启动虚拟机的时候老出现：error: Cannot check QEMU binary /bin/qemu-kvm: No such file or directory
我用的是以下xml配置文件：
<domain type='kvm'>
<name>rheltest</name>
<uuid>32b95fab-6d78-4e28-beca-2c3988ff8cfe</uuid>
<memory unit='KiB'>1048576</memory>
<currentMemory unit='KiB'>1048576</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc-1.2'>hvm</type>
<boot dev='cdrom'/>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/bin/qemu-kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/home/lisp/code/auto-rhel/virt/rheltest'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' buss='0' target='0' unit='0'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/home/lisp/os.iso/rhelcustom.iso'/>
<target dev='hdc' bus='ide'/>
<readonly/>
</disk>
<controller type='usb' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>
<controller type='ide' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:78:f9:59'/>
<source bridge='virbr0'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoprot='yes'/>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</memballoon>
</devices>
</domain>
在没有找到/bin/qemu-kvm这个文件，后来才知道，对ubuntu的应该对应是/usr/bin/qemu这个文件，把上面xml配置文件对应的那行改为如下就行了：
<emulator>/usr/bin/qemu</emulator>