Comment 11 for bug 1507894

I was able to reproduce this error in my local setup. And after debugging found that the "os.link()" python module here https://github.com/openstack/ironic/blob/master/ironic/drivers/modules/image_cache.py#L162 is causing this error. "os.link()" does not take paths if they are on different partitions. Tried using os.symlink() instead but does not work.