. . . . . . . 9 2.7.3 VirtualBox Manager Tools . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.7.4 Help Viewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.7.5 About vboximg-mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327 vi Contents 10 Advanced Topics 331 10.1 Automated Guest Logins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409 13.5.1 Certain Oracle Solaris 10 Releases May Take a Long Time to Boot with SMP . . . . . . . . . . . . . . . . . . . . . . . . . .

Version 4.2.10 c⃝ 2004-2013 Oracle Corporation http://www.virtualbox.org Contents 1 First steps 10 1.1 Why is virtualization useful? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1 . . . 177 9.24.3 Mac OS X: starting the autostart service via launchd . . . . . . . . . . . 178 10 Technical background 179 10.1 Where VirtualBox stores its files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 12.5.1 Older Solaris 10 releases hang in 64-bit mode . . . . . . . . . . . . . . 200 12.6 Windows hosts . . . . . . . . .

file format / RTIsoMaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 7 Contents 10 Technical Background 265 10.1 Where Oracle VM VirtualBox Stores its Files . . . . . . . . . . . . . . . . . . . . 289 12.5.1 Older Oracle Solaris 10 Releases Crash in 64-bit Mode . . . . . . . . . . 289 8 Contents 12.5.2 Certain Oracle Solaris 10 Releases May Take a Long Time to Boot with SMP . Contiguous Memory . . . . . . . . . . . 293 12.9.2 VM Aborts With Out of Memory Errors on Oracle Solaris 10 Hosts . . . 294 13 Security Guide 295 13.1 General Security Principles . . . . . . . . . . . . .

. . . 215 9.31.4 Decrypting encrypted images . . . . . . . . . . . . . . . . . . . . . . . . 216 10 Technical background 217 10.1 Where VirtualBox stores its files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 12.5.1 Older Solaris 10 releases crash in 64-bit mode . . . . . . . . . . . . . . 239 12.5.2 Solaris 8 5/01 and earlier may contiguous memory . . . . . . . . . . . . 244 12.9.2 VM aborts with out of memory errors on Solaris 10 hosts . . . . . . . . 244 13 Security guide 246 13.1 General Security Principles . . . . . . . .

. 221 9.49.3 logon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 10 Enumerations (enums) 223 10.1 AccessMode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 10.5 CPUPropertyType . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 10 Contents 10.6 ClipboardMode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . making sure they do not conflict with each other or whatever the host computer is doing otherwise. On top of the hypervisor, additional internal modules provide extra functionality. For example, the RDP server

Version 4.2.8 c⃝ 2004-2013 Oracle Corporation http://www.virtualbox.org Contents 1 First steps 10 1.1 Why is virtualization useful? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1 . . . 178 9.24.3 Mac OS X: starting the autostart service via launchd . . . . . . . . . . . 179 10 Technical background 180 10.1 Where VirtualBox stores its files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 12.5.1 Older Solaris 10 releases hang in 64-bit mode . . . . . . . . . . . . . . 201 12.6 Windows hosts . . . . . . . . .

. . 232 9.34.2 Security considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 10 Technical background 234 10.1 Where VirtualBox stores its files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 12.5.1 Older Solaris 10 releases crash in 64-bit mode . . . . . . . . . . . . . . 257 12.5.2 Certain Solaris 10 releases may take long to boot with SMP . . . . . . . 258 memory . . . . . . . . . . . . 262 8 Contents 12.9.2 VM aborts with out of memory errors on Solaris 10 hosts . . . . . . . . 262 13 Security guide 264 13.1 General Security Principles . . . . . . . .

. . 232 9.34.2 Security considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 10 Technical background 234 10.1 Where VirtualBox stores its files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 12.5.1 Older Solaris 10 releases crash in 64-bit mode . . . . . . . . . . . . . . 257 12.5.2 Certain Solaris 10 releases may take long to boot with SMP . . . . . . . 258 memory . . . . . . . . . . . . 262 8 Contents 12.9.2 VM aborts with out of memory errors on Solaris 10 hosts . . . . . . . . 262 13 Security guide 264 13.1 General Security Principles . . . . . . . .

. . 232 9.34.2 Security considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 10 Technical background 234 10.1 Where VirtualBox stores its files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 12.5.1 Older Solaris 10 releases crash in 64-bit mode . . . . . . . . . . . . . . 257 12.5.2 Certain Solaris 10 releases may take long to boot with SMP . . . . . . . 258 memory . . . . . . . . . . . . 262 8 Contents 12.9.2 VM aborts with out of memory errors on Solaris 10 hosts . . . . . . . . 262 13 Security guide 264 13.1 General Security Principles . . . . . . . .

. . 232 9.34.2 Security considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 10 Technical background 234 10.1 Where VirtualBox stores its files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257 12.5.1 Older Solaris 10 releases crash in 64-bit mode . . . . . . . . . . . . . . 257 12.5.2 Certain Solaris 10 releases may take long to boot with SMP . . . . . . . 258 memory . . . . . . . . . . . . 262 8 Contents 12.9.2 VM aborts with out of memory errors on Solaris 10 hosts . . . . . . . . 262 13 Security guide 264 13.1 General Security Principles . . . . . . . .