Bitlocker loop - Windows 11 VM from local disk

Discussions about using Windows guests in VirtualBox.
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Ra0
Posts: 15
Joined: 23. Jul 2007, 13:57

Bitlocker loop - Windows 11 VM from local disk

Post by Ra0 »

Hello,

I am running a dual boot machine, with Windows 11 and Ubuntu.
I am working most of the time on Ubuntu, only need W11 every now and then.

My W11 installation is protected by Bitlocker + my HW TPM to prevent from being asked the Bitlocker key on each reboot.

I would like to run this local W11 installation in a VM, when I am working in Linux.
I created a VMDK file to have access to my hard drive.
When I start my VM, it asks for Bitlocker key. I enter the key manually. But the system reboots and asks again for BL key. And so on. At some point, after I provided the BL key, it enters into repair mode. But whatever my choice, I am asked for BL key again and again.
(note that, by chance, whatever the repair mode is doing on my W11 installation, it is still working fine when I boot on it, when starting my machine)

I was thinking of relying on TPM to provide automatically the answer for BL.
So, I set my VM with TPM=Host, with the expectation that TPM passthrough will fix things. It does not work.

Maybe I should change to TPM=2.0 but I am not sure how to set a value to this vTPM.
And would it help, anyhow ?

Any idea how I could fix this ?
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