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VirtualBox最早是德国一家软件公司InnoTek所开发的虚拟系统软件，后来被Sun收购，改名为Sun VirtualBox，在Sun被Oracle收购后现改名为Oracle VirtualBox。因为他是开源的，不同于VM，而且功能强大，可以在Linux/Mac和Windows主机中运行，并支持在其中安装Windows（NT4.0、2000、XP、Server2003、Vista）、DOS/
Windows 3.x、Linux（2.4和2.6）、OpenBSD等系列的客戶操作系统，假如你曾经有用过虚拟机软件的经历的话，相信使用 VirtualBox 不在话下。即便你是一个新手，也没有关系。VirtualBox 提供了详细的文档，可以助你在短期内入门。
Changes in VirtualBox 4.0.10（2011-06-27）：
* GUI: fixed disappearing settings widgets on KDE hosts（bug #6809）
* Storage: fixed hang under rare circumstances with flat VMDK images
* Storage: a saved VM could not be restored under certain circumstances after the host kernel was updated（bug #8983）
* Storage: refuse to create a medium with an invalid variant（for example Split2G with VDI; bug #7227）
* Snapshots: none of the hard disk attachments must be attached to another VM in normal mode when creating a snapshot
* USB: fixed occasional VM hangs with SMP guests（bug #4580）
* USB: proper device detection on RHEL/OEL/CentOS 5 guests（partial fix for bug #8978）
* ACPI: force the ACPI timer to return monotonic values for improve behavior with SMP Linux guests（bug #8511 and others）
* RDP: fixed screen corruption under rare circumstances（bug #8977）
* rdesktop-vrdp: updated to version 1.7.0
* OVF: under rare circumstances some data at the end of a VMDK file was not written during export
* Mac OS X hosts: Lion fixes
* Mac OS X hosts: GNOME 3 fix
* Linux hosts: fixed VT-x detection on Linux 3.0 hosts（bug #9071）
* Linux hosts: fixed Python 2.7 bindings in the universal Linux binaries
* Windows hosts: fixed leak of thread and process handles
* Windows Additions: fixed bug when determining the extended version of the Guest Additions（4.0.8 regression; bug #8948）
* Solaris Additions: fixed installation to 64-bit Solaris 10u9 guests （4.0.8 regression）
* Linux Additions: RHEL6.1/OL6.1 compile fix
* Linux Additions: fixed a memory leak during VBoxManage guestcontrol execute（bug #9068）
LUPA开源社区
Windows 3.x、Linux（2.4和2.6）、OpenBSD等系列的客戶操作系统，假如你曾经有用过虚拟机软件的经历的话，相信使用 VirtualBox 不在话下。即便你是一个新手，也没有关系。VirtualBox 提供了详细的文档，可以助你在短期内入门。
Changes in VirtualBox 4.0.10（2011-06-27）：
* GUI: fixed disappearing settings widgets on KDE hosts（bug #6809）
* Storage: fixed hang under rare circumstances with flat VMDK images
* Storage: a saved VM could not be restored under certain circumstances after the host kernel was updated（bug #8983）
* Storage: refuse to create a medium with an invalid variant（for example Split2G with VDI; bug #7227）
* Snapshots: none of the hard disk attachments must be attached to another VM in normal mode when creating a snapshot
* USB: fixed occasional VM hangs with SMP guests（bug #4580）
* USB: proper device detection on RHEL/OEL/CentOS 5 guests（partial fix for bug #8978）
* ACPI: force the ACPI timer to return monotonic values for improve behavior with SMP Linux guests（bug #8511 and others）
* RDP: fixed screen corruption under rare circumstances（bug #8977）
* rdesktop-vrdp: updated to version 1.7.0
* OVF: under rare circumstances some data at the end of a VMDK file was not written during export
* Mac OS X hosts: Lion fixes
* Mac OS X hosts: GNOME 3 fix
* Linux hosts: fixed VT-x detection on Linux 3.0 hosts（bug #9071）
* Linux hosts: fixed Python 2.7 bindings in the universal Linux binaries
* Windows hosts: fixed leak of thread and process handles
* Windows Additions: fixed bug when determining the extended version of the Guest Additions（4.0.8 regression; bug #8948）
* Solaris Additions: fixed installation to 64-bit Solaris 10u9 guests （4.0.8 regression）
* Linux Additions: RHEL6.1/OL6.1 compile fix
* Linux Additions: fixed a memory leak during VBoxManage guestcontrol execute（bug #9068）
LUPA开源社区