Copying existing Tiny6410 SD boot

Ryan Fernandez
I have a device tat is powered by a Tiny6410.  It is booting off the SD
card and it has three partitions:

FAT16
Linux
Linux

x86 boot sector
partition 1: ID=0x6, starthead 1, startsector 47, 198481 sectors
partition 2: ID=0x83, starthead 0, startsector 198528, 588816 sectors
partition 3: ID=0x83, starthead 0, startsector 787344, 2540256 sectors,
code offset 0x0

The card is unreadable in a windows machine.  IT just asks if I want to
format it, but in the FAT16 there's a folder called boot, and it has a file
called zImage_x3ro inside of it.

The second linux partition has the OS on it.  When I try to DD another SD
card to copy this over it does not work.  How do I go about making a copy
of the card?