Hello Everyone

I upgraded Backtrack Gnome 32 bits R1 to R2, the upgrade was a Sucessfull, but I have a question, when the grub appears. I have the two Kernels, the and the new Kernel, and I can boot with both kernels

Have I both backtrack in my PC, the backtrack R1 and R2??
Can I deleted the old kernel from the grub and only have the new kernel??

It´s all

Thank you very much for reading