Re: Fusion 5: Could not open /dev/vmmon:... after Yosemite installation

Hi ,

I also faced the same issue with Windows 7 VM after upgrading to Yosmite

I followed the below KB article

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003484

deleted bunch of files mentioned fixed the Disk Permissions

Reinstalled Fusion 6 and it is working perfectly fine.

I do not think you need to upgrade to Fusion 7 just for Yosmite

Regards,

Vinu