[SOLVED] Linux Lite Won't Run

[gold_finger]

Last command was meant to be run from the installed LL (assuming you were able to boot into it), not from the live DVD (which is what it looks like you ran command from).

It's strange that LL's grub appears to be working to boot the other two systems, but not for booting LL itself.  Sounds like maybe the installation of LL didn't go completely right.  Think easiest thing might just be to install again.  Just point it to same LL partition(s) using the "Something else" install option, set mount points, check box to format the LL partition(s), etc.  Hopefully it installs right this time and problem disappears.