在Ubuntu 20.04上使用Apple Thunderbolt 2以太网适配器

Question

我在我的2014年Macbook Pro上安装了Ubuntu20.04Server，所有这些都与USB到以太网适配器一起工作得很好。然而，当我尝试使用Thunderbolt 2到以太网适配器时，我无法使网络连接正常工作。运行ip a会显示(我认为是) Thunderbolt接口(ens9)被关闭，所以我运行了sudo ip link ens9 up。然后，Macbook作为设备出现在我的路由器上，但我仍然无法访问它(在它上运行的web服务器可以与USB适配器正常工作)。运行ping google.com提供：ping: google.com: Temporary failure in name resolution。

我没有安装任何驱动程序，只是简单地插入雷霆适配器和引导。很乐意为您提供一些疑难解答。提前感谢！

编辑:运行cat /etc/netplan/*.yaml提供：

# This is the network config written in 'subiquity'
network:
  ethernets:
    enx00f76f6f62ca:
      dhcp4: true
    version: 2

运行sudo lshw -C network会给出：

  *-network
       description: Network controller
       product: BCM4360 802.11ac Wireless Network Adapter
       vendor: Broadcom Inc. and subsidiaries
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 03
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=bcma-pci-bridge latency=0
       resources: irq:18 memory:b0600000-b0607fff memory:b0400000-b05fffff
  *-network DISABLED
       description: Ethernet interface
       product: NetXtreme BCM57762 Gigabit Ethernet PCIe
       vendor: Broadcom Inc. and subsidiaries
       physical id: 0
       bus info: pci@0000:0a:00.0
       logical name: ens9
       version: 00
       serial: 18:7e:b9:0a:c7:d6
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi msix pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 firmware=57762-a1.10 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:19 memory:bcc00000-bcc0ffff memory:bcc10000-bcc1ffff memory:b0c00000-b0c0ffff

Answer 1

如果sudo lshw -C network正确地将ThunderBolt2以太网适配器显示为ens9，那么您的/etc/netplan/*..yaml应该如下所示.

network:
  version: 2
  renderer: networkd
  ethernets:
    ens9:
      dhcp4: true
      optional: true

sudo netplan generate

sudo netplan apply

reboot