Re: [libvirt] can't get right capabilities

On 06/04/2012 02:17 PM, Li Zhang wrote: > Hi, > > I am trying to use x86 machine to create VMs. > But one error occurs. > > [root@mcd kvm-test]# virsh create test.xml > error: Failed to create domain from test.xml > error: unknown OS type hvm > > My xml file is as the following: > > <domain type='kvm'> > <name>test</name> > <memory>524288</memory> > <memorybacking> > <hugepages/> > </memorybacking> > <vcpu>2</vcpu> > <os> > <type arch='x86_64' machine='pc'>hvm</type> > </os> > <features> > <acpi/> > </features> > <clock offset='utc'/> > <devices> > <emulator>/usr/bin/qemu-system-x86_64</emulator> > <disk type='file' device='disk' > > <driver name='qemu' type='raw'/> > <source file='/home/zhlbj/kvm-test/disk1'/> > <target dev='sda' bus='scsi'/> > </disk> > <interface type='bridge'> > <source bridge='virbr0'/> > <mac address='52:54:00:19:bc:0c'/> > </interface> > <serial type='pty'> > <target port='0'/> > </serial> > <console type='pty'> > <target type='serial' port='0'/> > </console> > <memballoon model="none"/> > </devices> > </domain> > > > I check kvm module, it is available. > > [root@mcd kvm-test]# lsmod |grep kvm > kvm_intel 119308 4 > kvm 344876 1 kvm_intel > > But I tried the capabilities, it is not right. > There is no guest capabilities. > > <capabilities> > > <host> > <uuid>d4ff0166-0f8b-e111-ab17-78a277034000</uuid> > <cpu> > <arch>x86_64</arch> > <model>Nehalem</model> > <vendor>Intel</vendor> > <topology sockets='1' cores='4' threads='1'/> > <feature name='rdtscp'/> > <feature name='avx'/> > <feature name='osxsave'/> > <feature name='xsave'/> > <feature name='tsc-deadline'/> > <feature name='x2apic'/> > <feature name='pdcm'/> > <feature name='xtpr'/> > <feature name='tm2'/> > <feature name='est'/> > <feature name='smx'/> > <feature name='vmx'/> > <feature name='ds_cpl'/> > <feature name='monitor'/> > <feature name='dtes64'/> > <feature name='pclmuldq'/> > <feature name='pbe'/> > <feature name='tm'/> > <feature name='ht'/> > <feature name='ss'/> > <feature name='acpi'/> > <feature name='ds'/> > <feature name='vme'/> > </cpu> > <power_management> > <suspend_mem/> > <suspend_disk/> > <suspend_hybrid/> > </power_management> > <migration_features> > <live/> > <uri_transports> > <uri_transport>tcp</uri_transport> > </uri_transports> > </migration_features> > <secmodel> > <model>selinux</model> > <doi>0</doi> > </secmodel> > </host> > > </capabilities> > > > This problem occurs some times. > When I tried to find this problem, it didn't occur. > Now it occurs again. It's a little strange. > > Is there anything I miss? > > It may be you're missing some rpm packages installation such as yajl(yajl-devel) or usbredir.