Restore your SD Card (Mac)
/Plug the SD Card into your MAC
Go to Spotlight (the little magnifying glass on the top right of your MAC), type Terminal, and press Enter
Now the rest of the commands are done in the Terminal
Type:
sudo bash and press enter
Type in your password to get the # prompt
Type:
cd /raspberry-pi/backups and press enter (or wherever you placed the backup img file)
Type
df -h and look for your SD Card. My card is listed as /dev/disk1s1. Once you know which card is your SD Card type
diskutil unmount /dev/disk1s1 (or whatever your SD Card is listed as)
note: I am not a Mac user but I note the commands below reference /dev/rdisk1 – I am not sure if that is the correct name for the SD card (it might be… but it seems a little odd based upon the instructions in the line above this)
dd bs=1m if=/raspberry-pi/backups/issbove.img of=/dev/rdisk1 and press enter
your SD Card will now be restore the backup
Once the backup is complete type:
diskutil eject /dev/rdisk1 (change rdisk1 to whatever is appropriate for your SD card)
This part of the instructions taken from this original article.