I've just moved from a 2009 13" MBP to a 2015 12" rMB (1.3, 8GB, 512GB).
On starting VirtualBox, the laptop would restart. Did this a few times before I started Googling & found that this seems to be a known issue & the latest VirtualBox test builds will resolve it. Seems to have worked for me.
Related thread on VirtualBox forum
VirtualBox test builds page
Hope it helps someone out there
On starting VirtualBox, the laptop would restart. Did this a few times before I started Googling & found that this seems to be a known issue & the latest VirtualBox test builds will resolve it. Seems to have worked for me.
Related thread on VirtualBox forum
VirtualBox test builds page
Hope it helps someone out there