problem in mounting vdisk in unraid

[TEKI]

I have Xpenology VM and I would like to mount it's vdisk in Unraid, there is only one vdisk.

I follow SpaceInvader One guide but fail (it can successfully mount windows VM vdisk)

 

the main problem, Unraid can identify the vdisk but not able to read it's content (cannot read partition information), below is the result of error. what should to read the content?

 

root@Tower:~# modprobe nbd max_part=8
root@Tower:~# qemu-nbd --format=raw --connect=/dev/nbd0 /mnt/user/domains/DS918/vdisk2.img
root@Tower:~# fdisk /dev/nbd0 -l
Disk /dev/nbd0: 3.59 GiB, 3851354112 bytes, 7522176 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

root@Tower:~# mount /dev/nbd0 /mnt/user/vdiskmount/
mount: /mnt/user/vdiskmount: wrong fs type, bad option, bad superblock on /dev/nbd0, missing codepage or helper program, or other error.
       dmesg(1) may have more information after failed mount system call.