I have a prohibited symbol on start up
, I do not have a keyboard connected. How am I going to hit controlR to bring up recovery? Any recommendations would be appreciated!
iMac Line (2012 and Later)
Get and use an inexpensive USB keyboard. It doesn't have to be an Apple keyboard, most any USB generic or pc keyboard will work for startup key commands.
Also have a look at > If your Mac doesn't start up all the way - Apple Support