153 10.1.1 Machines created by VirtualBox version 4.0 or later . . . . . . . . . . . 153 10.1.2 Machines created by VirtualBox versions before 4.0 . . . . . . . . . . . 154 10.1.3 Global configuration configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . 154 10.1.4 Summary of 4.0 configuration changes . . . . . . . . . . . . . . . . . . 155 10.1.5 VirtualBox XML files . . . . . . . . . . . (“Karmic Koala”), 10.04 (“Lucid Lynx”), 10.10 (“Maverick Meerkat). – Debian GNU/Linux 3.1 (“sarge”), 4.0 (“etch”), 5.0 (“lenny”) and 6.0 (“squeeze”) – Oracle Enterprise Linux 4 and 5 – Redhat Enterprise Linux

151 10.1.1 Machines created by VirtualBox version 4.0 or later . . . . . . . . . . . 151 10.1.2 Machines created by VirtualBox versions before 4.0 . . . . . . . . . . . 152 10.1.3 Global configuration configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . 152 10.1.4 Summary of 4.0 configuration changes . . . . . . . . . . . . . . . . . . 153 10.1.5 VirtualBox XML files . . . . . . . . . . . (“Karmic Koala”), 10.04 (“Lucid Lynx”), 10.10 (“Maverick Meerkat). – Debian GNU/Linux 3.1 (“sarge”), 4.0 (“etch”), 5.0 (“lenny”) and 6.0 (“squeeze”) – Oracle Enterprise Linux 4 and 5 – Redhat Enterprise Linux

152 10.1.1 Machines created by VirtualBox version 4.0 or later . . . . . . . . . . . 152 10.1.2 Machines created by VirtualBox versions before 4.0 . . . . . . . . . . . 153 10.1.3 Global configuration configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . 153 10.1.4 Summary of 4.0 configuration changes . . . . . . . . . . . . . . . . . . 154 10.1.5 VirtualBox XML files . . . . . . . . . . . (“Karmic Koala”), 10.04 (“Lucid Lynx”), 10.10 (“Maverick Meerkat). – Debian GNU/Linux 3.1 (“sarge”), 4.0 (“etch”), 5.0 (“lenny”) and 6.0 (“squeeze”) – Oracle Enterprise Linux 4 and 5, Oracle Linux 6 – Redhat

154 10.1.1 Machines created by VirtualBox version 4.0 or later . . . . . . . . . . . 154 10.1.2 Machines created by VirtualBox versions before 4.0 . . . . . . . . . . . 155 10.1.3 Global configuration configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . 155 10.1.4 Summary of 4.0 configuration changes . . . . . . . . . . . . . . . . . . 156 10.1.5 VirtualBox XML files . . . . . . . . . . . (“Karmic Koala”), 10.04 (“Lucid Lynx”), 10.10 (“Maverick Meerkat). – Debian GNU/Linux 3.1 (“sarge”), 4.0 (“etch”), 5.0 (“lenny”) and 6.0 (“squeeze”) – Oracle Enterprise Linux 4 and 5, Oracle Linux 6 – Redhat

154 10.1.1 Machines created by VirtualBox version 4.0 or later . . . . . . . . . . . 154 10.1.2 Machines created by VirtualBox versions before 4.0 . . . . . . . . . . . 155 10.1.3 Global configuration configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . 155 10.1.4 Summary of 4.0 configuration changes . . . . . . . . . . . . . . . . . . 156 10.1.5 VirtualBox XML files . . . . . . . . . . . (“Karmic Koala”), 10.04 (“Lucid Lynx”), 10.10 (“Maverick Meerkat). – Debian GNU/Linux 3.1 (“sarge”), 4.0 (“etch”), 5.0 (“lenny”) and 6.0 (“squeeze”) – Oracle Enterprise Linux 4 and 5, Oracle Linux 6 – Redhat

10.1.1 Machines created by VirtualBox version 4.0 or later . . . . . . . . . . . 148 5 Contents 10.1.2 Machines created by VirtualBox versions before 4.0 . . . . . . . . . . . 149 10.1.3 Global configuration configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . 149 10.1.4 Summary of 4.0 configuration changes . . . . . . . . . . . . . . . . . . 150 10.1.5 VirtualBox XML files . . . . . . . (“Jaunty Jackalope”), 9.10 (“Karmic Koala”), 10.04 (“Lucid Lynx”). – Debian GNU/Linux 3.1 (“sarge”), 4.0 (“etch”) and 5.0 (“lenny”) – Oracle Enterprise Linux 4 and 5 – Redhat Enterprise Linux 4 and 5 – Fedora

11 License information 283 12 Main API change log 284 12.1 Incompatible API changes with version 4.0 . . . . . . . . . . . . . . . . . . . . . 284 12.2 Incompatible API changes with version 3.2 . . function invoked by the API. As opposed to the callbacks that were used in the API before VirtualBox 4.0 however, events are now objects with an interface hierarchy. • Passive listeners are somewhat trickier exact reason and the changes you made to this machine will not be saved. Starting with VirtualBox 4.0, a “.vbox” extension of the settings file is recommended, but not enforced. (Previous versions always

202 10.1.1 Machines created by VirtualBox version 4.0 or later . . . . . . . . . . . 202 10.1.2 Machines created by VirtualBox versions before 4.0 . . . . . . . . . . . 203 10.1.3 Global configuration configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . 203 10.1.4 Summary of 4.0 configuration changes . . . . . . . . . . . . . . . . . . 204 10.1.5 VirtualBox XML files . . . . . . . . . . . Installation details, page 35 for details about the various installation methods. Starting with version 4.0, VirtualBox is split into several components. 1. The base package consists of all open-source components

165 10.1.1 Machines created by VirtualBox version 4.0 or later . . . . . . . . . . . 165 10.1.2 Machines created by VirtualBox versions before 4.0 . . . . . . . . . . . 166 10.1.3 Global configuration configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . 166 10.1.4 Summary of 4.0 configuration changes . . . . . . . . . . . . . . . . . . 167 10.1.5 VirtualBox XML files . . . . . . . . . . . (“Lucid Lynx”), 10.10 (“Maverick Meerkat), 11.04 (“Natty Narwhal”). – Debian GNU/Linux 3.1 (“sarge”), 4.0 (“etch”), 5.0 (“lenny”) and 6.0 (“squeeze”) – Oracle Enterprise Linux 4 and 5, Oracle Linux 6 – Redhat

161 10.1.1 Machines created by VirtualBox version 4.0 or later . . . . . . . . . . . 161 10.1.2 Machines created by VirtualBox versions before 4.0 . . . . . . . . . . . 162 10.1.3 Global configuration configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . 162 10.1.4 Summary of 4.0 configuration changes . . . . . . . . . . . . . . . . . . 163 10.1.5 VirtualBox XML files . . . . . . . . . . . (“Lucid Lynx”), 10.10 (“Maverick Meerkat), 11.04 (“Natty Narwhal”). – Debian GNU/Linux 3.1 (“sarge”), 4.0 (“etch”), 5.0 (“lenny”) and 6.0 (“squeeze”) – Oracle Enterprise Linux 4 and 5, Oracle Linux 6 – Redhat