It sounds like maybe these disks have been partitioned in a format that only Windows understands. Can you tell me what the windows disk manager claims the partition table format to be?
If you still think that maybe there's a QEMU bug, please give more details: - host kernel version - qemu version - qemu command line - how were these qcow2 files created? - What version of qcow2 file does `qemu-img info` say they are? - What version of windows? (10?) - Can you name one of the third party disk managers so we can try to reproduce it? ** Changed in: qemu Status: New => Incomplete -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1872790 Title: empty qcow2 Status in QEMU: Incomplete Bug description: I plugged multiple qcow2 to a Windows guest. On the Windows disk manager all disks are listed perfectly, with their data, their real space, I even can explore all files on the Explorer, all cool On third party disk manager (all of them), I only have the C:\ HDD who act normally, all the other plugged qcow2 are seen as fully unallocated, so I can't manipulate them I want to move some partitions, create others, but on Windows disk manager I can't extend or create partition and on third party I didn't see the partitions at all Even guestfs doesn't recognize any partition table `libguestfs: error: inspect_os: /dev/sda: not a partitioned device` To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1872790/+subscriptions