ubuntu 更新网卡丢失

查看网卡设备信息

sudo lshw -c Network

设备 处于 description: Ethernet interface

root@linuxling-MoreFine-S500:/etc/netplan# sudo lshw -c Network*-networkdescription: Ethernet interfaceproduct: RTL8125 2.5GbE Controllervendor: Realtek Semiconductor Co., Ltd.physical id: 0bus info: pci@0000:02:00.0logical name: eno1version: 05serial: 70:70:fc:01:64:01capacity: 1Gbit/swidth: 64 bitsclock: 33MHzcapabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiationconfiguration: autonegotiation=on broadcast=yes driver=r8169 driverversion=6.8.0-40-generic duplex=full firmware=rtl8125b-2_0.0.2 07/13/20 ip=192.168.5.71 latency=0 link=yes multicast=yes port=twisted pairresources: irq:24 ioport:f000(size=256) memory:fce00000-fce0ffff memory:fce10000-fce13fff*-networkdescription: Ethernet interfaceproduct: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controllervendor: Realtek Semiconductor Co., Ltd.physical id: 0bus info: pci@0000:03:00.0logical name: enp3s0version: 15serial: 70:70:fc:01:64:02capacity: 1Gbit/swidth: 64 bitsclock: 33MHzcapabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiationconfiguration: autonegotiation=on broadcast=yes driver=r8169 driverversion=6.8.0-40-generic firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=twisted pairresources: irq:58 ioport:e000(size=256) memory:fcd04000-fcd04fff memory:fcd00000-fcd03fff*-networkdescription: Wireless interfaceproduct: Wi-Fi 6 AX200vendor: Intel Corporationphysical id: 0bus info: pci@0000:04:00.0logical name: wlp4s0version: 1aserial: 34:13:e8:b6:05:49width: 64 bitsclock: 33MHzcapabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wirelessconfiguration: broadcast=yes driver=iwlwifi driverversion=6.8.0-40-generic firmware=77.2df8986f.0 cc-a0-77.ucode ip=192.168.5.61 latency=0 link=yes multicast=yes wireless=IEEE 802.11resources: irq:79 memory:fcc00000-fcc03fff

执行以下两个命令

sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
sudo systemctl restart NetworkManager

碰到同样问题按这位大佬的方式处理的
原文地址： https://blog.csdn.net/netwalk/article/details/140117154