最近，我在装有 Windows 8 的 Acer Travelmate P253 上安装了 Ubuntu 12.04.1LTS。但我无法连接到任何形式的互联网。我读了很多相同的问题，并执行了所有回复，但仍然不起作用。我也无法安装另一个 Windows。我是计算机门外汉，所以我向你们寻求帮助。我的 ifconfig 是：
eth0
link encap:Ethernet HWaddr 20:1a:06:ba:2e:30
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:16
lo
Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:488 errors:0 dropped:0 overruns:0 frame:0
TX packets:488 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0
RX bytes:39632 (39.6 KB) TX bytes:39632 (39.6 KB)
rfkill list all
0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
Lshw -c network
Warning: you should run this program as super-user.
*-network
Description: Ethernet interface
Product: netlink BCM57785 Gigabit Ethernet PCIe
Vendor: Broadcom Corporation
Physical id: 0
Bus info: pci@0000:02:00.0
Logical name: eth0
Version: 10
Serial: 20:1a:06:ba:2e:30
Capicity: 1Gbit/s
Width: 64 bits
Clock: 33MHz
Capabilities: bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bit 1000bt-fd autonegotiation
Configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.121 firmware=sb latency=0 multicast=yes port=twisted pair
Resources: irq:16 memory:90430000-9043ffff memory:90440000-9044ffff memory:90450000-904507ff
*-network UNCLAIMED
Description: Network controller
Product: Atheros communications Inc.
Vendor: Atheros Communications Inc.
Physical id: 0
Bus info: pci@0000:03:00.0
Version: 01
Width: 64 bits
Clock: 33MHz
Capabilities: bus_master cap_list
Configuration: latency=0
Resources: memory:90500000-9057ffff memory:7ec00000-7ec0ffff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.
我没有使用自己的路由器
启动模式：[传统 BIOS] [UEFI] 不支持 Ubuntu..
网络启动：[已启用]
希望我给您提供了正确且足够的信息来帮助我。我期待您的回复。
此致，