I can't reproduce this issue anymore, I think it's because the user import has been taken care by cloud-init, which meant the failed caused by unmovable device/partition can't be reproduce in our current environment.
So I will try to create another usb sticker which has several partition and file systems, or maybe a non-mountable one to reproduce it, just not sure this is a valid case or not....
@Michael,
I can't reproduce this issue anymore, I think it's because the user import has been taken care by cloud-init, which meant the failed caused by unmovable device/partition can't be reproduce in our current environment.
So I will try to create another usb sticker which has several partition and file systems, or maybe a non-mountable one to reproduce it, just not sure this is a valid case or not....