Ce programme permet d’émuler un PC sous plusieurs OS. Il tourne sous Windows ou sous Linux. Il permet de faire tourner des machines virtuelles sous différents OS (Windows de tout type, Linux, FreeBSD OS/2 etc.), il est également open source et gratuit (pour les particuliers). Les solutions de virtualisation existante étant soit très cher pour le particulier soit incomplète au niveau du support des systèmes, VirtualBox propose une alternative à Vmware et VirtualPC et il s’en sort plus que bien, enfin une vraie alternative?
Les changements très nombreux sont les suivants:
As major new features, Version 1.5 adds:
• Seamless windows (see chapter 4.5, Seamless windows, page 53)
• Virtual serial ports (see chapter 3.7.9, Serial ports, page 44)
• Support for 64-bit Windows hosts (see chapter 1.3.1, Supported host operating systems, page 12)
• Intel PXE 2.1 network boot
• Guest Additions for IBM OS/2 Warp
In addition, the following items were fixed and/or added:
• GUI: sometimes two mouse cursors were visible when Windows guest additions became active
• GUI: added VT-x/AMD-V settings
• GUI: disable ’Show log…’ menu entry to prevent crash if VM list is empty
• GUI: the log window grabbed the keyboard
• GUI: fixed error handling if Linux host clipboard initialization fails
• GUI: pass the Pause key and the PrtScrn key to the guest (Linux hosts)
• GUI: increased maximum guest RAM to 2 GB (Windows host)
• GUI: improved rendering performance (Windows host)
• GUI: status lights for USB and shared folders
• GUI: properly respect the DISPLAY environment variable
• GUI: download Guest Additions from virtualbox.org in case they are not present locally
• VRDP: support for multimonitor configurations in Windows guests
• VRDP: support for MS RDP6 and MS RDP Mac clients
• VRDP: added support for WinConnect RDP client
• VRDP: performance improvements (source: emu-france.com)
• VRDP: fixed sporadic client disconnects
• VBoxManage: never delete existing target during clonevdi
• VBoxManage: properly print the size of currently used hard disks
• VMM: fixed Xandros Desktop 4.1 hang
• VMM: fixed VT-x/AMD-V hang with newer versions of gcc (Linux hosts)
• VMM: improved stability of VT-x
• VMM: check for disabled AMD-V when detecting support
• VMM: fixed AMD-V issue when running OS/2 guests
• VMM: fixed application startup regressions (e.g. VideoReDo)
• VMM: fixed regression that broke disk access in OS/2 and OpenBSD guests (pos-
sibly much more)
• VMM: fixed crashes if memory allocation failed (Linux)
• VMM: fixed enabling of Local APIC on AMD hosts (fixed Ubuntu Feisty installation kernel hang during boot)
• VMM: fixed XFree86 4.3 (Debian/Sarge) segfaults when switching to text mode
• VMM: refuse to start when KVM is active (Linux Host)
• VMM: fixed bootup hangs with ReactOS
• VMM: fixed out-of-memory errors under certain environments with enough appropriate memory available
• API: fixed occassional crashes of the VBoxSVC server during VM shutdown (Linux host)
• API: some components were not notified when mounting a CD/DVD
• VMDK: improve geometry compatibility with existing VDMK images
• IDE/Floppy: optionally make non-available host device non-fatal
• IDE: improve emulation accuracy of the IRQ line between master and slave drive
• IDE: guest could freeze when unmounting the CD/DVD drive
• VGA: several text mode fixes in particular with Windows DOS boxes
• USB: fixed some issues with Windows hosts
• USB: fixed race condition between udev and USB filters (Linux host)
• Shared Folders: reversed network provider order to increase mapping performance (Windows guest)
• Shared Folders: browsable from Windows Explorer (Windows guests)
• Shared Folders: stability fixes (Windows guest)
• Shared Folders: case sensitivity fixes (Windows guest and Linux host)
• Audio: fall back to the NULL audio driver if no voice could be opened
• NAT: fixed crash
• Guest Additions: reworked the shared clipboard for Linux hosts and guests based on user feedback about problems with individual applications
• Guest Additions: don’t allow to disable mouse pointer integration for Linux guests as an Xorg hardware mouse cursor cannot be turned into a software mouse cursor
• Guest Additions: Linux guests shipping Xorg 1.3 (e.g. Fedora 7, Ubuntu Gutsy) are now supported
• Guest Additions: added DirectDraw support to the Windows display driver
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