Hi, I'm quite new here. I try to compile vmplayer-1.9 modules in a debian 2.6.18-amd64 vserver with name "vmplayer". Is the error shown below caused by the vserver special? Is a vserver allowed to load modules to the kernel environment? Perhaps the modules have to be loaded (and compiled) by the host? vmplayer:/home/install/vmware-player-distrib# ./vmware-install.pl [...] Trying to find a suitable vmmon module for your running kernel. None of the pre-built vmmon modules for VMware Player is suitable for your running kernel. Do you want this program to try to build the vmmon module for your system (you need to have a C compiler installed on your system)? [yes] Using compiler "/usr/bin/gcc". Use environment variable CC to override. What is the location of the directory of C header files that match your running kernel? [/lib/modules/2.6.18-6-vserver-amd64/build/include] Extracting the sources of the vmmon module. Building the vmmon module. Using 2.6.x kernel build system. make: Entering directory `/tmp/vmware-config0/vmmon-only' make -C /lib/modules/2.6.18-6-vserver-amd64/build/include/.. SUBDIRS=$PWD SRCROOT=$PWD/. modules make[1]: Entering directory `/usr/src/linux-headers-2.6.18-6-vserver-amd64' CC [M] /tmp/vmware-config0/vmmon-only/linux/driver.o CC [M] /tmp/vmware-config0/vmmon-only/linux/hostif.o CC [M] /tmp/vmware-config0/vmmon-only/common/cpuid.o CC [M] /tmp/vmware-config0/vmmon-only/common/hash.o CC [M] /tmp/vmware-config0/vmmon-only/common/memtrack.o CC [M] /tmp/vmware-config0/vmmon-only/common/phystrack.o CC [M] /tmp/vmware-config0/vmmon-only/common/task.o CC [M] /tmp/vmware-config0/vmmon-only/common/vmx86.o CC [M] /tmp/vmware-config0/vmmon-only/vmcore/moduleloop.o LD [M] /tmp/vmware-config0/vmmon-only/vmmon.o Building modules, stage 2. MODPOST CC /tmp/vmware-config0/vmmon-only/vmmon.mod.o LD [M] /tmp/vmware-config0/vmmon-only/vmmon.ko make[1]: Leaving directory `/usr/src/linux-headers-2.6.18-6-vserver-amd64' cp -f vmmon.ko ./../vmmon.o make: Leaving directory `/tmp/vmware-config0/vmmon-only' Unable to make a vmmon module that can be loaded in the running kernel: insmod: error inserting '/tmp/vmware-config0/vmmon.o': -1 Operation not permitted There is probably a slight difference in the kernel configuration between the set of C header files you specified and your running kernel. You may want to rebuild a kernel based on that directory, or specify another directory. For more information on how to troubleshoot module-related problems, please visit our Web site at "http://www.vmware.com/download/modules/modules.html" and "http://www.vmware.com/support/reference/linux/prebuilt_modules_linux.html". Execution aborted. vmplayer:/home/install/vmware-player-distrib# uname -a Linux vmplayer 2.6.18-6-vserver-amd64 #1 SMP Fri Dec 12 06:15:44 UTC 2008 x86_64 GNU/Linux thx Ekkard