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VirtualBox was installed.

You need to load the vboxdrv kernel module via /boot/loader.conf:

vboxdrv_load="YES"

You also have to add all users to your vboxusers group in order to use vbox.

% pw groupmod vboxusers -m jerry

Reboot the machine to load the needed kernel modules.


Bridging Support:
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For bridged networking please add the following line to your /etc/rc.conf:

vboxnet_enable="YES"


USB Support:
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For USB support your user needs to be in the operator group and needs read
and write permissions to the USB device.

% pw groupmod operator -m jerry

Add the following to /etc/devfs.rules (create if it doesn't exist):

[system=10]
add path 'usb/*' mode 0660 group operator

To load these new rule add the following to /etc/rc.conf:

devfs_system_ruleset="system"

Then restart devfs to load the new rules:

% /etc/rc.d/devfs restart


Troubleshooting:
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Running VirtualBox as non-root user may fail with a fatal error
NS_ERROR_FACTORY_NOT_REGISTERED. In this case delete /tmp/.vbox-*-ipc file.

If you experience "Network: write Failed: Cannot allocate memory" errors
try to increase net.graph.maxdata in /boot/loader.conf

If you are using AIO, then increase these limits (PR#168298):
vfs.aio.max_buf_aio=8192
vfs.aio.max_aio_queue_per_proc=65536
vfs.aio.max_aio_per_proc=8192
vfs.aio.max_aio_queue=65536
To check if AIO is used use: kldstat -v | grep aio

Check wiki page for known issues and troubleshooting:
http://wiki.freebsd.org/VirtualBox

Please report any problems to emulation@. Thanks!

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