I cannot find how to install grub-crypt either.
How can I generate SHA512 pass hashes on Centos 7?
Edit: I was actually trying to look up how to generate hashes with an adjustable number of rounds. I had done this before but couldn't remember how I did it last time.
I can use this solution with the way to generate a random hash given in a comment.
The page I was looking for (which I didn't know I was looking for) was this page. It contains information that allows me to configure the # of rounds of hashing to do for passwords. Then in order to generate new passwords, I simply set the password for a user as root, and read out the hash from /etc/shadow.
