How to enable core dumps in backtrack linux?

hockey1scool

I am using backtrack r5. I want it to enable core dumps but it does. I have tried ulimit -c unlimited but it doesn't change anything.

so I was wondering if someone knew how to. I am using gdb debbuger to look at the program but there is no core file.

I am sorry if this is in the wrong forum. I don't know where to put it.