mirror of
https://github.com/ostreedev/ostree.git
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60b4655677
It's just part of the tests and we should no longer support `ostree trivial-httpd`. This is a followup cleanup to previous work.
547 lines
21 KiB
XML
547 lines
21 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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Copyright 2011,2013 Colin Walters <walters@verbum.org>
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SPDX-License-Identifier: LGPL-2.0+
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library. If not, see <https://www.gnu.org/licenses/>.
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-->
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<refentry id="ostree">
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<refentryinfo>
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<title>ostree</title>
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<productname>OSTree</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Colin</firstname>
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<surname>Walters</surname>
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<email>walters@verbum.org</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>ostree</refentrytitle>
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<manvolnum>1</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>ostree</refname>
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<refpurpose>Manage multiple bootable versioned filesystem trees</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>ostree</command>
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<arg choice="req">COMMAND</arg> <arg choice="opt" rep="repeat">OPTIONS</arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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OSTree is a tool for managing multiple bootable
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versioned filesystem trees, or just "tree" for
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short. In the OSTree model, operating systems no
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longer live in the physical "/" root directory.
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Instead, they parallel install to the new toplevel
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<filename>/ostree</filename> directory. Each
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installed system gets its own
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<filename>/ostree/deploy/<replaceable>stateroot</replaceable></filename>
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directory. (<literal>stateroot</literal> is the
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newer term for <literal>osname</literal>).
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</para>
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<para>
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Unlike <literal>rpm</literal> or
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<literal>dpkg</literal>, OSTree is only aware of
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complete filesystem trees. It has no built-in
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knowledge of what components went into creating the
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filesystem tree.
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</para>
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<para>
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It is possible to use OSTree in several modes; the
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most basic form is to replicate pre-built trees from
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a build server. Usually, these pre-built trees are
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derived from packages. You might also be using
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OSTree underneath a higher level tool which computes
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filesystem trees locally.
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</para>
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<para>
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It must be emphasized that OSTree only supports
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<emphasis>read-only</emphasis> trees. To change to
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a different tree (upgrade, downgrade, install
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software), a new tree is checked out, and a 3-way
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merge of configuration is performed. The currently
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running tree is not ever modified; the new tree will
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become active on a system reboot.
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</para>
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<para>
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To see the man page for a command run <command>man ostree <replaceable>COMMAND</replaceable></command> or <command>man ostree-admin <replaceable>COMMAND</replaceable></command>
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</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood:</para>
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<variablelist>
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<varlistentry>
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<term><option>--repo</option></term>
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<listitem><para>
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For most commands, a repository is
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required. If unspecified, the current
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directory is used if it appears to be an
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OSTree repository. If it isn't, either
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the <envar>OSTREE_REPO</envar>
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environment variable is used, or the
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system repository located at
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<filename>/sysroot/ostree/repo</filename>.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-v, --verbose</option></term>
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<listitem><para>
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Produce debug level output.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--version</option></term>
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<listitem><para>
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Print version information, including the features enabled
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at compile time, and exit.
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</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Commands</title>
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<para>System administrators will primarily interact
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with OSTree via the subcommand <command>ostree
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admin</command>.</para>
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<variablelist>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-cleanup</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Delete untagged
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deployments and repository objects.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-config-diff</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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See changes to
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<filename>/etc</filename> as compared
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to the current default (from
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<filename>/usr/etc</filename>).
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-deploy</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Takes a particular
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commit or revision, and sets it up for
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the next boot.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-init-fs</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Initialize a root filesystem
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in a specified path.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-instutil</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Utility functions intended primarily for operating system installation programs
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-os-init</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Initialize the
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deployment location for an operating
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system with a specified name.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-status</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Show and list the deployments.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-switch</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Choose a different ref
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to track from the same remote as the
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current tree.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-undeploy</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Remove the previously
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<replaceable>INDEX</replaceable>
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deployed tree from the bootloader
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configuration.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-admin-upgrade</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Download the latest version for the
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current ref, and deploy it.
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</para></listitem>
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</varlistentry>
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</variablelist>
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<para>Both administrators and operating system
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builders may interact with OSTree via the regular
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filesystem manipulation commands.
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</para>
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<variablelist>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-cat</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Concatenate contents of files
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-checkout</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Check out a commit into a filesystem tree.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-checksum</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Gives checksum of any file.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-commit</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Given one or more
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trees, create a new commit using those contents.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-config</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Change settings.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-create-usb</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Put the given refs on an external drive for P2P distribution.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-diff</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Concisely list
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differences between the given refs.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-find-remotes</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Find remotes to serve the given refs.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-fsck</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Check a repository for consistency.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-init</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Initialize a new repository.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-log</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Show revision log.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-ls</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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List the contents of a given commit.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-prune</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Search for unreachable objects.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-pull-local</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Copy data from source-repo.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-pull</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Download data from remote repo. If you have libsoup.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-refs</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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List refs.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-remote</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Manipulate remote archive configuration.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-reset</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Reset a ref to a previous commit.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-rev-parse</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Show the SHA256 corresponding to a given rev.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-show</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Given an OSTree SHA256 checksum, display its contents.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-static-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Manage static delta files.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><citerefentry><refentrytitle>ostree-summary</refentrytitle><manvolnum>1</manvolnum></citerefentry></term>
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<listitem><para>
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Regenerate the repository summary metadata.
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</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Examples</title>
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<para>
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For specific examples, please see the man page regarding the specific ostree command. For example:
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</para>
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<para>
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<command>man ostree init</command> or <command>man ostree-admin status</command>
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</para>
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</refsect1>
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<refsect1>
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<title>GPG verification</title>
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<para>
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OSTree supports signing commits with GPG. Operations on the system
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repository by default use keyring files in
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<filename>/usr/share/ostree/trusted.gpg.d</filename>. Any
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public key in a keyring file in that directory will be
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trusted by the client. No private keys should be present
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in this directory.
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</para>
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<para>
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In addition to the system repository, OSTree supports two
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other paths. First, there is a
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<literal>gpgkeypath</literal> option for remotes, which must point
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to the filename of an ASCII-armored GPG key, or a directory containing
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ASCII-armored GPG keys to import. Multiple file and directory paths
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to import from can be specified, as a comma-separated list of paths. This option
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may be specified by using <command>--set</command> in <command>ostree remote add</command>.
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</para>
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<para>
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Second, there is support for a per-remote
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<filename><replaceable>remotename</replaceable>.trustedkeys.gpg</filename>
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file stored in the toplevel of the repository (alongside
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<filename>objects/</filename> and such). This is
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particularly useful when downloading content that may not
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be fully trusted (e.g. you want to inspect it but not
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deploy it as an OS), or use it for containers. This file
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is written via <command>ostree remote add
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--gpg-import</command>.
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</para>
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</refsect1>
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<refsect1>
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<title>Terminology</title>
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<para>
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The following terms are commonly used throughout the man pages. Terms in upper case letters
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are literals used in command line arguments.
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</para>
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<glosslist>
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<glossentry><glossterm><literal>BRANCH</literal></glossterm>
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<glossdef>
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<para>
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Branch name. Part of a <glossterm><literal>REF</literal></glossterm>.
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</para>
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</glossdef>
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</glossentry>
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<glossentry><glossterm><literal>CHECKSUM</literal></glossterm>
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<glossdef>
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<para>
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A SHA256 hash of a object stored in the OSTree repository. This can be a content,
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a dirtree, a dirmeta or a commit object. If the SHA256 hash of a commit object is
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meant, the term <glossterm><literal>COMMIT</literal></glossterm> is used.
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</para>
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</glossdef>
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</glossentry>
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<glossentry><glossterm><literal>COMMIT</literal></glossterm>
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<glossdef>
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<para>
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A SHA256 hash of a commit object.
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</para>
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</glossdef>
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</glossentry>
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<glossentry><glossterm><literal>REF</literal></glossterm>
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<glossdef>
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<para>
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A reference to a particular commit. References are text files stored in
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<filename>refs/</filename> that name (refer to) a particular commit. A
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reference can only be the branch name part, in which case a local reference
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is used (e.g. <literal>mybranch/stable</literal>). If a remote branch
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is referred to, the remote name followed by a colon and the branch name
|
|
needs to be used (e.g. <literal>myremote:mybranch/stable</literal>).
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|
</para>
|
|
</glossdef>
|
|
</glossentry>
|
|
<glossentry><glossterm><literal>REV</literal></glossterm> <glossterm><literal>REFSPEC</literal></glossterm>
|
|
<glossdef>
|
|
<para>
|
|
A specific revision, a commit. This can be anything which can be resolved to a
|
|
commit, e.g. a <glossterm><literal>REF</literal></glossterm> or a
|
|
<glossterm><literal>COMMIT</literal></glossterm>.
|
|
</para>
|
|
</glossdef>
|
|
</glossentry>
|
|
<glossentry><glossterm>SHA256</glossterm>
|
|
<glossdef>
|
|
<para>
|
|
A cryptographic hash function used to store objects in the OSTree
|
|
repository. The hashes have a length of 256 bites and are typically
|
|
shown and passed to ostree in its 64 ASCII character long hexadecimal
|
|
representation
|
|
(e.g. 0fc70ed33cfd7d26fe99ae29afb7682ddd0e2157a4898bd8cfcdc8a03565b870).
|
|
</para>
|
|
</glossdef>
|
|
</glossentry>
|
|
</glosslist>
|
|
</refsect1>
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>ostree.repo</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|