ubuntu 无eth0

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$ lspci
00:00.0 Host bridge: Intel Corporation Device 0104 (rev 09)
00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Device 0126 (rev 09)
00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04)
00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev b5)
00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b5)
00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation Device 1c49 (rev 05)
00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 05)
01:00.0 VGA compatible controller: ATI Technologies Inc Device 6843
07:00.0 Ethernet controller: Broadcom Corporation NetLink BCM57781 Gigabit Ethernet PCIe (rev 10)
08:00.0 Network controller: Intel Corporation WiFi Link 1000 Series
09:00.0 System peripheral: JMicron Technology Corp. SD/MMC Host Controller (rev 30)
09:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller (rev 30)
09:00.3 System peripheral: JMicron Technology Corp. MS Host Controller (rev 30)
09:00.4 System peripheral: JMicron Technology Corp. xD Host Controller (rev 30)

ifconfig 无eth0 无线可以上网，有线却不行，这是没装网卡驱动的问题吗？该怎么装驱动呢？请指点！谢谢！

[枫叶饭团]

搜你网卡的型号，看有没有linux驱动，有的话编译吧。。。搞不好“附加驱动”里有哦

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我的笔记本型号是lenovo y470 联想官方下载驱动的网址是http://support1.lenovo.com.cn/lenovo/wsi/Modules/Driverdownload.aspx?SearchType=1&LogicType=1&MachineId=-8731&IsSeachOne=true&IsBackPage=false&ptype=2&typename=IdeaPad+Y470&from=select
里面没有适用于linux的。请问我该怎么弄呢？还有别的办法吗