镜像环境
当前镜像 以mainline 版本为基线:
1、内核版本:raspberrrypi-kernel,基于 openEuler 20.09(4.19.138-2008.1.0)。
2、对外公开源地址:http://119.3.219.20:82/openEuler:/Mainline/,安装 NetworkManager-1:1.26.0-1.oe1
出现问题:wifi 无法使用
1、nmcli dev show wlan0,提示 wlan0 状态为:20 (unavailable)
2、nmcli dev wifi,显示可连接的 wifi 信息为空
4、nmcli dev wifi connect SSID password PASSWORD,提示找不到对应 SSID
5、查看 NetworkManager 服务状态:
● NetworkManager.service - Network Manager
Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
Drop-In: /usr/lib/systemd/system/NetworkManager.service.d
└─NetworkManager-ovs.conf
Active: active (running) since Fri 2020-07-31 03:02:41 CST; 3 weeks 6 days ago
Docs: man:NetworkManager(8)
Main PID: 913 (NetworkManager)
Tasks: 3 (limit: 4256)
Memory: 19.9M
CGroup: /system.slice/NetworkManager.service
└─913 /usr/sbin/NetworkManager --no-daemon
Jul 31 03:03:04 openEuler NetworkManager[913]: <error> [1596135784.6985] device (wlan0): Couldn't initialize supplicant interface: Timeout was reached
Jul 31 03:03:14 openEuler NetworkManager[913]: <warn> [1596135794.6889] device (wlan0): re-acquiring supplicant interface (#2).
Jul 31 03:03:19 openEuler NetworkManager[913]: <error> [1596135799.6931] device (wlan0): Couldn't initialize supplicant interface: Timeout was reached
Jul 31 03:03:29 openEuler NetworkManager[913]: <warn> [1596135809.6914] device (wlan0): re-acquiring supplicant interface (#3).
Jul 31 03:03:34 openEuler NetworkManager[913]: <error> [1596135814.6972] device (wlan0): Couldn't initialize supplicant interface: Timeout was reached
Jul 31 03:03:44 openEuler NetworkManager[913]: <warn> [1596135824.6977] device (wlan0): re-acquiring supplicant interface (#4).
Jul 31 03:03:49 openEuler NetworkManager[913]: <error> [1596135829.7036] device (wlan0): Couldn't initialize supplicant interface: Timeout was reached
Jul 31 03:03:59 openEuler NetworkManager[913]: <warn> [1596135839.6980] device (wlan0): re-acquiring supplicant interface (#5).
Jul 31 03:04:04 openEuler NetworkManager[913]: <error> [1596135844.7039] device (wlan0): Couldn't initialize supplicant interface: Timeout was reached
Jul 31 03:04:04 openEuler NetworkManager[913]: <info> [1596135844.7041] device (wlan0): supplicant interface keeps failing, giving up
当前解决方式1:重启 NetworkManager 服务
systemctl restart NetworkManager
但是,树莓派重启后问题依旧。
当前解决方式2:回退 NetworkManager 版本
安装当前 20.03-LTS 的软件源 中低版本的 NetworkManager-1.16.0-7后,重启 NetworkManager 服务:systemctl restart NetworkManager
具体原因待解决
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