GRUB question. I want to delete the partition of the distro that installed GRUB...
I have two distros and windows installed. I only want one distro (I have decided on Ubuntu) and windows. But, the other distro, the one that I want to eradicate is the last one installed and it is its GRUB in the MBR.
I know what happens from experience if I just delete that partition with a liveCD - GRUB won't boot anything on reboot.
What do I need to do from within Ubuntu or the other Linux before deleting the partition of the second distro so that I have a working GRUB when I reboot ?