Reply To: USB flash drive not showing up Home › Forums › RetroPie Project › New to RetroPie? Start Here! › USB flash drive not showing up › Reply To: USB flash drive not showing up 02/23/2016 at 02:03 #117856 vinsegaParticipant What do you mean by flash retropie over it? The only way I know how to put retropie on the SD card is by adding the image with my computer. How do I do it with the sd card already in the raspberry and running?