https://en.wikipedia.org/wiki/Initrd https://en.wikipedia.org/wiki/Initrd The one I have tells my kernel how to boot into my encrypted drive. It is also necess

https://en.wikipedia.org/wiki/Initrd https://en.wikipedia.org/wiki/Initrd The one I have tells my kernel how to boot into my encrypted drive. It is also necessary for RAID, LVM, and NFS root filesystems, loading special modules and drivers before booting, and loading swap back into memory after hibernation.