我一直在基本映像上安装无线网络支持,但遇到了一些非常奇怪的事情。仔细查看 ifconfig 和 iwconfig 的输出。我的路由器有一个有效的 dhcp 分配的 IP,可 ping 通,但无线适配器未关联!昨天,当我执行完全相同的步骤时,它工作正常,没有这种奇怪的情况,但今天它做了一些不同的事情。 wpa_supplicant 发生了一些奇怪的事情。我正在记录我采取的每一步,这样万一我被公共汽车碾过,它就可以重现,但我昨晚可能错过了记录一个步骤;)
这就是我安装 Realterk 无线 USB 支持的方法:
apt-get install firmware-realtek iw crda wireless-regdb wireless-tools wpasupplicant
这是插入适配器后 lsub 的输出:
Bus 001 Device 012: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
和 dmseg:
[ 1096.600195] usb 1-1.3: new high-speed USB device number 13 using dwc_otg
[ 1096.701786] usb 1-1.3: New USB device found, idVendor=0bda, idProduct=8178
[ 1096.704348] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1096.706830] usb 1-1.3: Product: 802.11n WLAN Adapter
[ 1096.709223] usb 1-1.3: Manufacturer: Realtek
[ 1096.711575] usb 1-1.3: SerialNumber: 00e04c000001
和 ifconfig:
wlan0 Link encap:Ethernet HWaddr 00:13:ef:11:00:bf
inet addr:192.168.10.110 Bcast:192.168.10.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:57 overruns:0 frame:0
TX packets:0 errors:0 dropped:1 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1598 (1.5 KiB) TX bytes:2224 (2.1 KiB)
和 iwconfig:
wlan0 unassociated Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency=2.417 GHz Access Point: Not-Associated
Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
接口:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant_wlan0.conf
metric 10
allow-hotplug wlan1
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant_wlan1.conf
metric 20
wpa_supplicant_wlan0:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
country=CA
update_config=1
network={
ssid="myssid"
psk="mypassword"
key_mgmt=WPA-PSK
}