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47a2455fbc
mirror_zfs/dracut
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Brian Behlendorf 47a2455fbc Use datadir not datarootdir for dracut 
The zfs dracut modules should be installed under the --datadir
not --datarootdir path.  This was just an oversight in the
original Makefile.am.

After this change %{_datadir} can now be set safely in the
zfs.spec file.  The 'make install' location is now consistent
with the location expected by the spec file.
2011-06-17 13:22:19 -07:00
..
90zfs Use datadir not datarootdir for dracut 2011-06-17 13:22:19 -07:00
Makefile.am Add dracut support 2011-03-17 16:52:04 -07:00
Makefile.in Always check -Wno-unused-but-set-variable gcc support 2011-06-14 16:40:35 -07:00
README.dracut.markdown Add dracut support 2011-03-17 16:52:04 -07:00

README.dracut.markdown

How to setup a zfs root filesystem using dracut

  1. 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.

  2. 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

  1. 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.

  2. Finally, create your new initramfs by running dracut.

    $ dracut --force /path/to/initramfs kernel_version