id summary reporter owner description type status component version resolution keywords cc guest host 11066 OSX-Guest on VirtualBox typoworx "I installed OSX on a previous Version of Virtualbox 4.2 and was able to get it running using Original Install-CD using EFI-Mode in Virtualbox. Since upgrading to VirtualBox 4.2.0 which seems to have an upgraded/altered EFI-Interface (new Menu?) I cannot boot into OSX any more. Instead of booting EFI (either OSX-CD or existing OSX-System from VDI) I see the UEFI Helper-System coming up... Is there any info on this bug yet? I see some errors showing up shortly while the VirtualBox BIOS Screen is shown. Btw. I'm using the Windows-Binary (Windows PC)." defect closed other VirtualBox 4.2.0 fixed OSX Guest other other