I copied the RetroPie image (2.6 GB) to a microSD card by running the following command in
sudo dd bs=1m if=retropie-v3.6-rpi2_rpi3.img of=/dev/disk4
with the result
2600000000 bytes transferred in 2090.362756 secs (1243803 bytes/sec)
So it took 2090 seconds (~35 minutes).
I have two questions:
- Is that a reasonable amount of time to perform that operation based on the technical info below? The card is advertised to have "up to 40 MB/s write" but the operation was only taking place at ~1.2 MB/s.
- Is there a more efficient way to
ddthe image to my card so that the transfer speed is much higher?
MacBook Pro (Mid 2014), OS X 10.11.4
2.5 GHz Intel Core i7
16 GB 1600 MHz DDR3