Originally Posted by sjau
Post your /etc/initramfs-tools/scripts/local-top/cryptroot script
This directory is empty.
If you mean the file /scripts/local-top/cryptroot in the netboot initrd image then it is the same as what is in the original initrd. Which in turn comes from /usr/share/initramfs-tools/scripts/local-top/cryptroot unmodified. These files are part of the cryptsetup package and are the same over all ubuntu based distros. My cryptsetup is version 2:1.0.5-2ubuntu12
What I noticed that the prompt asking for the pass phrase showed up on the console instead of in my ssh session but took no input.