重新安装linux-modules软件包后重新启用wifi模块
当我卸载未使用的旧内核时，我不小心卸载了这些软件包：
linux-modules-4.15.0-23-generic linux-modules-extra-4.15.0-23-generic 它禁用了我的wifi适配器。
现在重新安装后，系统设置中找不到Wifi适配器
我的笔记本电脑没有WiFi按钮，我迷路了，如何寻找合适的模块重新启用。
我检查了这个QA ：
$ lspci -nnk | grep 0280 -A2 02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78) Subsystem: Intel Corporation Wireless 8265 / 8275 [8086:1010] Kernel modules: iwlwifi $ rfkill list all 0: ideapad_bluetooth: Bluetooth Soft blocked: no Hard blocked: no 1: hci0: Bluetooth Soft blocked: no Hard blocked: no $ dmesg | grep iwl [ 4.670669] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8265-34.ucode failed with error -2 ... [ 4.674111] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8265-22.ucode failed with error -2 [ 4.674113] iwlwifi 0000:02:00.0: no suitable firmware found! [ 4.675206] iwlwifi 0000:02:00.0: minimum version required: iwlwifi-8265-22 [ 4.676197] iwlwifi 0000:02:00.0: maximum version supported: iwlwifi-8265-34 [ 4.677331] iwlwifi 0000:02:00.0: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git $ lsmod|grep iw iwlwifi 282624 0 cfg80211 622592 1 iwlwifi
如何在Lenovo Yoga 720-15IKb上重新启用该模块？
似乎缺少软件包linux-firmware：
$ apt-file find iwlwifi-8265-34.ucode linux-firmware: /lib/firmware/iwlwifi-8265-34.ucode $ LANG=c dpkg -s linux-firmware dpkg-query: package 'linux-firmware' is not installed
尝试
apt install linux-firmware
并重新启动。
这对我有用！