Mac OS not accessible
i finally figured it out. my situation without a recovery HD i had to either partition my internal HD in half for linux and macos or just by a external HD do i bought an external HD because i didn't want to mess with partitions and i also bought an installation usb of macOS el capitan. I formatted the external HD to macOS extended (journed) and installed os el capitan. i am now upgrading to high sierra because i have an old imac i cant get mojave. hopefully this helps! :)