BootCamp into VirtualBox

[wazdra]

Hello !

I have (surprisingly easily) managed to boot into my BootCamp partition (Windows 10 64bit) inside VirtualBox, on my MacOS system.
However, this is not a straightforward setup : since I still expect to use this partition using bootcamp, I'd rather avoid installing guest additions on Win10.
And, there is only one thing I need from GA : improve the resolution of guest window.
Should I try to change the resolution without GA, or should I find a way to install GA such that it doesn't create issues when booting directly through BootCamp ?

Waz

[socratis]

I have (surprisingly easily) managed to boot into my BootCamp partition (Windows 10 64bit) inside VirtualBox, on my MacOS system.

Could you share the details please? It would be useful to get a new, fresh look at this age-old problem...

I'd rather avoid installing guest additions on Win10.

There is a single only reason to do that; the mouse driver. More on that below...

And, there is only one thing I need from GA : improve the resolution of guest window.

And that's how they get you!

Should I try to change the resolution without GA

Who's stopping you?

should I find a way to install GA such that it doesn't create issues when booting directly through BootCamp ?

As mentioned there's an issue with the "VBoxMouse.sys" and you won't believe how old ticket #1633: Windows XP cannot boot natively after installation of Guest Additions (BSOD during boot) is.

It's from 2008-05-29 06:19:47 UTC, that's 11 1/2 (ELEVEN AND A HALF) years old!

I don't have a Bootcamp setup, but I do have an external Win10-64 disk which I 1) boot my MBPr, 2) use it with the rawdisk option. I too have the same issue as ticket #1633. There is a way to get around it and if I remember correctly is to not allow Windows updates while in native mode, only do Win10 updates while in a VM. Could be wrong, it's been years since I last tried it...

[wazdra]

Could you share the details please? It would be useful to get a new, fresh look at this age-old problem...

So, I have found infos around, but basically, I have created a raw vmdk for both my BootCamp partition and my EFI partition with

Code: Select all

VBoxManage internalcommands createrawvmdk -rawdisk /dev/disk0 -filename win10raw.vmdk -partitions 1,3

(with privileges)
Then, I plugged it into a brand new virtual machine, set up for Win10. (For this to work, disable SIP, if you haven't already)
The important settings are : EFI enabled, IDE Controller in ICH6 mode.

Should I try to change the resolution without GA

Who's stopping you?

My lack of knowledge... Do you, by any chance, have any idea on that matter ?

As mentioned there's an issue with the "VBoxMouse.sys" and you won't believe how old ticket [...] is.

It's from 2008-05-29 06:19:47 UTC, that's 11 1/2 (ELEVEN AND A HALF) years old!

I don't have a Bootcamp setup, but I do have an external Win10-64 disk which I 1) boot my MBPr, 2) use it with the rawdisk option. I too have the same issue as ticket #1633. There is a way to get around it and if I remember correctly is to not allow Windows updates while in native mode, only do Win10 updates while in a VM. Could be wrong, it's been years since I last tried it...

Ok, so I definitely won't install GA... Regarding the 11 years old ticket, I guess no one wants to go deep into windows system, wonder why

[wazdra]

Ok, so I managed to change the resolution. My problem was that I was trying to use

Code: Select all

setextradata CustomVideoMode

while it's actually the VBoxInternal2/EfiGraphicsResolution that I needed to change (or maybe both ?)

[socratis]

while it's actually the VBoxInternal2/EfiGraphicsResolution that I needed to change (or maybe both ?)

Of course! I should have mentioned/thought of that...

If you're using EFI for boot, the only way to change the resolution of a VM that doesn't have the GAs installed is with the "VBoxInternal2/EfiGraphicsResolution" extra data. My "MBP-Win10-Raw" VM has that option too, even though I have the GAs installed.

No you don't need both options, the "CustomVideoMode" one doesn't have any effect on an EFI-booting VM.

I have created a raw vmdk for both my BootCamp partition and my EFI partition ... disable SIP ... IDE Controller in ICH6 mode

Thank you for the "recipe". However I don't think you need the IDE controller in ICH6 mode. I believe that a good old SATA would suffice.