ifconfig command shows only loopback device.

[Matthew Saltzman]

On Fri, 24 Feb 2006, Krishnaprasad wrote:

>
>
> -------- Original
>
> nice..........
>
> in /etc/modprobe.conf add an entry like this...
>
>      alias eth0 e1000

This should work.

>
> otherwise in /etc/rc.local file include the following line .....
>
>      modprobe e1000

This probably won't.  rc.local is the last thing done in the boot 
sequence.  Services that expect an accessible network interface (like 
network) will be started before the interface is accessible.

If you must install a module by hand (because it doesn't get installed 
automatically for some reason), make a script /etc/rc.modules (older RH 
systems including RHEL4) or /etc/sysconfig/modules/<modulename>.modules 
(FC4 and later) to insert it.  These scripts are invoked eary in the boot 
process so modules will be available when services need them.

The OP could also try invoking system-config-network.  Look at the 
Hardware tab to make sure the interfaces were detected, then delete any 
interfaces in the Interfaces tab and recreate them.  This should 
automatically configure /etc/modprobe.conf.

>
> Regards
> Krishna
>
> unix syzadmin wrote:
>
>> Thanks Krishna. It worked.
>> 
>> after running modprobe e1000 ifconfig returns eth0. I confired eth0
>> for IP address and could connect to the network.
>> 
>> However after reboot, ifconfig -a does not show eth0.  How do I
>> configure for e1000 network module to be loaded at every boot?.
>> Please suggest.
>> 
>> Thanks & Regards,
>> -GnanaShekar-
>> 
>> On 2/24/06, Krishnaprasad <k.krishna at hcl.in> wrote:
>> 
>>>       try
>>>          modprobe e1000
>>> 
>>> 
>>> 
>>> unix syzadmin wrote:
>>> 
>>> 
>>>> hi
>>>> lspci
>>>> command shows 2 entries for Intel Corporation 82544EIGigbit Ethernet
>>>> controller.
>>>> 
>>>> ifconfig -a shows only the following
>>>> lo: Link encap:Local Loopback
>>>> sit0:Link encap:IPv6-in-IPv4
>>>> 
>>>> How do I identify netowrk module?  the lsmod command displays the 
>>>> following
>>>> modules
>>>> parport_pc,
>>>> lp,parport,autofs4,i2c_dev,i2c_core,sunrpc,md5,ipv6,dm_mod,button,
>>>> battery,ac,ohci_hcd,floppy,sg,ext3,jbd,aic7xxx,sd_mod,scsi_mod
>>>> 
>>>> Thanks & Regards,
>>>> -GnanaShekar-
>>>> 
>>>> On 2/24/06, Krishnaprasad <k.krishna at hcl.in> wrote:
>>>> 
>>>> 
>>>> 
>>>>> check *lspci* for network controller or type *ifconfig -a*.... check
>>>>> whether the network module is installed or not by putting *lsmod*
>>>>> 
>>>>> unix syzadmin wrote:
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>> Hi,
>>>>>> 
>>>>>> We have installed RHEL AS4 Update 2 on Dell Poweredge 1750. It has 2
>>>>>> network ports.
>>>>>> However the "ifconfig" shows only loopback device.  Please suggest.
>>>>>> 
>>>>>> Thanks & Regards,
>>>>>> -GnanaShekar-
>>>>>> 
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>>>>> --
>>>>> Rgds
>>>>> 
>>>>> KRISHNAPRASAD.K
>>>>> R&D Engineer
>>>>> HCL INFOSYSTEMS LTD
>>>>> PONDICHERRY
>>>>> Mob:09894530948
>>>>> 
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>>> Rgds
>>> 
>>> KRISHNAPRASAD.K
>>> R&D Engineer
>>> HCL INFOSYSTEMS LTD
>>> PONDICHERRY
>>> Mob:09894530948
>>> 
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>
>

-- 
 		Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs