Hi, The process of creating the microSD card requires copying the .img file to the card ... which involves writing about 2.9 GB. But ... not all method of connecting a microSD card to your computer are equal. On my Mac, I noticed that one "card reader" was letting me write about 1 MB/sec (one megabyte per second), but another (a double-ended device from Unirex (one end USB A male (aka plug), the other end micro USB male, with a slot for SD and a slot for microSD)) let me write at about 6 MB/sec! In other words, not all methods of writing to SD or microSD cards are created alike! If you have more than one device, time them! On my late 2008 Mac Pro laptop, with the faster device, it takes 8 minutes and 45 seconds to write the .img file to the microSD.
you can also monitor the copy status with tools like pv or pkill -usr1 dd (linux only) This helped me to stay patient
Good point, madxray ... I should have mentioned: I have my own version of 'dd' (called 'ddcopy') which reports progress as it goes. Example output: ... 2:05:31 #records = 11 read 44 MB; 44.00 MBs/sec; 6% done; 15 seconds left ... (the above is not an example from writing to a microSD card, as you can tell by the speed It's a command-line program. If anyone wants a copy (Linux or Mac, for free), drop me a line. sieler at allegro.com Stan
