求指导 fedora 16 安装时 就已经选择了虚拟机安装，结果在虚拟机下创建win8时出错

futurelinux

无法完成安装：'内部错误 Process exited while reading console log output: char device redirected to /dev/pts/2
qemu-kvm: -drive file=/home/yang/ndows8-ConsumerPreview-64bit-ChineseSimplified.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw: could not open disk image /home/yang/ndows8-ConsumerPreview-64bit-ChineseSimplified.iso: Permission denied
'

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 45, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/create.py", line 1911, in do_install
    guest.start_install(False, meter=meter)
  File "/usr/lib/python2.7/site-packages/virtinst/Guest.py", line 1239, in start_install
    noboot)
  File "/usr/lib/python2.7/site-packages/virtinst/Guest.py", line 1307, in _create_guest
    dom = self.conn.createLinux(start_xml or final_xml, 0)
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 2077, in createLinux
    if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self)
libvirtError: 内部错误 Process exited while reading console log output: char device redirected to /dev/pts/2
qemu-kvm: -drive file=/home/yang/ndows8-ConsumerPreview-64bit-ChineseSimplified.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw: could not open disk image /home/yang/ndows8-ConsumerPreview-64bit-ChineseSimplified.iso: Permission denied