I've been trying to get Kraken2 installed locally and the main database is clearly far too large. I got 16S greengenes working fine and so now I'd like to try a larger database, the entire bacterial database. I don't understand why it is so huge on my local PC. For example the kraken 2 manual states that the entire standard database (which consists of the bacterial one and others if I am not mistaken) should take around 100GB. I've tried installing and building only the bacterial database locally and it is currently taking 254GB and failed to install as the disc filled up completely. What gives?