Fedora+KVM, any docs showing networking ?

[Naoki]

I'm  a tad stuck here, looking for help..  Do any Fedora users out there
have pointers to Fedora specific docs (examples?) on KVM and
networking ? I'm F8 but will take F7 docs.

My situation..

I have a KVM'ed OS that cannot communicate with the outside world,  I
understand this is because unlike Xen, KVM does not automatically
configure 'bridge networking'. 

None of the Fedora docs (including beats) show any references to setting
up KVM networking and simple list "use  qemu-kvm".  

Upon running 'qemu-kvm' it complains with :

open /dev/kvm: No such file or directory
Could not initialize KVM, will disable KVM support

And when I attempt to load my network device as a bridge device I get :

Bringing up interface eth0:  Bridge support not available in this kernel

So I'm referring to the qemu docs for help but so far I'm finding Ubuntu
specific docs and I'd rather like to get this working sooner rather than
later.

[Bill Davidsen]

Naoki wrote:
>  I'm  a tad stuck here, looking for help..  Do any Fedora users
> out there 
>  have pointers to Fedora specific docs (examples?) on KVM and networking 
>  ? I'm F8 but will take F7 docs.
>  
>  My situation..
>  
>  I have a KVM'ed OS that cannot communicate with the outside world,  I 
>  understand this is because unlike Xen, KVM does not automatically 
>  configure 'bridge networking'.
>  
>  None of the Fedora docs (including beats) show any references to setting 
>  up KVM networking and simple list "use  qemu-kvm". 
>  
>  Upon running 'qemu-kvm' it complains with :
>  
>  open /dev/kvm: No such file or directory
>  Could not initialize KVM, will disable KVM support 
That's easy, after you
   modprobe -v kvm-intel
you will have /dev/kvm. You can then give yourself rwx permissions by 
group, or whatever. I am in root group, so I just
   chmod g+rwx /dev/kvm
to get it done. Some of the docs claim selinux has to be disabled, I'm 
not willing to do that (yet) as all the non-networked stuff works just 
fine as is. I build software under BSD, run Windows applications, etc. 
But the network stuff doesn't want to work, even when I create a bridge, 
etc.
>  
>  And when I attempt to load my network device as a bridge device I get :
>  
>  Bringing up interface eth0:  Bridge support not available in this kernel
>  
>  So I'm referring to the qemu docs for help but so far I'm finding Ubuntu 
>  specific docs and I'd rather like to get this working sooner rather than 
>  later.
>   
There is bridge module and utility stuff to download, the machine on 
which I did it is offline (and FC6) at the moment, so I can't give details.

I never did get kvm working for network access, and I'd rather use it 
than xen if I could, so if you get it done a one screen howto would be 
useful. There's some stuff I pulled off virtual.org (from memory)


-- 
Bill Davidsen <davidsen(a)tmr.com&gt;
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot

[Naoki]

Answering my own question now.. Of course Fedora being the sensible and
advanced OS it is has the libvirt.org framework and virsh for managing
the various hypervisors and virtualization methods.  So I'm looking at
how to setup the bridging under all that but still am running into the
bridging support error as described below..


On Mon, 2007-11-05 at 12:55 +0900, Naoki wrote:

>  I'm  a tad stuck here, looking for help..  Do any Fedora users
> out
>  there have pointers to Fedora specific docs (examples?) on KVM and
>  networking ? I'm F8 but will take F7 docs.
>  
>  My situation..
>  
>  I have a KVM'ed OS that cannot communicate with the outside world,  I
>  understand this is because unlike Xen, KVM does not automatically
>  configure 'bridge networking'. 
>  
>  None of the Fedora docs (including beats) show any references to
>  setting up KVM networking and simple list "use  qemu-kvm".  
>  
>  Upon running 'qemu-kvm' it complains with :
>  
>  open /dev/kvm: No such file or directory
>  Could not initialize KVM, will disable KVM support
>  
>  And when I attempt to load my network device as a bridge device I
>  get :
>  
>  Bringing up interface eth0:  Bridge support not available in this
>  kernel
>  
>  So I'm referring to the qemu docs for help but so far I'm finding
>  Ubuntu specific docs and I'd rather like to get this working sooner
>  rather than later. 
>  
>  -- 
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