I get stuck at the account creation loop, and I tried the fix when you type -s blah blah blah, and when I get to the create a password step, i type passwd, and it says passwd is not a command! What am I supposed to do?

Type -s at the Darwin boot prompt.

/sbin/fsck -fy
/sbin/mount -uw /
/sbin/mount -uw /
passwd root ##it will ask you to enter a new password
touch /var/db/.AppleSetupDone


The default login user name when done will be root.