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(In reply to Ulhas Surse from comment #0)
> qemu-kvm: -drive file=787d5623-3c7d-470c-8015-17cdaf3f62fa,snapshot=on,if=virtio:
> could not open disk image 787d5623-3c7d-470c-8015-17cdaf3f62fa: No such file
> or directory 

This isn't really a libguestfs problem.

It likely happens because the backing file isn't present.  You can try
doing 'qemu-img info' on that path.

There's a big thread on this subject here:

  https://www.redhat.com/archives/libguestfs/2014-January/thread.html#00087

See especially Federico's reply:

  https://www.redhat.com/archives/libguestfs/2014-January/msg00153.html

See also:

  https://bugzilla.redhat.com/show_bug.cgi?id=1053684

The current bug may be a dupe of bug 1053684.

Hello,  Ulhas Surse

Could you help to try the steps of Comment 3, thanks