LinuxQuestions.org
Did you know LQ has a Linux Hardware Compatibility List?
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices

Reply
 
Search this Thread
Old 07-10-2012, 09:55 AM   #1
yangou
LQ Newbie
 
Registered: Feb 2010
Posts: 13

Rep: Reputation: 2
FC17 killed ethernet


Hi everyone

I have upgraded from FC16 to FC17 and it seems that FC17 killed my
Ethernet card.

ifconfig shows:
lo and p37p1
 
Old 07-10-2012, 11:49 AM   #2
Kustom42
Senior Member
 
Registered: Mar 2012
Distribution: Red Hat
Posts: 1,565

Rep: Reputation: 410Reputation: 410Reputation: 410Reputation: 410Reputation: 410
This is a new feature, instead of using the traditional eth0 eth1 etc.. it now uses BIOS naming to label interfaces.

If you do a tcpdump on p37p1 interface are you getting traffic?

---------- Post added 07-10-12 at 09:50 AM ----------

Here's some red-hat docs to explain the changes to you.

http://docs.redhat.com/docs/en-US/Re...ce_Naming.html
 
Old 07-11-2012, 09:54 AM   #3
yangou
LQ Newbie
 
Registered: Feb 2010
Posts: 13

Original Poster
Rep: Reputation: 2
Hi

Thanks for your reply.

tcpdump -i p37p1 gives me:

tcpdump = WARNING: p37p1 = no IPv4 address assigned.

but if I go to /etc/sysconfig/network-scripts/ there is no p37p1 file to edit.

Should I just create one?

Thanks a lot.
 
Old 07-11-2012, 12:27 PM   #4
Kustom42
Senior Member
 
Registered: Mar 2012
Distribution: Red Hat
Posts: 1,565

Rep: Reputation: 410Reputation: 410Reputation: 410Reputation: 410Reputation: 410
You should be able to just rename or copy your ifcfg-eth0 file to be named ifcfg-p37p1 and restart networking.

Some more info on it:

How It Works

biosdevname uses information from the system's BIOS, specifically the type 9 (System Slot) and type 41 (Onboard Devices Extended Information) fields contained within the SMBIOS. If the system's BIOS does not have SMBIOS version 2.6 or higher and this data, the new naming convention will not be used. Most older hardware does not support this feature because of a lack of BIOSes with the correct SMBIOS version and field information. For BIOS or SMBIOS version information, please contact your hardware vendor. For this feature to take effect, the biosdevname package must also be installed. The biosdevname package is part of the "base" package group in RHEL 6.1. All install options, except for "Minimal Install", include this package. It is not installed on upgrades of RHEL 6.0 to RHEL 6.1.
How To Enable/Disable

To disable this feature on Dell systems that would normally have it on by default, pass "biosdevname=0" on the boot command line, both during and after installation. To enable this feature on other system types that meet the minimum requirements (see "How It Works"), pass "biosdevname=1" on the boot command line, both during and after installation. Unless the system meets the minimum requirements, "biosdevname=1" will be ignored and the system will boot with the traditional network interface name format. If the "biosdevname" install option is specified, it must remain as a boot option for the lifetime of the system.
Notes For Administrators

Many system customization files can include network interface names, and thus will require updates if moving a system from the old convention to the new convention. If you use the new naming convention, you will also need to update network interface names in areas such as custom iptables rules, scripts altering irqbalance, and other similar configuration files. Also, enabling this change for installation will require modification to existing kickstart files that use device names via the "ksdevice" parameter; these kickstart files will need updated to use the network device's MAC address or the network device's new name. Red Hat strongly recommends that you consider this feature to be an install-time choice; enabling or disabling the feature post-install, while technically possible, can be complicated and is not recommended. For those system administrators who wish to do so, on a system that meets the minimum requirements, remove the /etc/udev/rules.d/70-persistent-net.rules file and the HWADDR lines from all /etc/sysconfig/network-scripts/ifcfg-* files. In addition, rename those ifcfg-* files to use this new naming convention. The new names will be in effect after reboot. Remember to update any custom scripts, iptables rules, and service configuration files that might include network interface names.
 
Old 07-12-2012, 05:13 AM   #5
yangou
LQ Newbie
 
Registered: Feb 2010
Posts: 13

Original Poster
Rep: Reputation: 2
Thanks for the info.

There is not an ifcfg-eth0 file inside /etc/sysconfig/network-scripts to rename.

I can only see ifcfg-lo which is the loopback thing.

I also tried creating one and entered the following:

DEVICE=ifcfg-p37p1
BOOTPROTO=dhcp
ONBOOT=yes


I then stopped the network service but it failed to start.

If you have anymore suggestions please let me know.
 
Old 07-12-2012, 10:58 AM   #6
Kustom42
Senior Member
 
Registered: Mar 2012
Distribution: Red Hat
Posts: 1,565

Rep: Reputation: 410Reputation: 410Reputation: 410Reputation: 410Reputation: 410
Ok well the "DEVICE" directive should be just p37p1 so it may be just that easy to get it to work. Also, since the network is failing to start, review the messages file so we can figure out the exact error, or try using the ifup command so the stderr is redirected to your screen so you can see the actual errors.
 
Old 07-13-2012, 09:23 AM   #7
yangou
LQ Newbie
 
Registered: Feb 2010
Posts: 13

Original Poster
Rep: Reputation: 2
Solved

Hi again

I am sorry for wasting your time but it turned out the problem to be a bad ethernet cable.
I have changed the DEVICE name to p37p1. The file is still there.
I am not sure if its being used but Internet is back now

Many thanks for your help.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Terminal Service (RDP) Client on FC17 Ammad Linux - General 1 07-03-2012 11:52 AM
FC17 - doesnt boot hDUQUE Fedora 1 07-01-2012 06:26 PM
[SOLVED] FC17 gnome 3: problem with typing same character repeatedly jot Fedora 4 06-28-2012 11:04 PM
KDE (FC17): what file manager can open folders in separate windows? kaza Linux - Software 3 06-14-2012 06:40 PM
FC17 post-install problems kaza Fedora 4 06-08-2012 08:52 AM


All times are GMT -5. The time now is 03:30 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration