Cloning SD boot disk

[todds]

So We've been using the Magic Lantern software 1.2.3 build on a Canon 5D Mk3 for several months.  The Software is on an SD card and it works great like this.  We recently got a second 5D Mk3 and have the same firmware on both cameras.  The SD boot disk for the Magic Lantern software works in both 5Ds, however, when I tried to create a second SD card to run Magic Lantern in both cameras at the same time the second SD card does not work at all.  The second SD was formatted in the camera and the file and folder structure were copiedfrom the working SD boot disk. 

The second SD card, does not boot the Magic Lantern software in either camera.  They are exactly the same as I can see-- same brand, mb/sec, size (16gig) with the exact same file and folder structure.  Initially, we  thought it was a bad card so we bought a couple more.  Same deal.  Only the original card seems to work.

Any ideas what might be the issue?

Thanks,
Todd

[Walter Schulz]

Not reading basic instructions?
Top of page -> User Guide -> Install Guide -> Installing Magic Lantern on other cards

[todds]

Maybe  not.  Thanks! all is well!