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Virtualbox2.2.0正式版发布&附下载地址

      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,性能有很大的提高.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 (NT 4.0、2000、XP、Server 2003、Vista)、DOS/Windows 3.x、Linux (2.4 和 2.6)、OpenBSD 等系列的客户操作系统.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。
      个人对它的总结是容易上手、设置简单、跨平台,这几个特性足以让我抛弃臃肿而复杂的VMWare。
      Virtualbox2.2.0官方下载地址
      Virtualbox2.2.0国内下载地址

      主要更新内容
      VirtualBox 2.2.0 (released 2009-08-04)

      This version is a major update(此版本有重大更新). The following major new features were added:
      OVF (Open Virtualization Format) appliance import and export (see chapter 3.8, Importing and exporting virtual machines, User Manual page 55)
      Host-only networking mode (see chapter 6.7, Host-only networking, User Manual page 88)
      Hypervisor optimizations with significant performance gains for high context switching rates
      Raised the memory limit for VMs on 64-bit hosts to 16GB
      VT-x/AMD-V are enabled by default for newly created virtual machines
      USB (OHCI & EHCI) is enabled by default for newly created virtual machines (Qt GUI only)
      Experimental USB support for OpenSolaris hosts
      Shared folders for Solaris and OpenSolaris guests
      OpenGL 3D acceleration for Linux and Solaris guests (see chapter 4.8, Hardware 3D acceleration (OpenGL), User Manual page 70)
      Added C API in addition to C++, Java, Python and Web Services
      In addition, the following items were fixed and/or added:
      VMM: FreeBSD guest related fix for V86 flags (bug #2342)
      VMM: fixed guru meditation when booting an AsteriskNow Linux VM (bug #2342)
      VMM: fixed PGMPOOLKIND_FREE guru meditation (bugs #3356, #3431)
      VMM: fixed Windows XP boot hang (guest PAE + nested paging only)
      VMM: allow mixing of VT-x/AMD-V and software virtualization
      VMM: fixed extremely slow safe mode booting in e.g. Windows 2008 (VT-x/AMD-V only)
      VMM: significant speedup of certain GRUB boot loaders (e.g. Solaris) (VT-x/AMD-V only)
      VMM: real-mode IOPL fix for DOS guests (VT-x only)
      VMM: fixed VT-x detection with certain BIOSes that enable VT-x, but don’t set the lock bit in MSR_IA32_FEATURE_CONTROL
      VMM: fixed hibernation issues on Windows XP hosts (VT-x only; bug #1794)
      VMM: properly emulate RDMSR from the TSC MSR, should fix some NetBSD guests
      VMM: emulate RDPMC; fixes Windows guests crashes when using the Kaspersky virus scanner (bug #1778)
      NAT: fixed truncated downloads (FTP) (bug #3257)
      NAT: blocked UDP packets caused a crash (bug #3426)
      NAT: allow to configure the next server and the boot file via VBoxManage (bug #2759)
      IDE: fixed hard disk upgrade from XML-1.2 settings (bug #1518)
      Hard disk: support more VMDK file variants (including fixed-size ESX server images)
      Hard disks: refuse to start the VM if a disk image is not writable
      USB: further reduced host CPU utilization for OHCI and EHCI; the “VBoxInternal/Devices/usb-ohci/0/Config/FrameRate” CFG key is no longer necessary and no longer supported
      USB: fixed BSOD on the host with certain USB devices (Windows hosts only; bug #1654)
      E1000: properly handle cable disconnects (bug #3421)
      VRDP: fixed hangs when VRDP server is enabled or disabled in runtime
      Shared folders: respect umask settings on Linux, OSX and Solaris hosts when creating files
      X11 guests: prevented setting the locale in vboxmouse, as this caused problems with Turkish locales (bug #3563)
      X11 guests: show the guest mouse pointer at the right position if the virtual desktop is larger than the guest resolution (bug #2306)
      Linux additions: fixed typo when detecting Xorg 1.6 (bug #3555)
      Solaris guests: added xpg4/xcu4 dependency to the guest additions installer (bug #3524)
      Windows guests: bind the VBoxMouse.sys filter driver to the correct guest pointing device (bug #1324)
      Windows hosts: fixed BSOD when starting a VM with enabled host interface (bug #3414)
      Linux hosts: do proper reference counting to prevent unloading the vboxnetflt module as long as this code is in use (bug #3104)
      Linux hosts: do not leave zombies of VBoxSysInfo.sh (bug #3586)
      Linux installers: fixes for Slackware, Arch Linux and Linux from Scratch systems
      Windows installers: combined installer executable which contains both (32- and 64-bit) architectures.
      VBoxManage: less cryptic command-line error messages
      VBoxManage list vms commands now default to compact format
      VBoxManage controlvm dvdattach did not work if the image was attached before
      VBoxManage: allow creation of all supported disk image variants
      VBoxManage showvminfo: don’t spam the release log if the additions don’t support statistics information (bug #3457)
      VBoxManage: big command line processing cleanup, the legacy single-dash options are deprecated and will be removed in the next major release, so switch to the new options now
      Hard disks: improved immutable disk support to auto-reset diff file at VM startup (related to bug #2772)
      GUI: enable the audio adapter by default for new VMs
      GUI: warn if VT-x/AMD-V is not operational when starting a 64-bit guest
      GUI: deactivate 64-bit guest suppo
rt when the host CPU does not support VT-x/AMD-V
      GUI: removed floppy icon from the status bar
      GUI: show build revision in about dialog
      GUI: fixed sticky status bar text
      GUI: improved error dialogs
      GUI: fail with an appropriate error message when trying to boot a read-only disk image (bug #1745)
      GUI/Mac OS X: fixed disabled close button
      GUI/Windows: re-enabled support for copy and paste (Windows hosts 2.0 regression; bug #2065)
      3D support: added OpenGL select/feedback support (bug #2920)
      3D support: close OpenGL subsystem for terminated guest applications (bug #3243)
      3D support: fixed VM hangs when starting guests with 3D acceleration enabled (bug #3437)
      PXE: fixed boot hangs when hardware virtualization is used (bug #2536)
      LsiLogic: fixed problems with Solaris guests

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