Install the zfs-dracut package. This package adds a zfs dracut
module to the /usr/share/dracut/modules.d/ directory which allows dracut
to create an initramfs which is zfs aware.
Set the bootfs property for the bootable dataset in the pool.
Then set the dataset mountpoint property to '/'.
$ zpool set bootfs=pool/dataset $ zfs set mountpoint=/
pool/dataset
Alternately, legacy mountpoints can be used by setting the 'root='
option on the kernel line of your grub.conf/menu.lst configuration file.
Then set the dataset mountpoint property to 'legacy'.
$ grub.conf/menu.lst: kernel ... root=ZFS=pool/dataset
$ zfs set mountpoint=legacy pool/dataset
To set zfs module options put them in /etc/modprobe.d/zfs.conf
file. The complete list of zfs module options is available by running
the modinfo zfs command. Commonly set options include:
zfs_arc_min, zfs_arc_max, zfs_prefetch_disable, and
zfs_vdev_max_pending.
Finally, create your new initramfs by running dracut.
