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Old 12th July 2014, 01:08 PM
glennzo Online
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CentOS 7 install - Disappointed

I must say that while this morning's installation of CentOS 7 went off without a hitch, I'm disappointed that I have no Ethernet connection. The system seems to think that there are no network devices although lspci clearly shows my Ethernet adapter.

PHP Code:
lspci grep -i ethernet
00
:07.0 BridgeNVIDIA Corporation MCP61 Ethernet (rev a2
This is on the desktop that I've been happily using for the last several years. I've never had an issue like this.
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Old 12th July 2014, 01:34 PM
leigh123linux
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Re: CentOS 7 install - Disappointed

Did you try setting LAN up during install?



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Old 12th July 2014, 01:41 PM
glennzo Online
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Re: CentOS 7 install - Disappointed

I ignored the network configuration during Anaconda install. I figured there was no need since this adapter "always works".

Once booted into CentOS 7 there was no way to configure networking as the adapter wasn't recognized.

Just for kicks I reran the install CD and tried to configure networking in Anaconda but there was no Ethernet adapter available so I bailed on the thought of re-installing the OS with networking enabled.


There is something about Ethernet on the CentOS 7 wiki. In my case there is no /etc/sysconfig/network-scripts/ifcfg-eth0.
http://wiki.centos.org/FAQ/CentOS7#h...dd5315906fa493
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Old 12th July 2014, 01:49 PM
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Re: CentOS 7 install - Disappointed

Post .........

Quote:
lspci -nnk |grep -A5 Ethernet
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Old 12th July 2014, 02:08 PM
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Re: CentOS 7 install - Disappointed

Code:
[glenn@localhost ~]$ lspci -nnk |grep -A5 Ethernet
00:07.0 Bridge [0680]: NVIDIA Corporation MCP61 Ethernet [10de:03ef] (rev a2)
	Subsystem: Biostar Microtech Int'l Corp Device [1565:2505]
00:08.0 IDE interface [0101]: NVIDIA Corporation MCP61 SATA Controller [10de:03f6] (rev a2)
	Subsystem: Biostar Microtech Int'l Corp Device [1565:5405]
	Kernel driver in use: sata_nv
00:09.0 PCI bridge [0604]: NVIDIA Corporation MCP61 PCI Express bridge [10de:03e8] (rev a2)
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Old 12th July 2014, 02:12 PM
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Re: CentOS 7 install - Disappointed

Hmmm... For clarity:

Your lspci command was executed from the CentOS 7 bootup ?

What does:

Quote:
$ ip link
show after the CentOS 7 boot?


Just for info: my CentOS 7 install was to a virtual machine. I did use the network setup during install to change the host name, but left the adapter setup alone. Everything went well here.
With a successful network install the /etc/sysconfig/network-scripts/ifcfg-etho file does exist.
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Old 12th July 2014, 02:17 PM
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Re: CentOS 7 install - Disappointed

The command was from CentOS, not Fedora.

I'd have to boot back into CentOS to show that command but I can't post anything from there.

I too have CentOS 7 installed in a virtual machine. Ethernet works there.
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Old 12th July 2014, 02:17 PM
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Re: CentOS 7 install - Disappointed

As the CentOS faq says, "somewhat inexplicably" by default, networking is turned off. Another RH decision, as far as I know.

I used the network install, and when it was unable to find a host, I went back and saw that I'd overlooked that it hadn't turned on the network. It's using the Fedora style installer, for better or worse, and I didn't even look at the network till I ran into an issue.

So far, I've only done one install, and don't remember if the network was then enabled or not. I think it was, using NetworkManager which can easily be removed if desired. The CentOS FAQ goes through the steps of eliminating NetworkManager and using the more conventional style of interface naming.
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Old 12th July 2014, 02:20 PM
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Re: CentOS 7 install - Disappointed

@smr54

I've read that, per my link above, but if memory serves me it isn't going to do anything for me. Memory being what it is at my age I'll go have another look at it.
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Old 12th July 2014, 02:22 PM
leigh123linux
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Re: CentOS 7 install - Disappointed

Quote:
Originally Posted by glennzo View Post
Code:
[glenn@localhost ~]$ lspci -nnk |grep -A5 Ethernet
00:07.0 Bridge [0680]: NVIDIA Corporation MCP61 Ethernet [10de:03ef] (rev a2)
    Subsystem: Biostar Microtech Int'l Corp Device [1565:2505]
00:08.0 IDE interface [0101]: NVIDIA Corporation MCP61 SATA Controller [10de:03f6] (rev a2)
    Subsystem: Biostar Microtech Int'l Corp Device [1565:5405]
    Kernel driver in use: sata_nv
00:09.0 PCI bridge [0604]: NVIDIA Corporation MCP61 PCI Express bridge [10de:03e8] (rev a2)

Try

Code:
rpm -Uvh http://mirror.symnds.com/distributions/elrepo/extras/el7/x86_64/RPMS/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
yum install kmod-forcedeth

http://mirror.symnds.com/distributio...7/x86_64/RPMS/
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Old 12th July 2014, 03:19 PM
glennzo Online
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Re: CentOS 7 install - Disappointed

Well, as is usually the case Leigh, you da man! Posting from the CentOS 7 install.

Since I couldn't download the epel release without a network connection I just used wget to retrieve kmod-forcedeth while running Fedora. Then I copied it to my CentOS home folder, rebooted to CentOS and used yum localinstall to install it. Reboot once again and here I am.

Thanks a bunch Leigh. I appreciate your help.

Of course, thanks go out to those involved in this thread too!
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Old 12th July 2014, 07:53 PM
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Re: CentOS 7 install - Disappointed

So this was a case of the chipset getting to old for RHEL support? ( and therefore CentOS )

Maybe this is just one more example of how fast time flies, but is an AM2+ board really that old?
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Old 12th July 2014, 08:03 PM
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Re: CentOS 7 install - Disappointed

Quote:
Originally Posted by Kobuck View Post
So this was a case of the chipset getting to old for RHEL support? ( and therefore CentOS )

Maybe this is just one more example of how fast time flies, but is an AM2+ board really that old?
Anything that is more than a week old these days is old

Now, as soon as we can get some rpmfusion love for Centos 7 I'll be happy.
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Old 13th July 2014, 12:43 AM
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Re: CentOS 7 install - Disappointed

I have to admit that I wasn't too impressed with the install procedure's default settings or flow for that matter. I worked out the LAN needed enabling and it pulled the right host name for the machine from the router. The process felt clunkier than F20 though. For instance after the installation completes you are taken back into anaconda briefly upon restart to accept the terms of usage. This should be done during before you spend time setting the thing up to install.

Also, the default partition format of XFS? not sure about that either for a desktop or workstation. is that more common for server installations? What benefits if any are there over ext4 for instance?
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Old 13th July 2014, 01:53 AM
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Re: CentOS 7 install - Disappointed

Quote:
Originally Posted by arehtykitna View Post
Also, the default partition format of XFS? not sure about that either for a desktop or workstation. is that more common for server installations? What benefits if any are there over ext4 for instance?
You have to remember what CentOS is. ( a faithful use of RHEL source )

Therefore you get a distro engineered for the enterprise ( scalabilty, admin efficiency, flexibility ....)
You'll get a better picture reading RedHat's REHL 7 release announcement.

Redhat also benefits from a CentOS community, particularly in student and academic use, as a source of technical talent and new applications.

P.S. In response to the advantages vs ext: 1- partition size ( and therefore directory content) is not constrained by physical volume size 2- stripeing across physical volumes is part of filesystem
XFS documentation will identify several more
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Last edited by Kobuck; 13th July 2014 at 02:42 AM. Reason: added ext response
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