From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kashyap Chamarthy Subject: Re: Booting Nested KVM Date: Wed, 6 Apr 2016 15:42:33 +0200 Message-ID: <20160406134233.GA19831@tesla.redhat.com> References: <20160325073340.GB32063@tesla.redhat.com> <56F50D5D.4070906@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Paolo Bonzini , Andrew McMahon Grant , Jintack Lim , kvm@vger.kernel.org To: Jacob Abraham Graff Return-path: Received: from mx1.redhat.com ([209.132.183.28]:43135 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751544AbcDFNmi (ORCPT ); Wed, 6 Apr 2016 09:42:38 -0400 Content-Disposition: inline In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: [Sorre for the late response -- I was away for the last week or so.] On Sat, Mar 26, 2016 at 01:26:20PM -0400, Jacob Abraham Graff wrote: > Thanks for the responses! Unfortunately, I'm still getting problems. > After using virsh net-edit, I attempted to virt-install, and still got > the same error. When I run 'virsh net-start default', I get this > error: > > error: Failed to start network default > error: failed to add iptables rule to allow DHCP requests from 'virbr0' I don't see any such errors as test on latest stable release libvirt-1.3.2-3.fc23.x86_64. Given that you say you've looked up few things, I'd assume you've tried (a) ensuring `firewalld` is running; (b) have 'iptables' package installed. > None of the solutions I have found on Google have a fix for this. Any > ideas? [...] > > I think his problem is that he has 192.168.122.0/24 configured on > > both host and guest for the default libvirt network. Jacob, to fix > > this you need to do "virsh net-edit default" (as root) and change > > the occurrences of 122 to another number such as 123. If that's really the case, then upstream libvirt has fixed[1] the default network conflicts. I remember testing the very same case[2] of avoiding default network conflicts for nested virtualization -- using the said fix[1] avoids it. It is available in version libvirt-1.2.8 or above. [1] http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=5f719596 -- network: try to eliminate default network conflict during package install [2] http://kashyapc.com/2014/09/16/libvirt-default-network-conflicts-not-anymore/ -- /kashyap