

I don't know for sure how to stop/restart these drivers - I had the luck that FUSE for OS X asked to update itself after I opened its preferences pane, this caused all fuse devices to disappear.Īfter this, VMware Fusion was able to its drivers and the VMs booted again.Įdit: I had the same issue again after using a VeraCrypt mounted image. Kext file ).The USB kext on OS X is loaded at the time of start of the system, this can be loaded / unloaded using kextload or kextunload command. When I ran ls -l /dev/ | grep '^c' | sort -nk 5 I discovered that FUSE for OS X and Tuxera NTFS each appeared about 20 times. Block or Disable USB Port on Mac OS X by unloading the Kernel Extension USB storage devices can also be blocked or disabled by unloading the USB storage input /output kernel extension (. VMware Fusion tries to load its device drivers on app startup, so if every major device number is already occupied, the drivers won't start.Ī VMware employee presented some ways to find out which drivers are using major device numbers in this post: I had the same issue and it seems OS X only has a limited amount of major device numbers, which are used by many different device drivers.

In case anyone is running into this with VMware Fusion 6 on Yosemite.
