Re: Boot loader broken. Error
It would be helpful if you list all the OSs on the internal and the external HDD.
It looks like you installed the bootloader to the internal HDD after all. And because the config files are on the ext HDD, it can't boot without it.
Boot your main ubuntu (if you have it) from the int HDD (having the ext hdd attached if needed) and just execute:
sudo grub-install /dev/sda
That will install the grub from the booted system onto the MBR of /dev/sda.
Unless you have a wubi install, because you say "could of menus on startup". Usually there is one bootloader, there is no couple of menus.
If you have some kind of "special" setup be careful before running any commands who don't take into account specific setups.
Darko.
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Ubuntu 18.04 LTS 64bit
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