ubuntu宽带连接求教

我去，7。02?你该升级了吧。。。
你是pppoe？把日志贴上来

ubuntu 还有 02 ??????

贴日志，dmesg, /var/log/messages

7.02！？难道是10几年前的老机器。。。

猜测pppoe没拨成功!

@maoyipeng 是四年前装的系统，因为当时有个程序要用到，后面因为用的少就没有更新。

@momou 没有那么老。。

@maoyipeng
@JackyHua
@jsz 这是日志。麻烦各位前辈帮忙看看，感激不尽。
[ 0.227924] system 00:05: ioport range 0x164e-0x164f has been reserved
[ 0.227926] system 00:05: ioport range 0xfe00-0xfe00 has been reserved
[ 0.227931] system 00:06: ioport range 0x6a0-0x6af has been reserved
[ 0.227934] system 00:06: ioport range 0x6b0-0x6ff has been reserved
[ 0.227940] system 00:0a: iomem range 0xfed1c000-0xfed1ffff has been reserved
[ 0.227942] system 00:0a: iomem range 0xfed10000-0xfed13fff has been reserved
[ 0.227945] system 00:0a: iomem range 0xfed18000-0xfed18fff has been reserved
[ 0.227947] system 00:0a: iomem range 0xfed19000-0xfed19fff has been reserved
[ 0.227950] system 00:0a: iomem range 0xe0000000-0xefffffff has been reserved
[ 0.227953] system 00:0a: iomem range 0xfed20000-0xfed3ffff has been reserved
[ 0.227955] system 00:0a: iomem range 0xfed40000-0xfed44fff has been reserved
[ 0.227958] system 00:0a: iomem range 0xfed45000-0xfed8ffff has been reserved
[ 0.262599] AppArmor: AppArmor Filesystem Enabled
[ 0.262666] pci 0000:00:01.0: PCI bridge, secondary bus 0000:01
[ 0.262669] pci 0000:00:01.0: IO window: 0x2000-0x2fff
[ 0.262673] pci 0000:00:01.0: MEM window: 0xcc000000-0xcdefffff
[ 0.262676] pci 0000:00:01.0: PREFETCH window: 0x000000ce000000-0x000000dfffffff
[ 0.262681] pci 0000:00:1c.0: PCI bridge, secondary bus 0000:02
[ 0.262685] pci 0000:00:1c.0: IO window: 0x3000-0x3fff
[ 0.262691] pci 0000:00:1c.0: MEM window: 0xf6000000-0xf7ffffff
[ 0.262696] pci 0000:00:1c.0: PREFETCH window: 0x000000f0000000-0x000000f1ffffff
[ 0.262703] pci 0000:00:1c.2: PCI bridge, secondary bus 0000:04
[ 0.262706] pci 0000:00:1c.2: IO window: 0x4000-0x4fff
[ 0.262712] pci 0000:00:1c.2: MEM window: 0xf8000000-0xf9ffffff
[ 0.262717] pci 0000:00:1c.2: PREFETCH window: 0x000000f2000000-0x000000f3ffffff
[ 0.262725] pci 0000:00:1c.3: PCI bridge, secondary bus 0000:06
[ 0.262728] pci 0000:00:1c.3: IO window: 0x5000-0x5fff
[ 0.262734] pci 0000:00:1c.3: MEM window: 0xfa000000-0xfbffffff
[ 0.262739] pci 0000:00:1c.3: PREFETCH window: 0x000000f4000000-0x000000f5ffffff
[ 0.262747] pci 0000:00:1e.0: PCI bridge, secondary bus 0000:08
[ 0.262748] pci 0000:00:1e.0: IO window: disabled
[ 0.262754] pci 0000:00:1e.0: MEM window: disabled
[ 0.262759] pci 0000:00:1e.0: PREFETCH window: disabled
[ 0.262769] alloc irq_desc for 16 on node -1
[ 0.262771] alloc kstat_irqs on node -1
[ 0.262776] pci 0000:00:01.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 0.262780] pci 0000:00:01.0: setting latency timer to 64
[ 0.262787] alloc irq_desc for 17 on node -1
[ 0.262789] alloc kstat_irqs on node -1
[ 0.262792] pci 0000:00:1c.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 0.262797] pci 0000:00:1c.0: setting latency timer to 64
[ 0.262805] alloc irq_desc for 18 on node -1
[ 0.262807] alloc kstat_irqs on node -1
[ 0.262810] pci 0000:00:1c.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[ 0.262815] pci 0000:00:1c.2: setting latency timer to 64
[ 0.262823] alloc irq_desc for 19 on node -1
[ 0.262824] alloc kstat_irqs on node -1
[ 0.262827] pci 0000:00:1c.3: PCI INT D -> GSI 19 (level, low) -> IRQ 19
[ 0.262832] pci 0000:00:1c.3: setting latency timer to 64
[ 0.262840] pci 0000:00:1e.0: setting latency timer to 64
[ 0.262845] pci_bus 0000:00: resource 0 io: [0x00-0xffff]
[ 0.262847] pci_bus 0000:00: resource 1 mem: [0x000000-0xffffffff]
[ 0.262849] pci_bus 0000:01: resource 0 io: [0x2000-0x2fff]
[ 0.262852] pci_bus 0000:01: resource 1 mem: [0xcc000000-0xcdefffff]
[ 0.262854] pci_bus 0000:01: resource 2 pref mem [0xce000000-0xdfffffff]
[ 0.262857] pci_bus 0000:02: resource 0 io: [0x3000-0x3fff]
[ 0.262859] pci_bus 0000:02: resource 1 mem: [0xf6000000-0xf7ffffff]
[ 0.262861] pci_bus 0000:02: resource 2 pref mem [0xf0000000-0xf1ffffff]
[ 0.262864] pci_bus 0000:04: resource 0 io: [0x4000-0x4fff]
[ 0.262866] pci_bus 0000:04: resource 1 mem: [0xf8000000-0xf9ffffff]
[ 0.262868] pci_bus 0000:04: resource 2 pref mem [0xf2000000-0xf3ffffff]
[ 0.262871] pci_bus 0000:06: resource 0 io: [0x5000-0x5fff]
[ 0.262873] pci_bus 0000:06: resource 1 mem: [0xfa000000-0xfbffffff]
[ 0.262875] pci_bus 0000:06: resource 2 pref mem [0xf4000000-0xf5ffffff]
[ 0.262878] pci_bus 0000:08: resource 3 io: [0x00-0xffff]
[ 0.262880] pci_bus 0000:08: resource 4 mem: [0x000000-0xffffffff]
[ 0.262911] NET: Registered protocol family 2
[ 0.262992] IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.263273] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.263764] TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
[ 0.263969] TCP: Hash tables configured (established 131072 bind 65536)
[ 0.263971] TCP reno registered
[ 0.264031] NET: Registered protocol family 1
[ 0.264083] Trying to unpack rootfs image as initramfs...
[ 0.435461] Freeing initrd memory: 7467k freed
[ 0.439657] Simple Boot Flag at 0x37 set to 0x1
[ 0.439823] cpufreq-nforce2: No nForce2 chipset.
[ 0.439848] Scanning for low memory corruption every 60 seconds
[ 0.439949] audit: initializing netlink socket (disabled)
[ 0.439965] type=2000 audit(1374006731.435:1): initialized
[ 0.447878] highmem bounce pool size: 64 pages
[ 0.447883] HugeTLB registered 4 MB page size, pre-allocated 0 pages
[ 0.449193] VFS: Disk quotas dquot_6.5.2
[ 0.449244] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.449727] fuse init (API version 7.12)
[ 0.449797] msgmni has been set to 1705
[ 0.449984] alg: No test for stdrng (krng)
[ 0.449993] io scheduler noop registered
[ 0.449995] io scheduler anticipatory registered
[ 0.449997] io scheduler deadline registered
[ 0.450032] io scheduler cfq registered (default)
[ 0.450196] pci 0000:01:00.0: Boot video device
[ 0.450311] alloc irq_desc for 24 on node -1
[ 0.450313] alloc kstat_irqs on node -1
[ 0.450322] pcieport-driver 0000:00:01.0: irq 24 for MSI/MSI-X
[ 0.450328] pcieport-driver 0000:00:01.0: setting latency timer to 64
[ 0.450453] alloc irq_desc for 25 on node -1
[ 0.450455] alloc kstat_irqs on node -1
[ 0.450463] pcieport-driver 0000:00:1c.0: irq 25 for MSI/MSI-X
[ 0.450474] pcieport-driver 0000:00:1c.0: setting latency timer to 64
[ 0.450626] alloc irq_desc for 26 on node -1
[ 0.450628] alloc kstat_irqs on node -1
[ 0.450636] pcieport-driver 0000:00:1c.2: irq 26 for MSI/MSI-X
[ 0.450647] pcieport-driver 0000:00:1c.2: setting latency timer to 64
[ 0.450795] alloc irq_desc for 27 on node -1
[ 0.450797] alloc kstat_irqs on node -1
[ 0.450805] pcieport-driver 0000:00:1c.3: irq 27 for MSI/MSI-X
[ 0.450816] pcieport-driver 0000:00:1c.3: setting latency timer to 64
[ 0.450915] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 0.451052] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[ 0.452293] ACPI: AC Adapter [ADP1] (on-line)
[ 0.452345] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[ 0.452349] ACPI: Power Button [PWRF]
[ 0.452407] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input1
[ 0.452444] ACPI: Lid Switch [LID0]
[ 0.452481] input: Power Button as /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input2
[ 0.452487] ACPI: Power Button [PWRB]
[ 0.452524] input: Sleep Button as /devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input3
[ 0.452527] ACPI: Sleep Button [SLPB]
[ 0.452631] fan PNP0C0B:00: registered as cooling_device0
[ 0.452636] ACPI: Fan [FAN0] (off)
[ 0.452712] fan PNP0C0B:01: registered as cooling_device1
[ 0.452717] ACPI: Fan [FAN1] (off)
[ 0.453427] ACPI: SSDT 7fd1aca0 00223 (v01 PmRef Cpu0Ist 00003000 INTL 20050624)
[ 0.454100] ACPI: SSDT 7fd19020 00C78 (v01 PmRef Cpu0Cst 00003001 INTL 20050624)
[ 0.456153] Monitor-Mwait will be used to enter C-1 state
[ 0.456175] Monitor-Mwait will be used to enter C-2 state
[ 0.456182] Marking TSC unstable due to TSC halts in idle
[ 0.456204] Switched to high resolution mode on CPU 0
[ 0.456214] ACPI: CPU0 (power states: C1[C1] C2[C2])
[ 0.456230] processor LNXCPU:00: registered as cooling_device2
[ 0.456233] ACPI: Processor [CPU0] (supports 8 throttling states)
[ 0.456642] ACPI: SSDT 7fd1aa20 001CF (v01 PmRef ApIst 00003000 INTL 20050624)
[ 0.456998] ACPI: SSDT 7fd1af20 0008D (v01 PmRef ApCst 00003000 INTL 20050624)
[ 0.457421] Switched to high resolution mode on CPU 1
[ 0.457951] ACPI: CPU1 (power states: C1[C1] C2[C2])
[ 0.457968] processor LNXCPU:01: registered as cooling_device3
[ 0.457971] ACPI: Processor [CPU1] (supports 8 throttling states)
[ 0.462185] thermal LNXTHERM:01: registered as thermal_zone0
[ 0.462192] ACPI: Thermal Zone [TZ00] (64 C)
[ 0.463333] thermal LNXTHERM:02: registered as thermal_zone1
[ 0.463342] ACPI: Thermal Zone [TZ01] (64 C)
[ 0.463392] isapnp: Scanning for PnP cards...
[ 0.522274] ACPI: Battery Slot [BAT1] (battery present)
[ 0.819142] isapnp: No Plug & Play device found
[ 0.820196] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.821353] brd: module loaded
[ 0.821743] loop: module loaded
[ 0.821801] input: Macintosh mouse button emulation as /devices/virtual/input/input4
[ 0.821864] ahci 0000:00:1f.2: version 3.0
[ 0.821877] ahci 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[ 0.821908] alloc irq_desc for 28 on node -1
[ 0.821909] alloc kstat_irqs on node -1

@hustlike 你找有ppp字样的。。

你的宽带要拨号？还是接路由？

在学校无线没问题只说明无线网卡工作正常。
在家连宽带你得知道你家用的是什么接入方式啊。

首先家里连宽带使用的应该是有线以太网卡，需确保该网卡工作正常：
1）确定网线没问题，连接后网卡灯亮。
2）需要有该网卡驱动
`ifconfig -a` 应该能看到ethX，没有就说明有问题了，需编译驱动。
用`lspci -v` 去找你网卡需要用的驱动
3）确认该网卡起来了
`ifconfig ethX up`
`ethtool ethX` 检测网卡状态

然后才是网络配置，根据不同接入方式而具体设置。
1）是ADSL的话，去搜pppoe的配置。
2）有个IP就能接入的话，是DHCP还是手动指定？去问网管。
……