I'd like to update my zgemma to the latest Woosh Build. Last time I upgraded none of my settings successfully backed up, so it was a pain restoring everything. This time I'm making sure I have a valid backup. I've tried three different USB sticks with formatted as FAT32 or ext4, and I get the same error. "tar: write error: Broken pipe". Also tried front and back USB sockets. What idiot mistake am I making?