I'm happily running Snow Leopard on my MacBook Pro (circa 2007,
"MacBookPro3,1"), and I'm not quite willing to take the plunge and install
Lion on top of it. That said, I'd like to play with Lion. Rather than
inflict it on my wife's laptop, I thought I'd try installing it in a VM,
since the EULA now explicitly allows it. (It used to be that only OS X
server allowed virtualization.)
I tried to make sure I was booting Snow Leopard with a 64-bit kernel by
adding arch=x86_64 to the Kernel Flags section of
/Library/Preferences/SystemConfiguration/com.apple.Boot.plist, though I'm
not sure how to check if it actually booted a 64-bit kernel. I boot with
-v, so I saw it say something about 64-bit mode being activated, but
Activity Monitor.app shows me the kernel_task process as being an "Intel"
process rather than "Intel (64-bit)" so I'm just not sure.
I dug into the Lion installer and found the InstallESD.dmg and used Disk
Utility.app to convert it to a .cdr for use by the VM. I installed the
latest version of VirtualBox, 4.0.12, and set up a VM with the defaults for
"Mac OS X Server (64-bit)". I set the InstallESD.cdr as the CD in the
virtual CD drive and booted the VM. After some seemingly random window
resizing, this printed to the VM console:
efiboot loaded from device:
Acpi(PNP0A03,0)/Pci(1|1)/Ata(Primary,Master)/CDROM(Entry0)
boot file path: \System\Library\CoreServices\boot.efi
..
***********************************************************
This version of Mac OS X is not supported on this platform!
***********************************************************
Reason:
It just hangs there for a while, then reboots. No reason is ever given
after the teasingly uninformative "Reason:" prompt.
Has anyone succeeded in installing/running Lion under VirtualBox? Does
anyone know what I need to do to get this working? Is the installer looking
for some Mac hardware telltale that VirtualBox doesn't support? I've
successfully installed 64-bit Win7 in a VirtualBox VM, so I don't think
it's a 64-bit problem even if I'm not sure if I got Snow Leopard to boot a
64-bit kernel.
Help?
--Greg
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