If you cannot open the guest session and get a VERR_NOT_FOUND VirtualBox error, follow the tips, solutions, and workarounds mentioned below. Check if “VBoxGuestAdditions.iso”n exists Insert Guest ...

Installing the Virtual Machine Additions in your Linux guest operating system will help improve guest and host synchronization for time sync, heartbeat generation and coordinating shutdown operations, ...

Supporting diverse platforms and application workloads, the latest release of Oracle's server virtualization product, extends support of Oracle VM Guest Additions to major guest operating systems - ...