creating new RHEL6.5 vm using VMM doesn't create a network

Robert P. J. Day rpjday at crashcourse.ca
Wed Dec 25 19:48:23 UTC 2013


  (note: i was tempted to post this to the "virt" list but i suspect
it's something fairly trivial so i'll stick with the basic fedora
list, at least for now.)

  on my new fedora 20 system, i installed all the crucial virt
packages with:

 # yum groupinstall Virtualization

then fired up VMM and selected to add my first VM, CentOS 6.5.
however, early on, it became obvious that i wasn't going to get a
network interface to that VM -- the menu for network interface
selection was totally greyed out, which i thought was odd.

  after the installation of the VM, sure enough, i started up the
centos VM and there was no (virtual) net connection to it. if memory
serves, when i was running centos 6.5 as the *host*, and i created a
fedora VM as a *guest*, the net connection was there automatically.

  i went into the VMM, selected the QEMU hypervisor, and used that to
create a virtual network (device virbr0) as 192.168.100.0/24, and sure
enough, net interface virbr0 is now active on my fedora 20 host. so
as a test, i created a second centos 6.5 guest, and this time i can
see an "eth0" interface, but it has no IP address, and trying to bring
it up has no effect.

  so, short question -- what's the proper prep on my fedora 20 host to
set up KVM/QEMU virtualization before i start creating VMs so that i
have networking? when things were the other way around, and i had a
centos host and was adding a fedora guest, networking just ... worked.
i didn't have to mess with it at all.

rday

-- 

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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