Alright, so on an external hard drive, I plan to make multiple Ubuntu installations. As some computers do not mesh well with trying to use a different hierarchy as far as I can understand, how can I make a bootloader on the said external hard drive to support being able to choose between 64-bit and 32-bit?
Here's the partitioning game plan I have drawn out:
Not-bootable: FAT32 - 830GB "ObsidianWin"
Bootable: ext4 - 50GB "Obsidian32"
Bootable: ext4 - 50GB "Obsidian64"
Swap space: swap - 2GB
Total usable space: 932GB
If there needs to be another partition for the bootloader, then the FAT32 can get shrinked - I really don't mind/care, since the ObsidianWin partition is basically for storage.