Yesterday I built my first computer. I'm trying to put Kali on it. I don't have wifi or ethernet on my new computer yet. Every time I try to install I get an error when installing GRUB. "The 'grub-pc' package failed to install into /target/. Without the GRUB boot loader, the installed system will not boot." Is there a way to fix this? Or can I install grub via a thumb drive? Please help.