The Saved State Manager saves and loads virtual machine state. The Configuration Manager provides a tree structure which holds configuration settings for the VM and all emulated devices.

The Time Manager handles timers and all aspects of time inside guests. The Page Manager is a component that controls guest paging. Through PDM, third-party developers can add new virtual devices to Oracle VM VirtualBox without having to change Oracle VM VirtualBox itself.

The Pluggable Device Manager is an abstract interface between the VMM and emulated devices which separates device implementations from VMM internals and makes it easy to add new emulated devices. The Guest Interface Manager provides support for various paravirtualization interfaces to the guest. The Hardware Acceleration Manager provides support for VT-x and AMD-V. The Trap Manager intercepts and processes guest traps and exceptions. The Execution Manager controls execution of guest code. The Virtual Machine Monitor, which is the heart of the hypervisor. Whenever Oracle VM VirtualBox accesses host operating features, it does so through this library for cross-platform portability. It will offer a guided procedure to link the disk image again, so don't worry.A portable runtime library which abstracts file access, threading, and string manipulation. If you move it afterwards, VBox will not find it anymore and will complain about this issue on next start (or when you try to start the VM). It's recommended to place the disk image in a permanent place before linking it with VBox. Click Create to end this guided procedure. OpenWrt will work fine with much less RAM than the recommended amount, 128 MiB will be enough.Ĭhoose Use an existing hard disk file, click the file icon to open Virtual Media Manager, click Add and choose your openwrt.vdi file using the file chooser window.

Start VirtualBox and click New to add a virtual machine (VM)Ĭhoose a Name for your virtual machine, choose Linux for Type, and Linux 2.6 / 3.x / 4.x (64-bit) for Version, then click Next. Tutorial and screenshots from VirtualBox 5.1.8 on Linux host, on Windows or macOS hosts there will be some cosmetic differences (a different top bar) but the VirtualBox panels and buttons will be exactly the same

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