VirtualBox is an x86 virtualization software package, originally created by German software company innotek, now developed by Sun Microsystems as part of its Sun xVM virtualization platform. It is installed on an existing host operating system; within this application, additional operating systems, each known as a Guest OS, can be loaded and run, each with its own virtual environment.
Supported host operating systems include Linux, Mac OS X, OS/2 Warp, Windows XP or Vista, and Solaris, while supported guest operating systems include FreeBSD, Linux, OpenBSD, OS/2 Warp, Windows and Solaris.
NEW IN VERSION 2.0.4
•VMM: better error reporting for VT-x failures
•VMM: don’t overflow the release log with PATM messages (bug #1775)
•VMM: fixed save state restore in real mode (software virtualization only)
•GUI: work around a Qt bug on Mac OS X (bug #2321)
•GUI: properly install the Qt4 accessible plugin (bug #629)
•SATA: error message when starting a VM with a VMDK connected to a SATA port (bug #2182)
•SATA: fixed Guru mediation when booting OpenSolaris/64; most likely applies to other guests as well (bug #2292)
•Network: don’t crash when changing the adapter link state if no host driver is attached (bug #2333)
•VHD: fixed bug which prevents booting from VHD images bigger than 4GB (bug #2085)
•VRDP: fixed a repaint problem when the guest resolution was not equal to the client resolution
•Clipboard: don’t crash when host service initialization takes longer than expected (Linux hosts only; bug #2001)
•Windows hosts: VBoxSVC.exe crash (bug #2212)
•Windows hosts: VBoxSVC.exe memory leak due to a Windows WMI memory leak (Vista only) (bug #2242)
•Windows hosts: VBoxSVC.exe delays GUI startup
•Linux hosts: handle jiffies counter overflow (VM stuck after 300 seconds of host uptime; bug #2247)
•Solaris hosts: fixed host or guest side networking going stale while using host interface networking (bug #2474)
•Solaris hosts: added support for using unplumbed network interfaces and Crossbow Virtual Network Interfaces (VNICs) with host interface networking
•Solaris hosts: reworked threading model improves performance for host interface networking
•Windows additions: fixed crash when accessing deep directory structures in a shared folder
•Windows additions: improved shared folder name resolving (bug #1728)
•Windows additions: fixed Windows 2000 shutdown crash (bug #2254)
•Windows additions: fixed error code for MoveFile() if the target exists (bug #2350)
•Linux additions: fixed seek() for files bigger than 2GB (bug #2379)
•Linux additions: support Ubuntu 8.10
•Linux additions: clipboard fixes (bug #2015)
•Web services: improved documentation and fixed example (bug #1642)
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