from Windows 10 to Windows 11, another episode...

A

AdminBmq

Member
Aug 22, 2022
7
0
6
Hello,

This thread is a continuation of others threads on the same topic. Some succeed, some fail. I failed.

I have two Windows 10 VMs I wish to upgrade, one using a very costly and restricted licence I do not wish to pay again.

First I tried to create a Windows 11 virgin VM just to prove it was possible. It is.

Then, I placed the two CD with ISO (W11 and virtio-win ; the W11 creation proved I needed a slightly older version of virtio-win).
The disk needs to be GPT and not MBR. mbr2gpt was launched; the VM was closed then an EFI disk added, TPM v.2.0 set, BIOS set to OVMF (UEFI), CPU set to host.
I launched again and no way to make it boot. 'No boot device', classical error 0x7b and the automatic repairs repair nothing.

I search and I find that some people pass from SCSI disk to IDE disk and it is good for them. Actually yes, passing the same disk on IDE allow the system to find the boot and then I am on a W10, I launch the W11 setup and sloooowly I have a Windows 11 system slow but functional, it boots, reboots, etc.
I launch the virtio-win driver installer and then I try to pass the disk to SCSI and I cannot boot. Same problem.

I search and I find that some people were similarly blocked and along with the IDE disk added a secondary SCSI disk. They come back to the system, use Disk manager, so verify the drivers are present, then close the VM and pass from IDE to SCSI.
And I failed again.

I can't manage to understand why with an IDE disk proxmox can find the boot and with SCSI connection it cannot.
Driver? Maybe but the test with the secondary disk was supposed to handle this.

Has someone a process to pass MBR Windows 10 system disk on SCSI to GPT Windows 10/11 system disk on SCSI?
 
Thanks,
GPT is needed I think to get the UEFI, so the change mbr2gpt is required.
The SCSI driver is installed with the ISO CD with virtio-win while I am on the IDE Disk. It seems it loses the boot when passing from IDE to SCSI. The Boot Order is changed whenever I change the type of disk connection.
And I agree I need SCSI because IDE is way to slow for my users.

Nevertheless I'll test something other in january. Launch W10 as usual, launch the driver-installer from ISO and only then mbr2gpt, changes in the proxmox GUI and passing to IDE to get W11. Until now I launched the driver installer on the W11 on IDE. I do not know, anything now to make it work...
 
Apologies if I am over explaining but to be clearer than what I wrote, installing the SCSI driver from ISO is not sufficient, Windows has to use it. Hence the 1 GB disk. But if you’ve done that then your issue is probably something else.
 
Last edited:
  • Like
Reactions: Kingneutron
I tried this (boot of W11 on IDE with SCSI disk attached, went to disk manager without any problem: partition, format) , but I did it after trying other things that could have mix the results. As a late scientist, I have to reduce parameters in the experiment, so I shall make a special process including specifically this.
But I guess too there must be something else that escape me.

I tried SATA this morning without success but there again I should have made first a second sata disk and then check for drivers.

These are all good ideas to be processed very formally. Thanks and happy holidays for those lucky enough...
 
You must log in or register to reply here.
Top Bottom