View source for Initramfs zfs boot

== Overview ==
Both Debian and Ubuntu fail to boot when there is an arbitrarily more complex zpool than a single vdev that contains the bootfs.

=== Notes on Boot Process ===
* The linux kernel is initially bootstrapped.
* The compiled-in initramfs is mounted and executed.
* * It mounts the external initramfs; Deletes everything under its own initramfs; Executes the external initramfs /init