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ZED depends on /var. When /var is a separate dataset, it must be
mounted before starting ZED. This change moves the zfs-zed service
from starting first, to starting after zfs-mount, but before zfs-share.
As discussed in issue #3513, ZED does not need to start first in order
to consume events made during the zfs-import and zfs-mount services.
The events will be queued and can be handled later in the boot process.
ZED may, however, handle sharing in the future, so it should be started
before the zfs-share service.
This commit also stops the zfs-import service from writing temp files
to /var/tmp on shutdown and it corrects the return code for the OpenRC
service.
Other OpenRC-specific changes noted in issue #3513 were reitereated in
issue #3715 and committed in da619f3.
Signed-off-by: James Lee <jlee@thestaticvoid.com>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3513
73 lines
2.4 KiB
Markdown
73 lines
2.4 KiB
Markdown
DESCRIPTION
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These script were written with the primary intention of being portable and
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usable on as many systems as possible.
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This is, in practice, usually not possible. But the intention is there.
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And it is a good one.
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They have been tested successfully on:
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* Debian GNU/Linux Wheezy
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* Debian GNU/Linux Jessie
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* Ubuntu Trusty
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* CentOS 6.0
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* CentOS 6.6
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* Gentoo
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SUPPORT
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If you find that they don't work for your platform, please report this
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at the ZFS On Linux issue tracker at https://github.com/zfsonlinux/zfs/issues.
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Please include:
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* Distribution name
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* Distribution version
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* Where to find an install CD image
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* Architecture
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If you have code to share that fixes the problem, that is much better.
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But please remember to try your best keep portability in mind. If you
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suspect that what you're writing/modifying won't work on anything else
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than your distribution, please make sure to put that code in appropriate
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if/else/fi code.
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It currently MUST be bash (or fully compatible) for this to work.
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If you're making your own distribution and you want the scripts to
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work on that, the biggest problem you'll (probably) have is the part
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at the beginning of the "zfs-functions.in" file which sets up the
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logging output.
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INSTALLING INIT SCRIPT LINKS
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To setup the init script links in /etc/rc?.d manually on a Debian GNU/Linux
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(or derived) system, run the following commands (the order is important!):
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update-rc.d zfs-import start 07 S . stop 08 0 1 6 .
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update-rc.d zfs-mount start 02 2 3 4 5 . stop 07 0 1 6 .
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update-rc.d zfs-zed start 26 2 3 4 5 . stop 06 0 1 6 .
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update-rc.d zfs-share start 27 2 3 4 5 . stop 05 0 1 6 .
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To do the same on RedHat, Fedora and/or CentOS:
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chkconfig zfs-import
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chkconfig zfs-mount
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chkconfig zfs-zed
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chkconfig zfs-share
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On Gentoo:
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rc-update add zfs-import boot
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rc-update add zfs-mount boot
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rc-update add zfs-zed default
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rc-update add zfs-share default
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The idea here is to make sure all of the ZFS filesystems, including possibly
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separate datasets like /var, are mounted before anything else is started.
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Then, ZED, which depends on /var, can be started. It will consume and act
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on events that occurred before it started. ZED may also play a role in
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sharing filesystems in the future, so it is important to start before the
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'share' service.
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Finally, we share filesystems configured with the share\* property.
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