Insert the microSD in the SD adaptor and insert it into the SD
slot on your Mac. You will get a popup warning saying
The disk you
inserted was not readable by this computer. Click Ignore.
Use diskutil to find the device name. Look for the 1GB disk with 4 Linux partitions. If you missed the instructions above and clicked Eject instead, it will not be listed here.
1 2 3 4 5 6 7 8 9 10 11 12 13 14
In my case this identifies the device as
/dev/disk0. Unmount the disk.
Copy the ROM image to the SD as follows:
Be patient, this takes a while… like 6 and a half minutes in my case. Perhaps you would like to amuse youself by looking at pictures of cats?