Changes between Version 16 and Version 17 of User_FAQ

User_FAQ

v16	v17
15	15	* When the kernel module doesn't load, i.e. you get an '''"Error inserting vboxdrv: Invalid argument",''' check (as root) the output of the "dmesg" command. In 90% of all cases, this is a problem with Linux 2.6.19 and higher, and the message will be: "NMI watchdog active -- refused to load the kernel module! Please disable the NMI watchdog by specifying 'nmi_watchdog=0' at kernel command line." Add this option to your grub configuration, reboot, and the module should load.
16	16
	17	* If '''USB doesn't work,''' check your usbfs permissions. See section 9.4.6 of the [http://www.virtualbox.org/download/UserManual.pdf User Manual].
	18
17	19	* Debian packages: If the installation of the !VirtualBox_*.deb package was not successful because the compilation of the kernel module fails, it might not be possible to remove the package nor to install other packages as the pre-remove (prerm) script of the package (which is executed prior to package removing or upgrading) aborts with an error '''"(Kernel module not found)...fail!"'''. In that case do the following:
18	20	* Edit /etc/init.d/virtualbox and change line 129 from `'exit 1'` to `'exit 0'`