I've been using unix commands of one kind or other for 30 years + and dd is the goto utility when copying disks. What else should we use if not dd? I have just tried two different thumb drives with unix distributions on them and both throw an error if you plug them in to the mac. Both drives also mount without incident on a debian user system The different format someone mentioned is called ufs or something similar Martin _______________________________________________ Blinux-list mailing list Blinux-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/blinux-list