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Improved wording on HAL page, following suggestions from Archaic.

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git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@7157 af4574ff-66df-0310-9fd7-8a98e5e911e0
This commit is contained in:
Alexander E. Patrakov 2007-12-22 07:15:43 +00:00
parent f2775848cd
commit 3496df9281
1 changed files with 39 additions and 22 deletions
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61
general/sysutils/hal.xml
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@ -244,6 +244,7 @@ cd hal-info-&hal-info-version; &&
</sect3>
<sect3><title>Configuration Information</title>
<sect4><title>Allowing users to invoke HAL methods</title>
<para>The default setup for <application>HAL</application> is to allow
only certain users to invoke methods such as Mount(). These are
@ -302,7 +303,9 @@ EOF</userinput></screen>
&lt;/device&gt;
&lt;/deviceinfo&gt;</literal>
EOF</userinput></screen>
</sect4>
<sect4><title>Installing mount helpers</title>
<para><application>HAL</application> only provides the methods such
as Mount() to act on hardware. In order to take advantage of these,
a <application>HAL</application> event handler such as
@ -310,7 +313,11 @@ EOF</userinput></screen>
url="http://ivman.sourceforge.net/">Ivman</ulink> should be
installed.</para>
<!-- FIXME: is Ivman still alive? -->
<!-- FIXME: explicitly name the mount helpers
from KDE (???) and Xfce (exo-mount) -->
</sect4>
<sect4><title>Changing default mount options</title>
<para>In some cases, it is necessary to specify some default mount
options for filesystems. E.g., in non-English environments, the
<option>iocharset</option> and <option>codepage</option> options
@ -351,19 +358,9 @@ EOF</userinput></screen>
<para>The important point above is that the configuration procedure is
desktop-specific. However, as of December, 2007, only GNOME allows the
user to set default mount options on a per-filesystem basis. To do so,
change the
<systemitem>/system/storage/default_options/[fs_type]/mount_options</systemitem>
GConf key either using <xref linkend="gconf-editor"/>, or from the
command line, as demonstrated in the following example:</para>
<screen><userinput>gconftool-2 --type list --list-type=string \
--set /system/storage/default_options/vfat/mount_options \
"[shortname=mixed,uid=,usefree,iocharset=koi8-r,codepage=866]"</userinput></screen>
<para>See more details in the gnome-mount(1) manual page.</para>
<para>KDE allows the mount options to be set only on a per-volume basis,
user to set default mount options on a per-filesystem basis,
as described in the next paragraph.
KDE allows the mount options to be set only on a per-volume basis,
not per-filesystem, which is a
<ulink url="http://bugs.kde.org/show_bug.cgi?id=133456">bug</ulink>,
because, as mentioned in the report, <quote>for every new device (let's
@ -376,16 +373,33 @@ EOF</userinput></screen>
solution, but, from the description, policy-kit looks like
an XML-ized sudo-like confguration parser, which has nothing
common with the "default mount options" problem. -->
In these desktop environments, if the built-in
default mount options are not suitable, it is needed to mention every
possible removable storage device in <filename>/etc/fstab</filename>
with the correct options, thus mostly defeating the point of
installing HAL.</para>
In KDE and Xfce, if the built-in default mount options are not suitable,
it is needed to mention every possible removable storage device in
<filename>/etc/fstab</filename> with the correct options, thus mostly
defeating the point of installing HAL.</para>
<para>In order to adjust the default mount options, GNOME users should
change the
<systemitem>/system/storage/default_options/[fs_type]/mount_options</systemitem>
GConf key either using <xref linkend="gconf-editor"/>, or from the
command line, as demonstrated in the following example:</para>
<para>If HAL does not accept new mount options by default,
(in the above example, this happens with the <option>usefree</option>
option), as <systemitem class="username">root</systemitem> user,
create a custom policy file that mentions unknown mount options:</para>
<screen><userinput>gconftool-2 --type list --list-type=string \
--set /system/storage/default_options/vfat/mount_options \
"[shortname=mixed,uid=,usefree,iocharset=koi8-r,codepage=866]"</userinput></screen>
<para>See more details in the gnome-mount(1) manual page.</para>
</sect4>
<sect4><title>Adding allowed mount options</title>
<para>The list of mount options permitted in the default HAL
configuration resides in the
<filename>/usr/share/hal/fdi/policy/10osvendor/20-storage-methods.fdi</filename>
file. GNOME and KDE users may want to use options not in this
list (in the above example, this applies to the <option>usefree</option>
option). In this case, as <systemitem class="username">root</systemitem>
user, create a custom policy file that mentions unknown mount
options:</para>
<screen role="root"><userinput>install -v -m755 -d /etc/hal/fdi/policy/30user &amp;&amp;
cat &gt; /etc/hal/fdi/policy/30user/30user-options.fdi &lt;&lt; "EOF"
@ -406,6 +420,7 @@ should be in files contained in the /etc/hal/fdi/policy directories.
&lt;match key="storage.media_check_enabled" bool="false"&gt;
&lt;match key="storage.no_partitions_hint" bool="true"&gt;
&lt;append key="volume.mount.valid_options" type="strlist"&gt;usefree&lt;/append&gt;
&lt;!-- Insert other options here --&gt;
&lt;/match&gt;
&lt;/match&gt;
@ -414,6 +429,7 @@ should be in files contained in the /etc/hal/fdi/policy directories.
&lt;!-- allow these mount options for vfat --&gt;
&lt;match key="volume.fstype" string="vfat"&gt;
&lt;append key="volume.mount.valid_options" type="strlist"&gt;usefree&lt;/append&gt;
&lt;!-- Insert other options here --&gt;
&lt;/match&gt;
&lt;/match&gt;
@ -421,6 +437,7 @@ should be in files contained in the /etc/hal/fdi/policy directories.
&lt;/deviceinfo&gt;</literal>
EOF</userinput></screen>
</sect4>
</sect3>
<sect3 id="hal-init">