VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software.
Some of the features of VirtualBox are:
* Modularity. VirtualBox has an extremely modular design with well-defined internal programming interfaces and a client/server design. This makes it easy to control it from several interfaces at once: for example, you can start a virtual machine in a typical virtual machine GUI and then control that machine from the command line, or possibly remotely. VirtualBox also comes with a full Software Development Kit: even though it is Open Source Software, you don't have to hack the source to write a new interface for VirtualBox.
* Virtual machine descriptions in XML. The configuration settings of virtual machines are stored entirely in XML and are independent of the local machines. Virtual machine definitions can therefore easily be ported to other computers.
Change Log
This version is a major update. The following major new features were added:
* Teleportation (aka live migration); migrate a live VM session from one host to another (see the manual for more information)
* VM states can now be restored from arbitrary snapshots instead of only the last one, and new snapshots can be taken from other snapshots as well ("branched snapshots"; see the manual for more information)
* 2D video acceleration for Windows guests; use the host video hardware for overlay stretching and color conversion (see the manual for more information)
* More flexible storage attachments: CD/DVD drives can be attached to arbitrary storage controllers, and there can be more than one such drive (the manual for more information)
* The network attachment type can be changed while a VM is running
* Complete rewrite of experimental USB support for OpenSolaris hosts making use of the latest USB enhancements in Solaris Nevada 124 and higher
* Significant performance improvements for PAE and AMD64 guests (VT-x and AMD-V only; normal (non-nested) paging)
* Experimental support for EFI (Extensible Firmware Interface; see the manual for more information)
* Support for paravirtualized network adapters (virtio-net; see the manual for more information)
In addition, the following items were fixed and/or added:
* VMM: guest SMP fixes for certain rare cases
* GUI: snapshots include a screenshot
* GUI: locked storage media can be unmounted by force
* GUI: the a log window grabbed all key events from other GUI windows (bug #5291)
* GUI: allow to disable USB filters (bug #5426)
* GUI: improved memory slider in the VM settings
* GUI: the VirtualBox website couldn't be opened from the help menu (bug #4559)
* 3D support: major performance improvement in VBO processing
* 3D support: added GL_EXT_framebuffer_object, GL_EXT_compiled_vertex_array support
* 3D support: fixed crashes in FarCry, SecondLife, Call of Duty, Unreal Tournament, Eve Online (bugs #2801, #2791)
* 3D support: fixed graphics corruption in World of Warcraft (#2816)
* 3D support: fixed Final frame of Compiz animation not updated to the screen (#4653)
* 3D support: fixed incorrect rendering of non ARGB textures under compiz
* iSCSI: support iSCSI targets with more than 2TiB capacity
* VRDP: fixed occasional VRDP server crash (bug #5424)
* Network: fixed the E1000 emulation for QNX (and probably other) guests (bug #3206)
* NAT: added host resolver DNS proxy (see the manual for more information)
* VMDK: fixed incorrectly rejected big images split into 2G pieces (bug #5523, #2787)
* VMDK: fixed compatibility issue with fixed or raw disk VMDK files (bug #2723)
* VHD: fixed incompatibility with Hyper-V
* Support for Parallels version 2 disk image (HDD) files; see the manual for more information
* OVF: create manifest files on export and verify the content of an optional manifest file on import
* OVF: fixed memory setting during import (bug #4188)
* Mouse device: now five buttons are passed to the guest (bug #3773)
* VBoxHeadless: fixed loss of saved state when VM fails to start
* VBoxSDL: fixed crash during shutdown (Windows hosts only)
* X11 based hosts: allow the user to specify their own scan code layout (bug #2302)
* Mac OS X hosts: don't auto show the menu and dock in fullscreen (bug #4866)
* Mac OS X hosts (64 bit): don't interpret mouse wheel events as left click (bug #5049)
* Mac OS X hosts: fixed a VM abort during shutdown under certain conditions
* Solaris hosts: combined the kernel interface package into the VirtualBox main package
* Solaris hosts: support for OpenSolaris Boomer architecture (with OSS audio backend).
* Shared folders: VBOXSVR is visible in Network folder (Windows guests, bug #4842)
* Shared folders: performance improvements (Windows guests, bug #1728)
* Windows, Linux and Solaris Additions: added balloon tip notifier if VirtualBox host version was updated and Additions are out of date
* Solaris guests: fixed keyboard emulation (bug #1589)
* Solaris Additions: fixed as_pagelock() failed errors affecting guest properties (bug #5337)
* Windows Additions: added automatic logon support for Windows Vista and Windows 7
* Windows Additions: improved file version lookup for guest OS information
* Windows Additions: fixed runtime OS detection on Windows 7 for session information
* Windows Additions: fixed crash in seamless mode (contributed by Huihong Luo)
* Linux Additions: added support for uninstalling the Linux Guest Additions (bug #4039)
* Linux guest shared folders: allow mounting a shared folder if a file of the same name as the folder exists in the current directory (bug #928)
* SDK: added object-oriented web service bindings for PHP5
发表于 2009-12-28 21:46
发表于 2009-12-28 22:01
