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I am running Ubuntu 12.04 based distro (Elementary OS Stable).

My motherboard is an: Asus p5kpl-am se, and the LAN card is: Intel PRO 1000/GT Desktop Adapter.

I am trying to add an external LAN card so that I can connect on LAN and Internet both at the same time. After connecting the LAN card in the PCI slot, I do not find the card in the system.

The output of the ifconfig -a command is:

root@host:/home/user# ifconfig -a

eth0      Link encap:Ethernet  HWaddr 90:e6:ba:b8:7a:be  
          inet addr:192.168.1.10  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::92e6:baff:feb8:7abe/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:38497 errors:0 dropped:0 overruns:0 frame:0
          TX packets:35509 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:33402284 (33.4 MB)  TX bytes:20030855 (20.0 MB)

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:65536  Metric:1
          RX packets:1343 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1343 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:125398 (125.3 KB)  TX bytes:125398 (125.3 KB

Then I ran the lspci command and the output is:

root@host:/home/user# lspci

00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM  Controller (rev 10) 
00:02.0 VGA compatible controller: Intel    Corporation 82G33/G31 Express Integrated Graphics Controller (rev 10)
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High    Definition Audio Controller (rev 01) 
00:1c.0 PCI bridge: Intel    Corporation NM10/ICH7 Family PCI Express Port 1 (rev 01) 
00:1c.1 PCI    bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev    01) 
00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB    UHCI Controller #1 (rev  01) 
00:1d.1 USB controller: Intel Corporation    NM10/ICH7 Family USB UHCI Controller #2 (rev 01) 
00:1d.2 USB    controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #3    (rev 01) 
00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family    USB UHCI Controller #4 (rev 01) 
00:1d.7 USB controller: Intel    Corporation NM10/ICH7 Family USB2 EHCI Controller (rev 01) 
00:1e.0    PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1) 
00:1f.0 ISA    bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface    Bridge (rev 01) 
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7    Family) IDE Controller (rev 01) 
00:1f.2 IDE interface: Intel    Corporation NM10/ICH7 Family SATA Controller [IDE mode] (rev 01)    
00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller    (rev 01) 
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.    RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
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closed as off-topic by gertvdijk, user68186, Jorge Castro, Eric Carvalho, Kevin Bowen Aug 28 '13 at 2:38

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This is not about Ubuntu. Questions about other Linux distributions can be asked on Unix & Linux, those about Windows on Super User, those about Apple products on Ask Different and generic programming questions on Stack Overflow." – gertvdijk, user68186, Jorge Castro, Eric Carvalho, Kevin Bowen
If this question can be reworded to fit the rules in the help center, please edit the question.

    
First of all, make sure your hardware is working properly. Is the card working in another PC? Is the PCI-E interface compatible with your motherboard? Do you see an Option ROM configuration (PXE) for the card in your BIOS? Check the availability of the PCI-E slot in your current configuration. I've seen motherboards disabling the PCI-E 1x slots if a GPU is inserted in the PCI-E 16x slot. What does dmesg | grep e1000e show you? (e1000e is the kernel module name of the Intel driver for this card) Etcetera, etcetera. –  gertvdijk Aug 27 '13 at 16:04
    
Additionally, Elementary OS is considered off-topic here, as it isn't an official Ubuntu derivative. See askubuntu.com/help/on-topic for more information –  gertvdijk Aug 27 '13 at 16:05
    
Please, also add the output of this command: lshw -c network –  Jorge Suárez de Lis Aug 27 '13 at 16:06
    
@gertvdijk you saved my day. The card is fine but the bios was having some thing weird. I reset all to default in Bios and the card is appearing in ifconfig command. Thank you very much for this quick and great answer. –  Waqas Khan Aug 27 '13 at 17:00
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1 Answer 1

As posted in a comment by the OP:

The card is fine but the bios was having some thing weird. I reset all to default in Bios and the card is appearing in ifconfig command.

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