Ubuntu Networking :: No Eth0 Found After Installation From Live CD?
Aug 21, 2010
I tried searching but received hundreds of unrelated posts.
When using the Ubuntu 10.04 Live CD I had no problem connecting through my wired network connection. After installation all I can find is the Wireless connection.
I have a Toshiba Satellite A70 laptop. A check of the system shows no eth0 available. What do I need to do to get the wired connection back again?
Also, if the wired worked before installation, why doesn't it work afterwards?
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May 5, 2010
My network name is eth2 it was changed by some reason and now i got these errors... i installed, reinstalled, re re installed, tried to run the asistant but no luck :/
Code:
* Stopping the Firestarter firewall...
eth0: error fetching interface information: Device not found
eth0: error fetching interface information: Device not found
eth0: error fetching interface information: Device not found
[code]....
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Aug 6, 2011
I am working with ubuntu and my eth0 connection was up and working fine untill some days back when all of a sudden it seemed to disapper. I was able to access the net through it before. But now it has vanished and i donno when. i tried ifconfig eth0 up but no use. The result of cat /etc/network/interfaces is as follows
auto lo
iface lo inet loopback
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Jan 20, 2010
i've just installed ubuntu 9.10, and i was browsing the internet fine using the live cd, but once i installed it to disk eth0 wont connect or even show it's all greyed out. lspci reporgts :Ethernet Controller Sundance Technology Inc /IC Plus Corp IP1000, ifconfig finds eth0 no problems i think it mihgt have something to do with root privs
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Jul 13, 2009
On my machine (Desktop PC) I have 2 network card : wireless (rt61 802.11) and a wired card (BCM44). When I install debian 5.
The wired card is detected and logical name eth0 is assigned, while wireless is not assigned I install firmeware* software to configure the card. It is done in some way ( I used mnetwork from mepis, it works fine).
Now the problem: eth0 disapears, and no eth0 inteface found? ifconfig gives just wlan0.
Question: Why there is no eth0, it was before configuration of wlan0 ?
How to active again eth0, or ho to create the logical eth0?
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Jan 16, 2011
When trying to install fedora with a 4gb USB stick, I get after partitioning the hard drive the following message: "The installation programme has failed to mount image #1 because it's not on the harddrive. I'm a dutchmen, so I hope this translation is correct.
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Feb 23, 2011
heres what happenned:
1. had working xp install on 320 gb hard disk with only one partition.
2. backed up and used easeus to shrink and create new partition on same hard drive.
3. tried to install from a working live cd but got medium not found error.
4. looked for fix but didnt find it so i used wubi to install it to the partition i created.
5. worked but annoyingly slow so looked for guide to switch from wubi to full install.
6. followed guide and it installed to a new partition i made with gparted and it formatted that one to ext4 but i still had the wubi install which i didnt want. (btw, non-wubi is much > wubi install).
7. went to xp to uninstall wubi, delete wubi partition, and grow full ubuntu install partition with easeus. easeus requires reboot.
8. restart comp to find an error that said no partition found and something else about grub rescue.
9. try live cds but hard drive not detected and tried win7 and xp but they didnt even get into setup
10. make plan: get bro to format my hardd disk using his compyter so i csn try ubuntu onw more time
i got a bunch of different types of errors but im really close to giving up on it entirely.
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Aug 19, 2009
5.10 Breezy configured as machine controller. Works great eth0 is a fixed IP to communicate with controller comms board. Not easy at all to alter - the comms board is hard coded to listen on eth0 for commands.
I can use eth1 as the default gateway and ping google.com, etc. But when I now attempt to communicate with the controller with netcat, e.g.
Code: echo !HH | nc 192.168.1.6 80
I obviously never get an answer since the request is passed via eth1. Using the -g option with netcat doesn't work either. I had a look at iptables but it doesn't seem to be able to do what I want. How I can still use eth0 as my communication port to the controller whilst eth1 is the default gateway?
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Jul 1, 2010
I have two servers on a vlan at my datacentre/colocation and previously both servers had public IPs on their eth0 interfaces. The servers are HP ProLiant DL360s - one is a G4 and one is a G5 The newer G5 is now the LAMP server and the G4 has been retired and I want to repurpose it as an iSCSI target using openfiler freenas or similar.
My G5 has public/static IPs lashed to the eth0 physical interface and the eth1 is not configured to do anything yet. The G4 will have both interfaces available - perhaps one for ssh access from one of my static public IPs and the other to be a private IP on the local vlan. Here is what I am trying to get my head around...
The G5
eth0 - Public IP - full LAMP services on two or three virtual interfaces
eth1 - Private IP 192.168.0.1
The G4
eth0 - Public IP for ssh
eth1 - Private IP 192.168.0.2
Because my traffic between eth1 on these boxes is via private IPs on the local private vlan it doesn't add to my quota for bandwidth. How do I go about configuring the routing and gateways and other aspects of this so that I can run a private IP space network between the eth1s and still serve the outside world from the eth0s...
I am afraid that if I assign the private IPs to the eth1 interfaces the routing may either not work or interfere with the access to the production internet facing interfaces (eth0s).
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Dec 26, 2014
I'm trying to boot into the Live CD (64bit version) and it dies with an error "nouveau .... 0x8DF6 Init table command not found: 0xA9". Get the same error after I install and try to boot into Debian, it starts booting but errors out later.
Running Intel 4770K on Gigabyte Z97X-UD5H with 8G ram, Nvidia graphics card and several SSDs ...
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Dec 18, 2010
I'm running a dual boot Ubuntu 10.04/Backtrack 4 (Ubuntu 8.10) system. I can get internet in the BT4 side but not in the Lucid side. In Lucid I can ping my router, and the network manager says I'm good to go, but I can't get to any web sites. It all started when I tried to put my laptop on another network by mimicking the settings of a computer I had just unplugged from the network. MAC address and all.
ifconfig eth0:
Code:
eth0 Link encap:Ethernet HWaddr 00:1f:16:ba:4c:8c
inet addr:10.136.9.147 Bcast:10.136.9.159 Mask:255.255.255.240
inet6 addr: fe80::21f:16ff:feba:4c8c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]....
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Apr 22, 2011
im trying to setup eth0 with subdevice eth0.0 and eth0.99 to come up at boot
eth0 is dhcp clint
eth0:0 is static ip
eth0.99 is 802.1q vlan interface
/etc/network/interfaces
Code:
auto lo
[Code]....
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Jul 19, 2011
I booted an OS from a live CD. The OS boots successfully but eth0 fails to start. I checked lspci, it outputs these Ethernet card details:
(Broadcom Netextreme II BCM5716 GBabyte ethernet)
ifconfig -a returns only the loopback interfaces lo and sit0. The output of dmesg | grep -I 'eth' is:
"Netfront : initializing network ethernet driver"
When I run service network restart I get:
"Obtaining IP for lo [FAILED]
WARNING: Deprecated config gile /etc/modprobe.conf , all config files belong into /etc/modprobe.d/
Device eth0 does not seem to be present, delaying initialization [FAILED]"
The output of MII-tool -v is:
No MII interface found.
I was also able to find the kernel module bnx2.ko. I did insmod and lsmod lists it.
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Jun 23, 2009
have a Dell with a 1510 WLAN mini card and tried the solution posted by pschaff in the parent forum. When I got through with the process, I could no longer connect to the internet with a hard-wired ethernet connection. When I open the network connection manager and click on Activate, I get the message:/sbin/ifup: configuration for eth0 not foundUsage: ifap <device name>etho used to be the connection I had to the internet with a hard wired ethernet cable to my modem. I have attached the lspci -m and lspci -n data suggested
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Dec 17, 2010
I reinstalled 10.04.(finally) on a single partition mounted as "/". everything went fine until I rebooted, GRUB began loading and then came back with "no modules name found". I found other postings with the same problem,[URL] but this method doesn't work with the Dmraid.
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Jul 20, 2010
just install opensuse today, but my system can not found eth0, ifconfig ,just have not eh0 infomation,only got lo infomation,
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Jun 13, 2010
I'm usin Ubuntu 9.10 and installed it a couple of months ago. I was trying to figure out how to use Synaptic to fix some dependancy errors I was getting, and set it to remove a certain package. It said it had to remove other packages as well to do this, well that ended up being Gnome and a whole bunch of other stuff. Silly me.So I was alright without having Gnome and went back to writing simple c++ from this book. I wrote a program to output a range of numbers and ran it but had written it wrong, so it would have ran on for hours. So I just killed the power and tried to start the comp again.
This time after the Dell boot screen it would tell me my system battery was low and strike F1 to continue or F2 to enter setup. Hit F1 and Im told that a file wasnt found and then it goes to the Ubuntu loading screen (The logo and some dots underneath) and then a black screen. Nothing else.I figured I needed to reintall and dont have any CDs so tried to make a live CD and this time when I try to boot from USB device get a "Missing Operating System" error.Its set to boot from USB device before harddrive. Need to know what to do to install again/recover old install.
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Dec 26, 2010
i install kernel rpm after i boot that kernel network not working kernel name : kernel-rt-trace-2.6.24.7-132.el5.centos.i686 [URL] error "Bringing up interface eth0: Device eth0 has different MAC address than expected, ignoring."
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Jan 26, 2011
I have installed the Squeeze testing version. i have setup networking for static in the /etc/network/interfaces file. tried to find resolv.conf in the /etc/ since could not find i created this file post trying to start the eth1 i am able to ping my ip, but if try to ping the gateway i get an error saying the ping is not sucessfull. I have 2 network cards, eth0 and eth1. as eth0 does not work i have configured eth1. The dump of the interfaces file is below
[code]...
The same setup works fine in Ubuntu 10.10 setup that i have.
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Jul 30, 2010
I try to generate a server client code. What i try to do is sending video streams from eth0 and eth1 to the other server programs' eth0 and eth1. In order to do that, i decided to use SO_BINDTODEVICE. But the code is not working. Am i misunderstood the usage of SO_BINDTODEVICE.
1-Defining two ports
2-Defining two sockets
3-Assigning host ips on them
[code]....
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Nov 15, 2009
I have 2 network cards eth0 and eth1, for eth0 i set a manual MACADDR in network scripts. Ok so every time i boot, if the cable is plugged in, my eth0 fails to mount or i don't know.. i get this after bood when i type ifoncifg eth0 (eth0: error fetching interface information:Device not found). So i have to unplug the cable when i boot, then plug it in and do a service network restart.
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Sep 27, 2010
I have a hardware device with two ethernet ports, eth0 and eth1 running Centos 5. Basically my goal is to forward packets from eth0->eth1 and eth1->eth0 as well as get a copy of these packets for analysis. If I set IP routing to do the forwarding then I won't get a copy of the packets for analysis.
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Aug 19, 2010
I created a Fedora 12 live-usb. Want to use it to discover hardware compatibility on PC's that are candidate for Linux. I tried to "yum install hwbrowser" while in a live-usb session and I get a message that hwbrowser can't be found. What gives? Is hwbrowser no longer available? On another machine I ran hwbrowser and found that the answer on the video driver from hwbrowser is different than from the command line.
hwbrowser yields >>>> driver: i915
the answer I received from the command line interface >>>>> grep Chipset /var/log/Xorg.0.log driver: i810.
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Feb 24, 2010
I have been able to create the ISO, but I cannot boot due to the data dir not found error.
I have tried using "from=", different CD/DVD readers and different media to no avail.
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Aug 15, 2010
I faced a problem while installing ubuntu 10.04 on mylaptop;i downloaded the ubuntu from ubuntu official site. Problem: message coming that no media device is found for live file system. My Laptop configuration : 2.2 ghz core 2 duo processor, 320gb hdd in this matter and can let me know me how can i install ubuntu 10.04 on my laptop.
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Jan 30, 2010
I am going to reinstall my GRUB bootloader and some one said do the followings:
But when I type "sudo grub" in terminal it gives this error: "sudo: grub: command not found"
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Sep 8, 2010
I've done a good few ubuntu installations for friends and colleagues and now my Dad wants in on the action. His PC is more than capable of running ubuntu 32 bit BUT I've hit a brick wall I've never come across before. I've burnt a CD image of the 10.04 iso from [URL] on my ubuntu box and for some reason, his PC just won't boot from it. If I select the option to manually select the boot source, all I see is the hardware monitor telling me things like CPU temperature. As for the Live USB - nothing whatsoever. Is it possible that I've managed to corrupt the iso file somehow?
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Apr 28, 2011
Live CD: I dowloaded the ISO, burned it to CD, booted from this CD. It starts to load and I can see the purple background with the loading icons. Everything seems normal. But instead of ending up with the login screen, it ends up with a screen that says 'Please remove all bootup media and hit ENTER' or something like this. So I hit enter and then it shuts off my computer. That's it.
Live Stick: So I tried another option and created a stick with 'usb-creator.exe' that is on the CD. Then I start from that stick, but all I end up is a line of 'Syslinux bla bla copyright 20xx-2011'. That's it. Then it does nothing anymore. The cursor is blinking, but no prompt or whatsoever and keyboard input doesn't do anything.
Now something weird: When I insert Live CD and Live Stick at the same time and then boot my computer, then it boots into Ubuntu. Obviously it loads the first parts from CD and then the rest from stick. Because when I'm then in Ubuntu and try to format the stick, it says it can't do so, because there's system files from that stick in use.
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Mar 8, 2010
If I uncheck and recheck "Enable Networking" in the Network Manager Applet 0.7.996 I would expect the wired network to disconnect (which it does) and reconnect (which it does NOT). So I tried sudo ifdown eth0 and got
Quote:
Ignoring unknown interface eth0=eth0.
ifconfig tells me
Quote:
eth0 Link encap:Ethernet HWaddr 00:25:64:e8:18:2c
inet addr:192.168.0.112 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::225:64ff:fee8:182c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]....
so I am at a loss. How do I stop and restart the network interface short of rebooting the machine?
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Mar 12, 2011
On a new ASUS eee PC 1015P, the Windows 7 o/s supplied works fine. Experimenting with a Fedora 14 Linux o/s, currently just booting to a Live User system on a USB Stick, there is no wireless networking. In case it is relevant, the wireless LAN Card details (as reported from lspci) are: Ralink RT3090 802.11n 1T/1R Wireless LAN Card Driver Version 3.1.6.1 Should I be expecting wireless to be working on the USB version, do I need to do a full install to get wireless or is it maybe a drivers problem?
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