Friday, May 27, 2016

VirtualBox 4.2.18 Build 88780 Final

VirtualBox is a eral-purpose full virtualizer for hardware. Targeted at server, desktop and embedded use, it is now the only professional quality virtualization solution that is also Open Source
Software. VirtualBox is a powerful virtualization product for enterprise as well as home use. VirtualBox provides are useful for several scenarios: Running multiple operating systems simultaneously. VirtualBox allows you to run more than one operating system at a time.

This way, you can run software written for one operating system on another (for example, software on Linux or a Mac) without having to reboot to use it. Since you can configure what kinds of “virtual” hardware should be presented to ch such operating system, you can install an old operating system such as DOS or OS/2 even if your rl computer’s hardware is no longer supported by that operating system.

Software vendors can use virtual machines to ship entire software configurations. For example, installing a complete mail server solution on a rl machine can be a tedious task. With VirtualBox, such a complex setup (then often called an “appliance”) can be packed into a virtual machine. Installing and running a mail server becomes as sy as importing such an appliance into VirtualBox.

Testing and disaster recovery. Once installed, a virtual machine and its virtual hard s can be considered a “container” that can be arbitrarily frozen, woken up, copied, backed up, and transported between hosts. On top of that, with the use of another VirtualBox fture called “snapshots”, one can save a particular state of a virtual machine and revert back to that state, if necessary. This way, one can freely experiment with a computing environment. If something goes wrong (e.g. after installing misbehaving software or infecting the guest with a virus), one can sily switch back to a previous snapshot and avoid the need of frequent backups and restores. Any of snapshots can be crted, allowing you to travel back and forward in virtual machine time. You can delete snapshots while a VM is running to reclaim space.

Infrastructure consolidation. Virtualization can significantly reduce hardware and electricity costs. Most of the time, computers today only use a fraction of their potential power and run with low average system loads. A lot of hardware resources as well as electricity is thereby wasted. So, instd of running many such physical computers that are only partially used, one can pack many virtual machines onto a few powerful hosts and balance the loads between them.

Supported OS: XP, Server 2003, Server 2008, 7, Server 2012, 8 (32-bit and 64-bit).
Mac OS X hosts: 10.6 (Snow Leopard, 32-bit and 64-bit), 10.7 (Lion, 32-bit and 64-bit), 10.8 (Mountain Lion, 64-bit).
Linux hosts (32-bit and 64-bit): Ubuntu 8.04 (“Hardy Heron”), 8.10 (“Intrepid Ibex”), 9.04 (“Jaunty Jackalope”), 9.10 (“Karmic Koala”), 10.04 (“Lucid Lynx”), 10.10 (“Maverick Meerkat), 11.04 (“Natty Narwhal”), 11.10 (“Oneiric Oncelot”), 12.04 (“Precise Pangolin”), Debian GNU/Linux 5.0 (“lenny”) and 6.0 (“squeeze”), Enterprise Linux 4 and 5, Linux 6.

Changes in VirtualBox 4.2.18 (relsed 2013-09-06):

– VMM: properly handle NMIs on Linux hosts with X2APIC enabled
– VMM: fixed potential crashes with 64-bit guests on 32-bit hosts (bug #11979)
– GUI / smless: properly handle mouse wheel scroll events
– GUI, VBoxManage: when unregistering a VM, also unregister the hard s which are used exclusively (bug #10311)
– GUI: prevent crashes under certain conditions on X11 hosts
– 3D: multiscreen fixes (incorrect mouse position, flickers)
– 3D Support: several fixes for the WDDM driver (multiscreen, smless)
– Snapshots: made live snapshots work again (bug #9255)
– Teleportation: made it work again (bug #9455)
– VBoxManage: on snapshot take, –pause is default and –live is for doing live snapshots
– VBoxSVC: don’t crash on systems with many VLAN interfaces (Solaris hosts only)
– Network: after the host resumes from suspend, disconnect and reconnect the virtual network cables to force renewing the DHCP lses for the guests. So far only Mac OS X hosts and hosts (bug #10063).
– NAT: on name server changes force a reconnect of the virtual network cable to notify the guest (Mac OS X hosts only)
– Mac OS X installer: keep previously installed Extension Packs on VirtualBox upgrade
– Linux hosts / guests: Linux 3.11 fixes (bug #12001)
– Solaris hosts: fixed a potential kernel panic caused due to unexpected preemption due to logging.
– hosts: fixed an issue with USB2 devices being inaccessible when plugged into USB3 ports.
– Linux Additions: added PCI device identifier to vbox.ko fixing DRI initialization under certain conditions (bug #11957)
– Linux Additions: fixed udev detection in the init script with Linux 3.x kernels

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