我在一台 Compaq 笔记本电脑上安装了 ubuntu server 20.04。有线连接时，它可以连接到互联网。我一直尝试通过无线方式连接，但没有成功。我在网上阅读了许多关于使用 netplan 的文章，并尝试了他们的说明，但没有成功。命令：“ip a”产生以下输出。
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether 00:1f:16:d1:af:b7 brd ff:ff:ff:ff:ff:ff
3: wls1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 00:24:2c:63:3f:09 brd ff:ff:ff:ff:ff:ff
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:e3:f9:bf:ef brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
valid_lft forever preferred_lft forever
有人能帮我调出“wls1”界面吗？或者这里还有其他问题？
谢谢。eoo。
命令“iwconfig wls1”产生的结果如下：
wls1 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
cat /etc/netplan/*.yaml 的结果：
scr# This file is generated from information provided by
# the datasource. Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
ethernets:
enp1s0:
dhcp4: true
version: 2
wifis:
wls1:
dhcp4: true
optional: true
access-points:
"A-----66a":
password: "7m-----k8y"
@Heynnema 请根据您的建议在下面找到我当前编辑的 *yaml 文件：
# This file is generated from information provided by
# the datasource. Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
version: 2
renderer: networkd
ethernets:
enp1s0:
dhcp4: true
optional: true
wifis:
wls1:
dhcp4: true
access-points:
"AT-----66a":
password: "7m------rk8y"
应用并重新启动后，问题仍然存在。以下是命令“ip a”的输出：
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether 00:1f:16:d1:af:b7 brd ff:ff:ff:ff:ff:ff
inet6 fe80::21f:16ff:fed1:afb7/64 scope link
valid_lft forever preferred_lft forever
3: wls1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 00:24:2c:63:3f:09 brd ff:ff:ff:ff:ff:ff
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:47:8f:bc:4d brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
valid_lft forever preferred_lft forever
5: flannel.1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN group default
link/ether 32:06:6d:56:99:34 brd ff:ff:ff:ff:ff:ff
inet 10.1.11.0/32 scope global flannel.1
valid_lft forever preferred_lft forever
inet6 fe80::3006:6dff:fe56:9934/64 scope link
valid_lft forever preferred_lft forever
@heynnema 请参阅下面给出的命令的输出：
对于'sudo netplan --debug generate'，我有：
** (generate:1099813): DEBUG: 03:18:36.906: Processing input file /etc/netplan/50-cloud-init.yaml..
** (generate:1099813): DEBUG: 03:18:36.906: starting new processing pass
** (generate:1099813): DEBUG: 03:18:36.906: wls1: adding wifi AP 'ATTc58k66a'
** (generate:1099813): DEBUG: 03:18:36.906: We have some netdefs, pass them through a final round of validation
** (generate:1099813): DEBUG: 03:18:36.907: wls1: setting default backend to 1
** (generate:1099813): DEBUG: 03:18:36.907: Configuration is valid
** (generate:1099813): DEBUG: 03:18:36.907: enp1s0: setting default backend to 1
** (generate:1099813): DEBUG: 03:18:36.907: Configuration is valid
** (generate:1099813): DEBUG: 03:18:36.907: Generating output files..
** (generate:1099813): DEBUG: 03:18:36.907: openvswitch: definition enp1s0 is not for us (backend 1)
** (generate:1099813): DEBUG: 03:18:36.907: NetworkManager: definition enp1s0 is not for us (backend 1)
** (generate:1099813): DEBUG: 03:18:36.907: Creating wpa_supplicant config
** (generate:1099813): DEBUG: 03:18:36.907: wls1: Creating wpa_supplicant configuration file run/netplan/wpa-wls1.conf
** (generate:1099813): DEBUG: 03:18:36.907: Creating wpa_supplicant unit /run/systemd/system/netplan-wpa-wls1.service
(generate:1099813): GLib-DEBUG: 03:18:36.907: posix_spawn avoided (workdir specified) (fd close requested)
** (generate:1099813): DEBUG: 03:18:36.926: Creating wpa_supplicant service enablement link /run/systemd/system/systemd-networkd.service.wants/netplan-wpa-wls1.service
** (generate:1099813): DEBUG: 03:18:36.926: openvswitch: definition wls1 is not for us (backend 1)
** (generate:1099813): DEBUG: 03:18:36.927: NetworkManager: definition wls1 is not for us (backend 1)
(generate:1099813): GLib-DEBUG: 03:18:36.927: posix_spawn avoided (fd close requested)
(generate:1099813): GLib-DEBUG: 03:18:36.934: posix_spawn avoided (fd close requested)
对于命令 'sudo lshw -C network' 我有：
*-network
description: Ethernet interface
product: RTL810xE PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: enp1s0
version: 02
serial: 00:1f:16:d1:af:b7
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=full ip=192.168.1.124 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:16 ioport:3000(size=256) memory:d0410000-d0410fff memory:d0400000-d040ffff memory:d3700000-d371ffff
*-network
description: Wireless interface
product: AR242x / AR542x Wireless Network Adapter (PCI-Express)
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:02:00.0
logical name: wls1
version: 01
serial: 00:24:2c:63:3f:09
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath5k driverversion=5.4.0-66-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:17 memory:d2600000-d260ffff
*-network
description: Ethernet interface
physical id: 2
logical name: flannel.1
serial: 32:06:6d:56:99:34
capabilities: ethernet physical
configuration: broadcast=yes driver=vxlan driverversion=0.1 ip=10.1.11.0 link=yes multicast=yes
命令“ grep -i wls1 /var/log/syslog* ”输出如下：
/var/log/syslog.1:Mar 2 21:26:33 eooubuserver systemd[1]: Started WPA supplicant for netplan wls1.
/var/log/syslog.1:Mar 2 21:26:33 eooubuserver systemd-networkd[857]: wls1: Interface name change detected, wls1 has been renamed to wlan0.
/var/log/syslog.1:Mar 2 21:26:33 eooubuserver systemd-networkd[857]: wlan0: Interface name change detected, wlan0 has been renamed to wls1.
/var/log/syslog.1:Mar 2 21:26:33 eooubuserver systemd-networkd[857]: wls1: Link UP
/var/log/syslog.1:Mar 2 21:26:33 eooubuserver systemd-networkd[857]: wls1: IPv6 successfully enabled
/var/log/syslog.1:Mar 2 21:26:33 eooubuserver cloud-init[867]: ci-info: | wls1 | False | . | . | . | 00:24:2c:63:3f:09 |
/var/log/syslog.1:Mar 2 21:26:33 eooubuserver kernel: [ 15.765134] ath5k 0000:02:00.0 wls1: renamed from wlan0
命令“iwlist wls1 freq”显示如下：
wls1 11 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
答案1
为了使无线在服务器安装中工作，您需要安装wpasupplicant和net-tools。
使用有线连接...
sudo apt update
sudo apt install wpasupplicant net-tools
reboot
您的 /etc/netplan/*.yaml 应该看起来完全像这样：
# This file is generated from information provided by
# the datasource. Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
version: 2
renderer: networkd
ethernets:
enp1s0:
dhcp4: true
optional: true
wifis:
wls1:
dhcp4: true
access-points:
"A-----66a":
password: "7m-----k8y"
然后/etc/cloud/cloud.cfg.d/99-disable-network-config.cfg使用以下内容创建：
network: {config: disabled}
然后：
sudo netplan generate
sudo netplan apply
reboot