The issues is /dev/md0 is not a physical device - but a logical device representing the RAID0 array as a file system. That is why it does not have a partition table.
Underlying that will be the physical devices /dev/hda, /dev/hdc, /dev/hde and /dev/hdg. These will have partition tables with /dev/md0 being mapped to use the first partition on each drive. As it is a RAID0 array all 4 drives will have identical data.
Thanks for the information. When I do a
..# df -aT
I don't see any /dev/hd* devices, only /dev/md0 and /dev/md1. If I want to copy the partition table of the /dev/hd* devices, how can I do that if they don't show up? Is there a command to let me see those devices? Can I just assume that the devices are as you named them: /dev/hda, /dev/hdc, /dev/hde and /dev/hdg?