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akbalaji 04-03-2009 01:03 PM

Network device
 
Hello,

I have installed RHEL 5.1 on a HP Pavilion dv4-1124nr laptop. The installation went thru OK, but the netowrk (both the ethernet and wireless is not enabled) and because of this I am unable to access internet. I would like to know a resolution for this issue.

Please find the output for a few commands which may be of help:

lspci -v|grep Ethernet
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E PCI Express Fast Ethernet controller (rev 02)

ifconfig -a
lo Link encap:Local Loopback
inter addr: 127.0.0.1 Mask: 255.0.0.0
UP Loopback Running MTR:16436 METRIC: 1
RX PACKETS:2579 Errors:0 dropped:0 overruns:0 frame:0
TX Packets:2579 Errors:0 dropped:0 overrims:0 carrier:0
Collisions: 0 txqueuelen:0
RX bytes:2667188 (2.5 MB) TX bytes:2661788 (2.5 MB)

sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 error:0 dropped:0 overruns:0 frame:0
TX packets:0 error:0 dropped:0 overruns:0 frame:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

When I issued the command

network start

the output is

Bringing up loopback interface:
Bringing up interface eth0: 3c501 device eth0 does not seem to be present. delaying initialization.

Can someone help me in resolving this issue for me to access the internet.

Thanks
A K Balaji

farslayer 04-03-2009 01:49 PM

odd.. it's trying to load a 3Com ethernet driver and you listed a realtek..

Could you post the output ofhte following command ?

cat /var/log/dmesg | grep -i eth

akbalaji 04-03-2009 02:35 PM

Farslayer,

The command "cat /var/log/dmesg | grep -i eth" did not return any output.

Thanks
A K Balaji

akbalaji 04-03-2009 02:38 PM

Hello,

Also, I have a wireless card on this laptop and would like that to be enabled too.

Thanks
A K Balaji

akbalaji 04-03-2009 02:42 PM

Hello,

When I issue the command

/etc/init.d/network start

the output is:

Bringing up loopback interface:
Bringing up interface eth0: Device eth0 foes not seem to be present, delaying initialization

Thanks
A K Balaji

farslayer 04-03-2009 03:59 PM

no output, but no error either ? So your system isn't even seeing the ethernet interface at boot... That's not good. It's not disabled in the System BIOS by chance is it ?

akbalaji 04-03-2009 04:03 PM

Farslayer,

How do I check that it is not disbaled in the system BIOS?

Also, when I did lspci -v

The output for Ethernet is:

Ethernet Controller: RealTek Semiconductor Co., Ltd., RTL8101E PCI Express Fast Ethernet controller (rev 2)

Thanks
A K Balaji

farslayer 04-03-2009 04:13 PM

Reboot the system end enter the BIOS.. how you get into the BIOS varies by system but it should tell you on the POST screen for the PC. before it starts loading the OS.

it should say something like F2 to enter SETUP

Yes LSPCI is going to show the hardware in the system but it doesn't tell you if it's disabled or not.

akbalaji 04-03-2009 04:18 PM

Hello,

I installed the RealTek 8101E driver and now I am on the internet.

Can you guide me thru in getting the wireless activated. Where do I start to look.

Thanks
A K Balaji

farslayer 04-03-2009 04:30 PM

Start with the output of lspci if it's internal or a PCI card.. lsusb if it's a usbwireless adapter. or lspcmcia if it's a pcmcia card.

akbalaji 04-03-2009 04:33 PM

Farslayer,

It is an internal wireless device. what is the device name that I should look for in lspci output.

Thanks
A K Balaji

farslayer 04-03-2009 04:38 PM

something in the list referred to as wireless....

example
Code:

05:00.0 Ethernet controller: Atheros Communications, Inc. AR5006EG 802.11 b/g Wireless PCI Express Adapter (rev 01)

akbalaji 04-03-2009 04:50 PM

Farslayer,

I do not see any wireless device listed in lscpi output.

Is it becuase, i am missing the requisite driver for it.

Thanks
A K Balaji

farslayer 04-03-2009 08:50 PM

Don't know.. it could be on another bus.. check lsusb and lspcmcia just in case..


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