Vista 64bit Host + VDI on USB HDD -> BUG?

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Vaughn
Posts: 2
Joined: 9. Jan 2009, 12:38

Vista 64bit Host + VDI on USB HDD -> BUG?

Post by Vaughn »

Hi,

I seem to have quite a special Problem:

I'm using a WinXP Prof. SP2 32bit Guest on several Hosts. Therefore the VDI file is located on an USB drive.

So far I never had a problem with this setup, until I upgraded all my host to VirtualBox 2.1.

On my Ubuntu 8.10 host and a WinXP 32bit host everything is still fine and works perfectly.

BUT: On my Windows Vista Ultimate 64bit SP1 host I now always get a BlueScreen at the end of the boot-process of WinXP saying: "unmountable_boot_volume"

I tried a lot to solve the problem. I found that when I transfer the VDI-file to the internal HDD of my Vista-maschine it works again perfectly.
Further when I ran a Ubuntu Live CD in the VM it coudn't acces the hdd as well, so the guest OS doesn't seem to be the problem)


So it seems to be this combination:
Vista 64bit? (I don't have a 32bit Vista to test)
+ VDI-file on USB-drive
--> no access to the virtual drive --> WinXP-BlueScreen


Can somebody confirm this? What can I do to fix this? Or is it a bug in the 64bit Version of the new VirtualBox 2.1??

Thanks
Sasquatch
Volunteer
Posts: 17798
Joined: 17. Mar 2008, 13:41
Primary OS: Debian other
VBox Version: VirtualBox+Oracle ExtPack
Guest OSses: Windows XP, Windows 7, Linux
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Post by Sasquatch »

I think that the NTFS privileges are a problem. With XP, you are an Admin by default and Linux doesn't support the ACL on NTFS. Check if your user account has read _and_ write permissions on the file(s).
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Vaughn
Posts: 2
Joined: 9. Jan 2009, 12:38

Post by Vaughn »

Thanks for the reply.

I'm not sure if I understand correctly were you are going.

I can access the VM with virtualbox 2.1 without any trouble in my Ubuntu 8.10 oder WinXP 32bit host.

And with the old version 2.0.6 of virtualbox I also never had a problem with Vista 64bit as host system.

But when I upgraded to virtualbox 2.1 I ended up with the BlueScreen problem.
And copying the VDI-file from USB-drive to internal drive fixed the problem as well. So it doesn't seem to be a problem of the guest OS rather than that VirtualBox 2.1! on Vista 64 has a problem accesing VDI-files on an USB-drive! .

So maybe somebody using Vista 64bit and might test accesing a VDI-file on an USB-drive to verify my problem?

thanks
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