RAW USB boot, cannot find partitions

[fatunicorn]

Hello,

I dit the wrong decisions and bought a Surface Book.
The problem about it is, Linux support is not that good.
So I have Manjaro installed on a handy usb ssd, which I can boot on my desktop and my fat old HP Zbook.
On my Surface Book it works barely (network issues, and hiberantion problems).
So I thought I'll make a RAW partition and boot it inside a VM.

I can boot with efi enabled and it continues until I select the bootentry in grub.
After this it shows, it cannot find the partitions:

Screenshot of the Problem

Boot_Failure_VBOX.png (19.44 KiB) Viewed 637 times

I cannot input anything in this state, but the cursor is blinking.
I can boot in the Manjaro live installer and I can see those partitions, so where did they get lost?

Thanks in advance,
The Fat Unicorn

[scottgus1]

Are you sure you need EFI? If I recall correctly, using a USB drive set up via Raw Disk Access fakes the USB as a real drive so the non-EFI BIOS might be able to boot from it. Was the installed OS on the USB an EFI OS?

3D acceleration is on, and only 16MB video RAM. Slide that slider all the way up.

The log does not show the usual "Booting from" messages, but does not otherwise show any seize-up in the Virtualbox environment. Additionally, the screenshot shows a running and still active Virtualbox guest window with error messages coming from the installed OS, not from Virtualbox.

So far there is nothing wrong with Virtualbox's setup, aside from video RAM and possibly BIOS vs EFI. Pretend the OS is installed directly on a real PC, and troubleshoot this problem directly in the OS, using Manjaro's help channels.

[fatunicorn]

Well yes, the OS was installed via efi boot. I can try to add a bios partition to the gpt disk and boot from that.
I didn't mention, that I booted from the Manjaro iso because in it's grub there is an option to search efi entrys and boot from them.

I will try the bios boot and if it's not working I'll ask in the manjaro channels.

Thanks