im trying to yosemite onto my dell optiplex 755 sff and i have made a usb using a yosemite torrents i download and transmac. when i plug it in and try to boot from it it just sits on a black screen with a foward slash in the top left corner /

i checked the usb properties and it says it is not the 5gb or so that the yosemite file is it was 80mb i think not sure if this is problem. i also have a fresh formatted hard drive in it

any help or suggestion are greatly appreciated

submitted by /u/Sl20007
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