zfs-linux for Debian

1. Feature flags are enabled by default.

This means that ZoL will now create pools in a way that is
incompatible with Solaris. If you need Solaris compatibility,
then create pools like this:

  # zpool create -o version=28 tank ...

ZoL remains compatible with all other ZFS implementations derived
from Illumos.

2. Use zfs-initramfs with caution.

Debian Installer's root installation support is being worked on,
and zfs-initramfs is included here but still needs to be tested
in detail. Since faulty operation on filesystem can lead to major
loss of data, please use zfs-initramfs with caution.

 -- Aron Xu <aron@debian.org>  Sat, 3 Aug 2013 03:23:11 +0800