Replace SD-card on armhf-Wandboard

[Christoph Pleger <Christoph.Pleger@cs.tu-dortmund.de>]

Hello,

I have here an armhf variant called wandboard (www.wandboard.org), installed 
with Debian 9, the boot device is an internal MicroSD-Card, and if I 
understood correctly, that is the only possible way to boot.  I now have the 
problem that reading or writing from/to the card give I/O errors, so the card 
must be replaced. So, I copied all files from the root partition - the other 
filesystems are on an external SATA disk - to another computer, that worked 
successfully with exception of one unimportant file which could not be read 
anymore. Then, on another Micro-SD I created a new file system with the same 
UUID as on the other card and copied all files to that location. But 
unfortunately, the wandboard does not want to boot with the new MicroSD. Does 
anybody have an idea what I can do to make the new card bootable?

Regards
  Christoph