I'm using Ubuntu 10.04 and kernel: 2.6.38-11-generic-pae. While using VirtualBox, i got this error: Kernel driver not installed (rc=-1908) Please install the virtualbox-ose-dkms package and execute 'modprobe vboxdrv' as root. I tried to execute the command: sudo modprobe vboxdrv and got this error: FATAL: Module vboxdrv not found. After that, i execute this: sudo aptitude install virtualbox-ose-guest-dkms duongnv@duongnv-laptop:~$ sudo aptitude install virtualbox-ose-guest-dkms Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done The following partially installed packages will be configured: virtualbox-ose-guest-dkms 0 packages upgraded, 0 newly installed, 0 to remove and 105 not upgraded. Need to get 0B of archives. After unpacking 0B will be used. Writing extended state information... Done Setting up virtualbox-ose-guest-dkms (3.1.6-dfsg-2ubuntu2) ... Removing old virtualbox-ose-guest-3.1.6 DKMS files... ------------------------------ Deleting module version: 3.1.6 completely from the DKMS tree. ------------------------------ Done. Loading new virtualbox-ose-guest-3.1.6 DKMS files... First Installation: checking all kernels... Building only for 2.6.38-11-generic-pae Building for architecture i686 Building initial module for 2.6.38-11-generic-pae Error! Bad return status for module build on kernel: 2.6.38-11-generic-pae (i686) Consult the make.log in the build directory /var/lib/dkms/virtualbox-ose-guest/3.1.6/build/ for more information. dpkg: error processing virtualbox-ose-guest-dkms (--configure): subprocess installed post-installation script returned error exit status 10 Errors were encountered while processing: virtualbox-ose-guest-dkms E: Sub-process /usr/bin/dpkg returned an error code (1) A package failed to install. Trying to recover: Setting up virtualbox-ose-guest-dkms (3.1.6-dfsg-2ubuntu2) ... Removing old virtualbox-ose-guest-3.1.6 DKMS files... ------------------------------ Deleting module version: 3.1.6 completely from the DKMS tree. ------------------------------ Done. Loading new virtualbox-ose-guest-3.1.6 DKMS files... First Installation: checking all kernels... Building only for 2.6.38-11-generic-pae Building for architecture i686 Building initial module for 2.6.38-11-generic-pae Error! Bad return status for module build on kernel: 2.6.38-11-generic-pae (i686) Consult the make.log in the build directory /var/lib/dkms/virtualbox-ose-guest/3.1.6/build/ for more information. dpkg: error processing virtualbox-ose-guest-dkms (--configure): subprocess installed post-installation script returned error exit status 10 Errors were encountered while processing: virtualbox-ose-guest-dkms Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done