Unable to perform windows 7 instalation on virtualdisk

[Ruy]

Hi there

I've just installed VB, created a new virtual disk and was trying to install windows 7 (home premium) from a DVD drive. Installation simply crashes after a few seconds. I'm on a mid 2010 macbokpro, with OS 10.6.8

Any idea what's wrong?

Thanks a lot

[mpack]

It looks like your Mac host has a 32bit kernel, and you are trying to assign too much RAM to the guest. Try assigning 2GB or less (my own WIn7-64 guest runs well with 1.5GB).

[Ruy]

I assigned just under 2 gb and it worked fine. Thanks again.

[Ruy]

Hi mpack, any ideia why the 32-bit kernel is being used? The processor is 64 bit, shouldn't Vb be able to use the 64 kernel?

[mpack]

It isn't VirtualBox that chooses a kernel, it's you! VirtualBox runs with whatever it finds.

I'm not a Mac user, but I believe the choice of 32bit vs 64bit is made at boot time (both are installed), presumably according to system defaults. I believe there's a keyboard override (something like function 6 4) to force 64bit, but you should google for that. No doubt there is also a way to change the boot time default.

[Ruy]

Thanks a lot again!! Didn't even know my computer was running on 32, while it could be on 64.

[GeneA]

I'm having the same problem (OS 10.6.8; Windows 7), but changing to 2 gigs didn't help. Here's what I see:


Failed to open a session for the virtual machine Windows 7 Professional.
Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: Console
Interface: IConsole {1968b7d3-e3bf-4ceb-99e0-cb7c913317bb}


VirtualBox 4.1.14 r77440 darwin.amd64 (Apr 12 2012 18:32:20) release log
00:00:04.494 Log opened 2012-05-16T23:25:49.304313000Z
00:00:04.494 OS Product: Darwin
00:00:04.494 OS Release: 10.8.0
00:00:04.494 OS Version: Darwin Kernel Version 10.8.0: Tue Jun 7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
00:00:04.495 DMI Product Name: MacBookPro8,1
00:00:04.496 DMI Product Version: 1.0
00:00:04.496 Host RAM: 4096MB RAM, available: 1530MB
00:00:04.496 Executable: /Applications/VirtualBox.app/Contents/MacOS/../Resources/VirtualBoxVM.app/Contents/MacOS/VirtualBoxVM
00:00:04.496 Process ID: 1981
00:00:04.496 Package type: DARWIN_64BITS_GENERIC
00:00:04.497 Installed Extension Packs:
00:00:04.497 None installed!
00:00:04.498 pdmR3LoadR0U: pszName="VMMR0.r0" rc=VERR_SUPLIB_WORLD_WRITABLE szErr="World writable: '/Applications'"
00:00:04.498 VMSetError: /Users/vbox/tinderbox/4.1-mac-rel/src/VBox/VMM/VMMR3/VM.cpp(591) int vmR3CreateU(UVM*, uint32_t, int (*)(VM*, void*), void*); rc=VERR_SUPLIB_WORLD_WRITABLE
00:00:04.498 VMSetError: Failed to load VMMR0.r0
00:00:04.498 ERROR [COM]: aRC=NS_ERROR_FAILURE (0x80004005) aIID={1968b7d3-e3bf-4ceb-99e0-cb7c913317bb} aComponent={Console} aText={Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE)}, preserve=false
00:00:04.505 Power up failed (vrc=VERR_SUPLIB_WORLD_WRITABLE, rc=NS_ERROR_FAILURE (0X80004005))

[Perryg]

@GeneA,

Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE).

Run the Repair Disk Permissions using DIsk Utility on your MAC host then it should work.

[mpack]

I'm having the same problem (OS 10.6.8; Windows 7), but changing to 2 gigs didn't help. Here's what I see:
...
VirtualBox 4.1.14 r77440 darwin.amd64 (Apr 12 2012 18:32:20) release log

You have a 64bit host kernel, so not the same problem.