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OpenZFS on Linux and FreeBSD
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Ned Bass fa417e57a6 Call udevadm trigger more safely 
Some udev hooks are not designed to be idempotent, so calling udevadm
trigger outside of the distribution's initialization scripts can have
unexpected (and potentially dangerous) side effects.  For example, the
system time may change or devices may appear multiple times.  See Ubuntu
launchpad bug 320200 and this mailing list post for more details:

https://lists.ubuntu.com/archives/ubuntu-devel/2009-January/027260.html

To avoid these problems we call udevadm trigger with --action=change
--subsystem-match=block.  The first argument tells udev just to refresh
devices, and make sure everything's as it should be.  The second
argument limits the scope to block devices, so devices belonging to
other subsystems cannot be affected.

This doesn't fix the problem on older udev implementations that don't
provide udevadm but instead have udevtrigger as a standalone program.
In this case the above options aren't available so there's no way to
call call udevtrigger safely.  But we can live with that since this
issue only exists in optional test and helper scripts, and most
zfs-on-linux users are running newer systems anyways.
 		2011-04-05 13:00:51 -07:00
cmd Call udevadm trigger more safely 2011-04-05 13:00:51 -07:00
config Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -07:00
dracut Add dracut support 2011-03-17 16:52:04 -07:00
etc Set cmd paths in udev rules using --prefix 2011-03-25 10:05:09 -07:00
include Fix libzpool cv_* build error 2011-03-31 12:20:53 -07:00
lib Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -07:00
man Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -07:00
module Fix inflated load average 2011-03-31 17:07:12 -07:00
patches Add build system 2010-08-31 13:41:27 -07:00
scripts Call udevadm trigger more safely 2011-04-05 13:00:51 -07:00
.gitignore Ignore unsigned module build products 2010-03-09 14:14:09 -08:00
AUTHORS Add dracut support 2011-03-17 16:52:04 -07:00
COPYING Relocate COPYING+COPYRIGHT, remove README cruft 2008-12-01 15:34:53 -08:00
COPYRIGHT Update COPYRIGHT to reference zpios CDDL exceptions. 2010-05-18 14:25:28 -07:00
ChangeLog Add build system 2010-08-31 13:41:27 -07:00
DISCLAIMER Update COPYRIGHT and DISCLAIMER. 2010-05-18 10:32:23 -07:00
META Prep zfs-0.6.0-rc2 tag 2011-03-09 15:26:48 -08:00
Makefile.am Add dracut support 2011-03-17 16:52:04 -07:00
Makefile.in Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Fix markdown rendering 2010-09-15 09:09:37 -07:00
ZFS.RELEASE Update to onnv_147 2010-08-26 14:24:34 -07:00
autogen.sh Minor packaging fixes 2010-09-01 15:42:32 -07:00
configure Set cmd paths in udev rules using --prefix 2011-03-25 10:05:09 -07:00
configure.ac Set cmd paths in udev rules using --prefix 2011-03-25 10:05:09 -07:00
zfs-modules.spec.in Update CHAOS 5 Packaging 2011-03-31 13:49:42 -07:00
zfs-script-config.sh.in Unconditionally load core kernel modules 2010-11-11 11:38:25 -08:00
zfs.spec.in Spec file compat, %{datadir} 2011-03-25 10:08:49 -07:00
zfs_config.h.in Linux 2.6.28 compat, insert_inode_locked() 2011-03-22 12:15:54 -07:00

README.markdown

Native ZFS for Linux! ZFS is an advanced file system and volume manager which was originally developed for Solaris. It has been successfully ported to FreeBSD and now there is a functional Linux ZFS kernel port too. The port currently includes a fully functional and stable SPA, DMU, and ZVOL with a ZFS Posix Layer (ZPL) on the way!

$ ./configure
$ make pkg

Full documentation for building, configuring, and using ZFS can be found at: http://zfsonlinux.org