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CentOS8でIdeapad S540(14 ryzen)の内蔵無線LAN(RTL8822BE)を使えるようにする

Last updated at Posted at 2020-01-29

とりあえずこれでUSB無線アダプタを外せるようになった。

◆参考

https://forums.ubuntulinux.jp/viewtopic.php?id=19826
https://askubuntu.com/questions/1082335/bluetooth-and-wifi-not-working-on-ubuntu-14-04-rtl8822be-pcie/1082938

◆背景

[hoge@localhost ~]$ lspci -nn
〜省略〜
01:00.0 SD Host controller [0805]: O2 Micro, Inc. SD/MMC Card Reader Controller [1217:8621] (rev 01)
## ↓これを使いたい
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter [10ec:b822]
03:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981 [144d:a808]
〜〜省略

◆パッケージのインストール

sudo yum install git
sudo yum install elfutils-libelf-devel

◆ドライバのインストール

git clone https://github.com/lwfinger/rtlwifi_new.git
cd cd rtlwifi_new
git checkout -b extended origin/extended
make
sudo make install
sudo modprobe rtl8822be
sudo shutdown -r now
PC再起動

◆ファームウェアの導入

wget https://github.com/wkennington/linux-firmware/raw/master/rtlwifi/rtl8822befw.bin
sudo cp rtl8822befw.bin /lib/firmware/rtlwifi/
sudo shutdown -r now
PC再起動
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