Hello Valentin,
Apparently, when creating a VM as a regular user, the only group that is
taken into account is the one that appears as 'gid' (oneadmin in this
case). So what I did to solve the problem was to change the owner of
/dev/kvm to root.oneadmin.
Best,
Javi
On 25/07/12 11:19, Valentin Bud wrote:
Hello,
I have recently setup OpenNebula 3.6 on 2 Debian Squeeze boxes. Both
machines function as hosts, one of them as frontend.
I have followed the OpenNebula documentation [1] to setup the KVM
driver on the hosts.
### Host A
# kvm --version
QEMU PC emulator version 0.12.5 (qemu-kvm-0.12.5), Copyright (c)
2003-2008 Fabrice Bellard
# virsh --version
0.8.3
# grep -vE '^($|#)' /etc/libvirt/qemu.conf
user = "oneadmin"
group = "oneadmin"
dynamic_ownership = 0
# id oneadmin
uid=1001(oneadmin) gid=1001(oneadmin)
groups=1001(oneadmin),106(kvm),108(libvirt)
# ls -al /dev/kvm
crw-rw---- 1 root kvm 10, 232 Jul 25 11:23 /dev/kvm
### Host B
# kvm --version
QEMU PC emulator version 0.12.5 (qemu-kvm-0.12.5), Copyright (c)
2003-2008 Fabrice Bellard
# virsh --version
0.8.3
# grep -vE '^($|#)' /etc/libvirt/qemu.conf
user = "oneadmin"
group = "oneadmin"
dynamic_ownership = 0
# id oneadmin
uid=1001(oneadmin) gid=1001(oneadmin)
groups=1001(oneadmin),106(kvm),108(libvirt)
# ls -al /dev/kvm
crw-rw---- 1 root kvm 10, 232 Jul 25 11:23 /dev/kvm
Doesn't matter on which host the VM gets deployed, the error is the
same. The error follows:
LC_ALL=C
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
HOME=/root USER=root LOGNAME=root QEMU_AUDIO_DRV=none /usr/bin/kvm -S
-M pc-0.12 -enable-kvm -m 1024 -smp 1,sockets=1,cores=1,threads=1
-name one-4 -uuid a7db4cd7-e258-503a-cc57-59d2dc1135ea -nodefaults
-chardev
socket,id=monitor,path=/var/lib/libvirt/qemu/one-4.monitor,server,nowait
-mon chardev=monitor,mode=readline -rtc base=utc -boot c -device
lsi,id=scsi0,bus=pci.0,addr=0x5 -drive
file=/var/lib/one/datastores/0/4/disk.0,if=none,id=drive-scsi0-0-0,boot=on,format=qcow2
-device
scsi-disk,bus=scsi0.0,scsi-id=0,drive=drive-scsi0-0-0,id=scsi0-0-0
-device
rtl8139,vlan=0,id=net0,mac=02:00:0a:41:02:65,bus=pci.0,addr=0x3 -net
tap,fd=36,vlan=0,name=hostnet0 -device
rtl8139,vlan=1,id=net1,mac=02:00:0a:41:03:65,bus=pci.0,addr=0x4 -net
tap,fd=37,vlan=1,name=hostnet1 -usb -vnc 0.0.0.0:4 <http://0.0.0.0:4>
-vga cirrus -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
open /dev/kvm: Permission denied
Could not initialize KVM, will disable KVM support
I don't have AppArmor installed or any other tool of this kind. It's
just a stock Debian Squeeze install. OpenNebula was compiled on
another machine and installed on Host A which is the frontend.
Does anyone of you have any idea about this error? I have Googled
around but could not find any answer. Everything seems correct as per
OpenNebula KVM documentation [1].
Thank you for your time invested in reading this email. Cheers and
Goodwill,
Valentin Bud
[1]: http://opennebula.org/documentation:rel3.6:kvmg
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Grid Computing and Clusters Group
Barcelona Supercomputing Center (BSC-CNS)
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