To check if Virtual Box Extension pack is installed in a system, you can try one of the following ways:
1. If you are looking for a file in the system, look for the “license” file which is "ExtPack-license.rtf”
2. Alternately, you can try the following:
•
MacOS:
/Applications/VirtualBox.app/Contents/MacOS/ExtensionPacks/Oracle_VM_VirtualBox_
Extension_Pack/ExtPack-license.html
•
Linux:
/usr/lib/virtualbox/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack/ExtPacklicense.html
•
Windows:
C:\ProgramFiles\Oracle\VirtualBox\ExtensionPacks\Oracle_VM_VirtualBox_Extension_P
ack\ExtPack-license.html
On MS Windows platform the PATH could change (if the user defines a custom install path for
VirtualBox).
3. You can also execute following command on the system:
On Linux/Mac OS X/Solaris:
vbox@wei01-b8k-5:~$ VBoxManage list extpacks
Extension Packs: 1
Pack no. 0:
Oracle VM VirtualBox Extension Pack
Version:
5.1.28
Revision:
117968
Edition:
Description: USB 2.0 and USB 3.0 Host Controller, Host Webcam,
VirtualBox RDP, PXE ROM, Disk Encryption, NVMe.
VRDE Module: VBoxVRDP
Usable:
true
Why unusable:
On MS Windows:
VBoxManage.exe list extpacks