Probably you need to modify /etc/one/vmm_exec/vmm_exec_kvm.conf
and add EMULATOR = /usr/libexec/qemu-kvm Cheers Ruben On Tue, Mar 25, 2014 at 1:51 PM, Marco Fanti <marco.fa...@studenti.polito.it > wrote: > Thank you for the answers, > this was the log file of the vm that don't start because of the missing > kvm module (so it does not fall back to qemu --no-kvm when the kvm module > is not present on the system. > > Mon Mar 24 15:11:02 2014 [DiM][I]: New VM state is ACTIVE. > Mon Mar 24 15:11:02 2014 [LCM][I]: New VM state is PROLOG. > Mon Mar 24 15:11:02 2014 [VM][I]: Virtual Machine has no context > Mon Mar 24 15:11:03 2014 [LCM][I]: New VM state is BOOT > Mon Mar 24 15:11:03 2014 [VMM][I]: Generating deployment file: > /var/lib/one/vms/2/deployment.0 > Mon Mar 24 15:11:03 2014 [VMM][I]: ExitCode: 0 > Mon Mar 24 15:11:03 2014 [VMM][I]: Successfully execute network driver > operation: pre. > Mon Mar 24 15:11:03 2014 [VMM][I]: Command execution fail: cat << EOT | > /var/tmp/one/vmm/kvm/deploy '/var/lib/one//datastores/0/2/deployment.0' > 'on-compute1' 2 on-compute1 > Mon Mar 24 15:11:03 2014 [VMM][I]: error: Failed to create domain from > /var/lib/one//datastores/0/2/deployment.0 > Mon Mar 24 15:11:03 2014 [VMM][I]: error: internal error Child process > (LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin > HOME=/ /usr/bin/kvm -no-user-config -device ? -device pci-assign,? -device > virtio-blk-pci,? -device virtio-net-pci,? -device scsi-disk,?) unexpected > exit status 1: Could not access KVM kernel module: No such file or directory > Mon Mar 24 15:11:03 2014 [VMM][I]: failed to initialize KVM: No such file > or directory > Mon Mar 24 15:11:03 2014 [VMM][I]: No accelerator found! > Mon Mar 24 15:11:03 2014 [VMM][I]: > Mon Mar 24 15:11:03 2014 [VMM][E]: Could not create domain from > /var/lib/one//datastores/0/2/deployment.0 > Mon Mar 24 15:11:03 2014 [VMM][I]: ExitCode: 255 > > > > 2014-03-25 13:14 GMT+01:00 Javier Fontan <jfon...@opennebula.org>: > > OpenNebula can be configured to use qemu emulation instead of kvm >> virtualization but not per VM but in the driver definition. The type >> of the VM driver can be changed from "kvm" to "qemu" in oned.conf. For >> example: >> >> --8<------ >> VM_MAD = [ >> name = "kvm", >> executable = "one_vmm_ssh", >> arguments = "-t 15 -r 0 kvm", >> default = "vmm_ssh/vmm_ssh_kvm.conf", >> type = "qemu" ] >> ------>8-- >> >> This is used in the tryout images as they are already virtualized. It >> will be also useful for the infrastructure Marco Fanti wants to >> create. >> >> Still this is not useful to have mixed virtualized and emulated >> machines in the same host. Maybe this parameter can be changed to a VM >> setting instead of a driver setting. >> > > Thank you Javier, this solution is actually documented in the oned.conf > comments, I'm sorry that i didn't noticed it before. > > >> >> On Tue, Mar 25, 2014 at 10:28 AM, Carlo Daffara >> <carlo.daff...@cloudweavers.eu> wrote: >> > It is nevertheless an interesting feature. For example, when emulating >> legacy OSes like DOS or Windows 3.11 you >> > have to disable KVM anyway, or the OS does not boot. (And yes, we *do* >> have sometimes to bring legacy operating systems >> > into OpenNebula :-)) >> > Maybe we can add it as a feature? It should be mainly a matter of >> passing the "-no-kvm" switch.... >> > cheers, >> > Carlo Daffara >> > >> > ----- Messaggio originale ----- >> > Da: "Jon" <three1...@gmail.com> >> > A: "Marco Fanti" <marco.fa...@studenti.polito.it> >> > Cc: "Users OpenNebula" <users@lists.opennebula.org> >> > Inviato: Martedì, 25 marzo 2014 10:20:50 >> > Oggetto: Re: [one-users] Configure hosts to use qemu without kvm >> hardware acceleration >> > >> > >> > >> > Shouldn't qemu fallback to "paravitualization" when hardware >> acceleration isn't available? >> > >> > http://blog.vmsplice.net/2011/03/should-i-use-qemu-or-kvm.html?m=1 >> > >> > I was confident that qemu could detect on the fly if hardware >> virtualization was available and would enable it or not as appropriate. >> until your post... >> > >> > Are you getting an error with OpenNebula? >> > >> > Thanks, >> > Jon A >> > On Mar 25, 2014 1:41 AM, "Marco Fanti" < marco.fa...@studenti.polito.it> >> > wrote: >> > >> > >> > >> > Hi all, >> > I'm building a testing environment and I need to use some kvm virtual >> machines as host nodes. >> > Since I cannot enable the hardware acceleration inside a virtual >> machine*, I'd like to know how to configure a host node like the >> configuration that there is in the kvm sandbox (that actually use qemu-kvm >> with the parameter -no-kvm). >> > As frontend node and host nodes I'm using Debian 7, and opennebula is >> installed from the .deb packages for Debian 7 downloaded from the >> opennebula website. >> > >> > Thank you all, >> > Marco Fanti >> > >> > *I know it is possible to enable nested kvm inside kvm, the guide is >> http://palexster.wordpress.com/2013/03/06/enable-nested-virtualization-on-kvm/, >> > BUT this features has a lot of bug, especially in the "old" versions of >> kvm like the one in Debian Stable, so I'd like a more stable solution, like >> to use qemu without kvm as in the kvm sandbox >> > >> > _______________________________________________ >> > Users mailing list >> > Users@lists.opennebula.org >> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org >> > >> > >> > _______________________________________________ >> > Users mailing list >> > Users@lists.opennebula.org >> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org >> > _______________________________________________ >> > Users mailing list >> > Users@lists.opennebula.org >> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org >> >> >> >> -- >> Javier Fontán Muiños >> Developer >> OpenNebula - The Open Source Toolkit for Data Center Virtualization >> www.OpenNebula.org | @OpenNebula | github.com/jfontan >> > > > _______________________________________________ > Users mailing list > Users@lists.opennebula.org > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > > -- -- Ruben S. Montero, PhD Project co-Lead and Chief Architect OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org | rsmont...@opennebula.org | @OpenNebula
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