0000:00:1f.6
司机信息：
$ sudo modinfo e1000e | grep ver
filename: /lib/modules/5.10.0-0.bpo.9-amd64/kernel/drivers/net/ethernet/intel/e1000e/e1000e.ko
description: Intel(R) PRO/1000 Network Driver
vermagic: 5.10.0-0.bpo.9-amd64 SMP mod_unload modversions
我从这里到哪里去确定我是否需要该设备的非免费固件？
根据评论中的建议，以下是输出sudo dmesg | grep firmware：
$ sudo dmesg | grep firmware
[ 0.095703] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 3.905222] platform regulatory.0: firmware: failed to load regulatory.db (-2)
[ 3.905279] firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware
[ 3.905339] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 3.940963] iwlwifi 0000:3a:00.0: firmware: direct-loading firmware iwlwifi-8265-36.ucode
[ 3.941628] iwlwifi 0000:3a:00.0: loaded firmware version 36.9f0a2d68.0 8265-36.ucode op_mode iwlmvm
[ 3.941652] iwlwifi 0000:3a:00.0: firmware: failed to load iwl-debug-yoyo.bin (-2)
[ 4.266926] i915 0000:00:02.0: firmware: direct-loading firmware i915/kbl_dmc_ver1_04.bin
[ 4.267276] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
[ 4.579111] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 4.580014] bluetooth hci0: firmware: direct-loading firmware intel/ibt-12-16.sfi
[ 4.580017] Bluetooth: hci0: Found device firmware: intel/ibt-12-16.sfi
[ 6.491998] Bluetooth: hci0: Waiting for firmware download to complete
[ 6.510143] bluetooth hci0: firmware: direct-loading firmware intel/ibt-12-16.ddc
这里不提网卡。还，sudo dmesg | grep e1000e：
$ sudo dmesg | grep e1000e
[ 1.573441] e1000e: Intel(R) PRO/1000 Network Driver
[ 1.573442] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 1.573686] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[ 1.779875] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered PHC clock
[ 1.851416] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) 94:c6:91:18:06:06
[ 1.851419] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection
[ 1.851508] e1000e 0000:00:1f.6 eth0: MAC: 12, PHY: 12, PBA No: FFFFFF-0FF
[ 1.853178] e1000e 0000:00:1f.6 eno1: renamed from eth0
[ 7.172001] e1000e 0000:00:1f.6 eno1: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
我没有使用 wifi，也不关心网卡。这是否意味着我不需要以太网 NIC 的非免费固件？