Re: [libvirt-users] Fedora 19/20 new install :Unable to create vcpu cgroup

Hi, I have now 2 servers, each with 128Gb memory and 6c/12t processors and 2Tb RAID1 disks. It should large enough. 1 server is running Fedora 20 kernel 3.14.7-200.fc20.x86_64. I set the second server back to Fedora 19 running kernel 3.14.4-100.fc19.x86_64. I am running virt-manager-1.0.1-3.fc20.noarch from my Fedora 20 desktop kernel 3.14.6-200.fc20.x86_64. I have created a VM Fedora20 onto my desktop, I tested there and it's OK, and I have transfered the disk image to the 2 servers. On Fedora 19 server, I can start this image, but it seems it is not fully started because I can't connect to it through the virt-manager, nor I can't find its IP address to try ssh. I tried to create a new VM and it works just fine. On Fedora 20 I tried to create a new VM based on Fedora20 DVD.iso. I am getting this message when the VM is started: Impossible de terminer l'installation : « internal error: process exited while connecting to monitor: Failed to create chardev » Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 91, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/create.py", line 1787, in do_install guest.start_install(meter=meter) File "/usr/share/virt-manager/virtinst/guest.py", line 403, in start_install noboot) File "/usr/share/virt-manager/virtinst/guest.py", line 467, in _create_guest dom = self.conn.createLinux(start_xml or final_xml, 0) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 2897, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self) libvirtError: internal error: process exited while connecting to monitor: Failed to create chardev So I will format all my servers to Fedora 19. Thanks for help Patrick Le 16/06/2014 07:08, Kashyap Chamarthy a écrit :