No grldr

Hi, My problem is, I have a little computer that I formated.
I put fedora but when I wanted to uninstall it I had no choice but to delete sda2 and sda1 (from gparting on unbuntu on an usb device).

Now the problem is, when I boot the pc I have only something called "grub".
When I tried to install another OS it said " NO GRLDR "...
Is there any way to install this "grldr"..?

you could, after a failed linux install, theoretically save the setup by looking for what files are missing and downloading those etc... but my suggestion: remove everything and start over.
installing lubuntu afresh shouldn't take more than half an hour, good luck.