I have a remote server running Ubuntu 18.04. When I ran apt upgrade today, I got an error message from grub that original boot device is not found, asking me to select the disk for installing boot loader. As per the suggestion on the prompt, I selected all listed devices. But I still got some error messages when installing the boot loader.
I tried to run grub-emu to verify that the bootloader is installed correctly. I am getting the following screen, with lots of garbage text. What is wrong?
I am connected to the remote server via SSH, from a Mac OSX terminal.
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