[centos6.4] qemu-kvm 환경에서 VM에 OS 설치 시 문제가 있습니다.

안녕하세요.
CentOS 6.4 환경에서 qemu-kvm을 설치하였고 Windows7x64 를 VM에 설치하려고 합니다.

가상머신 관리자를 이용하여 Windows 7 iso파일 선택 후, 마지막 단계인 5 중 5단계에서 '완료(F)'버튼을 클릭하면 아래와 같이 오류 메시지가 발생합니다.
왜그런지 고수님들 부탁드립니다.

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설치를 완료할 수 없음: 'internal error Process exited while reading console log output: char device redirected to /dev/pts/1
2015-07-31T06:07:48.511823Z qemu-kvm: -drive file=/dev/sdc1/Windows7x64.img,if=none,id=drive-ide0-0-0,format=qcow2,cache=none: could not open disk image /dev/sdc1/Windows7x64.img: Invalid argument
'

Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 44, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/create.py", line 1928, in do_install
guest.start_install(False, meter=meter)
File "/usr/lib/python2.6/site-packages/virtinst/Guest.py", line 1229, in start_install
noboot)
File "/usr/lib/python2.6/site-packages/virtinst/Guest.py", line 1297, in _create_guest
dom = self.conn.createLinux(start_xml or final_xml, 0)
File "/usr/lib64/python2.6/site-packages/libvirt.py", line 2686, in createLinux
if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self)
libvirtError: internal error Process exited while reading console log output: char device redirected to /dev/pts/1
2015-07-31T06:07:48.511823Z qemu-kvm: -drive file=/dev/sdc1/Windows7x64.img,if=none,id=drive-ide0-0-0,format=qcow2,cache=none: could not open disk image /dev/sdc1/Windows7x64.img: Invalid argument
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이거 진짜 왜그런건가요? 해결 방법 좀 알려주세요..ㅠ