Front squats vs Back squats

So, /fit/, my gym has no squat rack. As you know, we all have to do our squats, but the closest thing my gym has to a squat rack is a smith machine(lmao smith!1!!).
Is it acceptable to clean the bar up and do front squats as opposed to doing back squats? Lifting the bar over my head isn't exactly easy.

Just so you know, I used to squat in the smith rack.
>mfw