#8903 closed defect (fixed)

VM won't start if VT-x enabled (OSX Lion)

VM hangs on a black screen, never gets to the "bios" screen. Disabling acceleration allows the VM to boot.

VBox.log (76.2 KB ) - added by Geoffrey Kruse 13 years ago.: this VM was suspended at start but exhibits the same issue

Download all attachments as: .zip

Reverting to 4.06 solves the problem.

Could you attach a VBox.log file for such a VM session?

FYI, we did several tests and so far were not able to reproduce your problem.

priority:	blocker → major

Oh, are you running Lion by any chance?

Attachment:	VBox.log added

this VM was suspended at start but exhibits the same issue

Yes this is Lion build 11A459e

Summary:	4.08 VM won't start if VT-x enabled (OSX) → VM won't start if VT-x enabled (OSX Lion)

In that case this is expected as Lion is not yet supported.

… watching.

Disabling VT-x will cause DP4 (Update 1) to completely lock up.

Processor 2.7 GHz Intel Core i7 Memory 8 GB 1067 MHz DDR3 Software Mac OS X Lion 10.7 (11A494a)

VT-x with Lion should work fine with VBox 4.0.10 which was just released.

Perfect! Works marvelously!

Thanks for the feedback! Note that there are still issues for the non-VT-x mode but on OSX you should never need to run a VM without VT-x.

Resolution:	→ fixed
Status:	new → closed

Should be fixed in 4.0.12 and 4.1.0.

Note: See TracTickets for help on using tickets.