VirtualBox 4.1 Beta 2 is now available for testing

The second beta release of VirtualBox 4.1 is now available for download and testing. You can find binaries for your host platform at http://download.virtualbox.org/virtualbox/4.1.0_BETA2. This release contains several new features which may not be quite complete. Please do not use this on any production systems - it is only for early evaluation and testing.

VirtualBox 4.1 will be a new major release and includes the following new features.

  • Support for cloning virtual machines
  • Enhanced wizard for creating new virtual disks
  • A new wizard for copying virtual disks
  • Increased the guest memory limit for 64-bit hosts to 1TB
  • Experimental WDDM graphics driver for Windows guests
  • Modules and features in the guest additions now are represented as facilities to have a common interface for frontends.
  • A new networking mode (UDP tunnel) which will allow easy and transparent communication between guests running on different hosts
In addition to the new features, many bugs in the existing release have been fixed. Please see the VirtualBox 4.1 Beta 1 Announcement for a complete list.

Some notable fixes since Beta 1 include

  • VMM: fixed a Beta 1 regression which prevented certain guests from booting
  • VMM: better out-of-memory error reporting under certain circumstances
  • GUI: display CPU cap in the VM details page
  • Storage: introduced non-rotational flag for hard disks for optimizing the performance with modern guests (e.g. Windows 7 will not automatically defrag the disk)
  • Floppy: make unmounting a host floppy disk work
  • Solaris hosts: Host-only/Bridged networking fixes
  • Solaris guests: fixed automounting of shared folders
  • Linux installer: fixed compilation of the vboxpci module if DKMS is not installed
  • Windows Installer: fixed automated VBox Python API installation.
  • Experimental support for PCI passthrough (Linux hosts only)

    Please report any problems with the beta release at the VirtualBox Beta Forum. The development team is particularly interested in problems or regressions since the last release (4.0.10).



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    About

    Bob Netherton is a Principal Sales Consultant for the North American Commercial Hardware group, specializing in Solaris, Virtualization and Engineered Systems. Bob is also a contributing author of Solaris 10 Virtualization Essentials.

    This blog will contain information about all three, but primarily focused on topics for Solaris system administrators.

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