Have got a USB stick set up to boot for ZCM imaging, all we do is put down a single image onto a sata drive on the machine and a couple of addon images

Once the imaging is done the USB stick that we boot from is wiped

We're only doing the equivalent of img -r -p baseimage.zmg
as well as a couple of addon images

the USB stick is seen as sdb by linux and the internal drive is sda

is there any reason that ZCM would see fit to wipe my USB stick, but put no data or even partitions on it, i'm not sure if it's killed the partition or just the partition table