[PLUG] New Computer - No Ethernet

Russell Senior russell at personaltelco.net
Sat Dec 12 02:43:37 UTC 2020


Can you install another NIC that is supported?

On Fri, Dec 11, 2020 at 6:39 PM Michael Barnes <barnmichael at gmail.com> wrote:
>
> On Fri, Dec 11, 2020 at 5:37 PM TomasK <tomas.kuchta.lists at gmail.com> wrote:
>
> > CentOS 7 is pretty old (predates it by years) for your hardware - you
> > need kernel 5.3 or newer for this to work properly.
> >
> > I am not sure if you can get this new kernel from CentOS 7
> > repositories. If you are used to CentOS - try CentOS stream or Fedora
> > with newer kernel.
> >
> > Hope that helps,
> > Tomas
> >
> > On Fri, 2020-12-11 at 16:53 -0800, Michael Barnes wrote:
> > > Just got a new computer a friend built. It is using a Biostar B550GTA
> > > Motherboard. I installed CentOS 7 in it, which went well.
> > >
> > > Problem is, I cannot get a network connection. I plug in the Ethernet
> > > cable
> > > and get a good light on the switch and a blinking yellow light on the
> > > jack
> > > in the computer. Cable verified good.
> > >
> > > If I do an 'ip a' it only shows io, no eth0. If I run the network
> > > utility
> > > nmtui, it does not show any Ethernet devices.
> > >
> > > I haven't worked on machines at this level in a few years, so I have
> > > likely
> > > forgotten all the obvious stuff. I went into the Motherboard setup
> > > and find
> > > nothing regarding enable/disable onboard Ethernet.
> > >
> > > Any ideas?
> > >
> > > Thanks,
> > > Michael
> > >
> >
>
> First, the computer I had was too old. Now, it is too new. I have to use
> CentOS7 for the application I am running, which uses qt4. CentOS8 only has
> qt5, which is not backwards compatible. And, so far, everything I have seen
> says because CentOS Stream is based on pre-release RHEL, it is not ready
> for production use. Looks like I'm getting caught between a rock and a hard
> place.
>
> I wanted to see what it said about the nic, so I ran lspci and got "command
> not found". I guess I need to install pciutils, which is on the
> installation DVD, but I don't know how to install it from that. Only have
> the command line at this time.
>
> Michael
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