VMware Server 2 is not compatible with Fedora 11 x86_64, i.e. kernels 2.6.29.4 and up. So don't bother to try compiling vmmon modules for VMware Server. If you encounter problems while compiling the vboxdrv and vmmon kernel modules, it may be that your local kernel source tree is not properly configured. In my case: # cd /lib/modules/2.6.30.5-enming.teo # rm build (symbolic link) # ln -s /usr/src/kernels/linux-2.6.30.5 build # rm source (symblic link) # ln -s /usr/src/kernels/linux-2.6.30.5 source Go to your kernel source tree. Some kernel header files may not be present. # cd /usr/src/kernels/linux-2.6.30.5 If .config exists, # make oldconfig # make prepare This will generate the missing kernel headers. For VirtualBox, # /etc/init.d/vboxdrv setup Above step will recompile linux kernel modules for VirtualBox. There will be 3 kernel modules. To load the vboxdrv kernel module, # /etc/init.d/vboxdrv start Make sure that your .vmdk files have the correct owner, otherwise you will encounter error trying to add VMDK image in virtualbox. For VMware Workstation, The graphical installer will automatically compile the vmmon modules. There is no command line interface for you to compile the vmmon kernel modules. -- Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering) Alma Maters: (1) Singapore Polytechnic (2) National University of Singapore My Primary Blog: <a href="http://teo-en-ming-aka-zhang-enming.blogspot.com">http://teo-en-ming-aka-zhang-enming.blogspot.com</a> My Secondary Blog: <a href="http://enmingteo.wordpress.com">http://enmingteo.wordpress.com</a> My Youtube videos: <a href="http://www.youtube.com/user/enmingteo">http://www.youtube.com/user/enmingteo</a> Email: <a href="mailto:space.time.universe@gmail.com">space.time.universe@gmail.com</a> Mobile Phone (Starhub Prepaid): +65-8369-2618 Street: Bedok Reservoir Road Country: Singapore