Windows 10: Strange Error mounting an iso on an external drive in Hyper-V

Discus and support Strange Error mounting an iso on an external drive in Hyper-V in Windows 10 Virtualization to solve the problem; I got this rather odd error message when trying to mount an iso from an external drive using Hyper-V. The external drive is formatted as NTFS, so... Discussion in 'Windows 10 Virtualization' started by cereberus, Oct 15, 2016.

  1. cereberus Win User

    Strange Error mounting an iso on an external drive in Hyper-V


    I got this rather odd error message when trying to mount an iso from an external drive using Hyper-V.

    The external drive is formatted as NTFS, so the second part does not apply.

    The iso does mount if I copy it to an "internal" drive in Hyper-V (C drive in my case).

    It also mounts from external drive using a 3rd party tool (virtual clonedrive).

    Not a big deal as easy enough to get round but I am curios to now if this is a bug, or if it is the way an external drive is interfaced somehow?


    Strange Error mounting an iso on an external drive in Hyper-V [​IMG]


    :)
     
    cereberus, Oct 15, 2016
    #1

  2. Windows 10 1709 - iso will no longer mount from exFAT formatted drives

    Still looking for a fix.

    iso images will mount from internal SSD (NTFS)

    iso images will mount from external HHD (NTFS)

    iso images will mount from flash drives (NTFS)

    iso images will not mount from any external device (exFAT)

    I store many iso images on my micro SD and external drives (exFAT), and now I can only mount these files if I move them to a drive formatted in NTFS!
     
    mrjoecampbell, Oct 15, 2016
    #2
  3. Mounting ISO in hyper-v running VM - Win 10 build 1709

    Hi Nick,

    Thank you for your advice.
     
    Igor Lishnevsky, Oct 15, 2016
    #3
  4. Kari Win User

    Strange Error mounting an iso on an external drive in Hyper-V

    I agree that the error message is strange or at least misleading, it should in my opinion be something like this:


    Strange Error mounting an iso on an external drive in Hyper-V [​IMG]
     
  5. cereberus Win User
    Yeah - odd part is 3rd party apps work fine so even that is not strictly accurate, and wonder why it cannot be done - obviously hyper-v opens isos without any issue if on internal drive?

    I guess we will never know as I doubt this would ever be a priority issue.
     
    cereberus, Oct 16, 2016
    #5
  6. Kari Win User
    Third party apps are of course OK, it's just that on a Hyper-V VM you cannot mount a disk image or VHD if it is not locally stored on the vm.

    Personally I don't see any issues in this: when I need to mount an ISO I mount it in VM settings as DVD, when I need a VHD I mount it as an additional disk.
     
  7. cereberus Win User
    As I said it is no big deal - it was just the confusing message I was commenting on really.

    It would have helped if the message said (for example)- "mount iso as dvd image in settings" which is a better solution than copying to an internal drive as it uses less space of course.

    I worked this solution out later but did not actually mention it.

    My point was you have work it out from a misleading message, as it was not immediately obvious what the issue was.
     
    cereberus, Oct 16, 2016
    #7
  8. Kari Win User

    Strange Error mounting an iso on an external drive in Hyper-V

    Very true. That message is most misleading.
     
    Kari, Apr 5, 2018
    #8
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Strange Error mounting an iso on an external drive in Hyper-V

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