Author: alexander
Date: 2007-12-21 10:08:30 -0700 (Fri, 21 Dec 2007)
New Revision: 7152
Modified:
trunk/BOOK/general.ent
trunk/BOOK/general/sysutils/hal.xml
trunk/BOOK/introduction/welcome/changelog.xml
Log:
Updated the text about default mount options.
Modified: trunk/BOOK/general/sysutils/hal.xml
===================================================================
--- trunk/BOOK/general/sysutils/hal.xml 2007-12-20 00:59:23 UTC (rev 7151)
+++ trunk/BOOK/general/sysutils/hal.xml 2007-12-21 17:08:30 UTC (rev 7152)
@@ -309,39 +309,86 @@
<xref linkend="gnome-volume-manager"/> or <ulink
url="http://ivman.sourceforge.net/";>Ivman</ulink> should be
installed.</para>
+ <!-- FIXME: is Ivman still alive? -->
- <!-- Following note is only relevant for HAL-0.5.7.x.
- Fixed upstream. -->
- <note>
- <para><application>HAL</application> will ignore any devices listed
- in <filename>/etc/fstab</filename> for the purpose of automounting.
- You must remove any listings for devices that you would like
- automounted such as CD-ROMs or USB keys.</para>
- </note>
+ <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
+ are needed for filesystems with Windows origin in order to show
+ national characters correctly. Also, due to a
+ <ulink url="https://launchpad.net/bugs/133567";>bug</ulink> in the
+ Linux kernel version in LFS (2.6.22.x), you may want to pass the
+ <option>usefree</option> options to vfat filesystems in order to reduce
+ the time needed to determine the amount of free space on the
+ filesystem.</para>
- <!-- This section commented out for now until it is determined what should
- be placed in this section
+ <para>Google search results for <quote>hal default mount options</quote>
+ are still full of recommendations to create <filename>*.fdi</filename>
+ files mentioning either
+ <option>volume.policy</option> or <option>storage.ploicy</option> keys.
+ Such recommendations worked for HAL-0.4.x only and are invalid now.
+ For HAL-&hal-version;, mount options are expected to be handled
+ as follows:</para>
- FIXME: I think this information is still relevant with the
- exception of its interaction with /etc/fstab. Needs investigation.
+ <itemizedlist>
+ <listitem>
+ <para>An event handler from the desktop environment receives an
+ event describing the newly-added storage device.</para>
+ </listitem>
+ <listitem>
+ <para>If the storage device is not already mentioned in
+ <filename>/etc/fstab</filename>, mount options are fetched from
+ a database of user preferences, which is specific to the desktop
+ environment, and passed back to HAL.
+ This process can be influenced by the filesystem type
+ and possibly other volume properties available from HAL.</para>
+ </listitem>
+ <listitem>
+ <para>If the options are in the list of permitted ones, HAL
+ mounts the volume.</para>
+ </listitem>
+ </itemizedlist>
- <para>No configuration is necessary for the majority of installations
- on systems configured with ISO-8859-1 compatible locales. The defaults
- should work just fine. For some installations, tweaking of the various
- policies may be required. One such configuration change necessary in some
- locales is identifying the <option>iocharset</option> and
- <option>codepage</option> variables in the
- <filename>/etc/fstab</filename> entries created by the
- <command>fstab-sync</command> program. If changes are required to the
- configuration so that your locale is properly identified in the entries
- created in <filename>/etc/fstab</filename>, issue the following commands
- as the <systemitem class="username">root</systemitem> user (you must
- substitute the proper data for the
- <replaceable><iocharset></replaceable> and
- <replaceable><codepage></replaceable> info):</para>
+ <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,
+ 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
+ say your friend USB stick) you have to first not mount it, then change
+ options and then mount</quote>. Xfce, if compiled with HAL support,
+ <ulink
url="http://bugzilla.xfce.org/show_bug.cgi?id=2891";>hard-codes</ulink>
+ the mount options without any means to override them,
+ which is even worse.
+ <!-- (for BLFS editors only: they mention policy-kit as a future
+ 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>
+
+ <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 role="root"><userinput>install -v -m755 -d /etc/hal/fdi/policy/30user
&&
-cat > /etc/hal/fdi/policy/30user/30user-policy.fdi << "EOF"
+cat > /etc/hal/fdi/policy/30user/30user-options.fdi << "EOF"
<literal><?xml version="1.0" encoding="UTF-8"?> <!- -*- SGML -*- ->
<!-
@@ -352,53 +399,28 @@
->
<deviceinfo version="0.2">
-
<device>
- <match key="info.udi"
- string="/org/freedesktop/Hal/devices/computer">
- <!- Set the iocharset variable in the /etc/fstab file entry ->
- <merge
-
key="storage.policy.default.mount_option.iocharset=<replaceable><iocharset></replaceable>"
- type="bool">true</merge>
+ <!-- this is to be able to mount media in drives we cannot poll,
+ e.g. IDE Zip Drives and PC style floppy drives -->
+ <match key="storage.media_check_enabled" bool="false">
+ <match key="storage.no_partitions_hint" bool="true">
+ <append key="volume.mount.valid_options"
type="strlist">usefree</append>
+ </match>
+ </match>
- <!- Set the codepage variable in the /etc/fstab file entry ->
- <merge
-
key="storage.policy.default.mount_option.codepage=<replaceable><codepage></replaceable>"
- type="bool">true</merge>
+ <match key="volume.fsusage" string="filesystem">
+ <!-- allow these mount options for vfat -->
+ <match key="volume.fstype" string="vfat">
+ <append key="volume.mount.valid_options"
type="strlist">usefree</append>
+ </match>
</match>
+
</device>
-
</deviceinfo></literal>
-
EOF</userinput></screen>
- <note>
- <para>The previous commands created a file named
- <filename>/etc/hal/fdi/policy/30user/30user-policy.fdi</filename>. To
- ease readability of the file, put everything between the
- <angle brackets> and <merge></merge> tags on one
- line. You must have at least one space character
- where the ends of the lines were. The file would then look like this
- (trimmed at the top and bottom for brevity):</para>
-
-<screen><literal> <device>
- <match key="<replaceable><text></replaceable>"
string="<replaceable><text></replaceable>">
-
- <!- Set the iocharset variable in the /etc/fstab file entry ->
- <merge key="<replaceable><iocharset text></replaceable>"
type="bool">true</merge>
-
- <!- Set the codepage variable in the /etc/fstab file entry ->
- <merge key="<replaceable><codepage text></replaceable>"
type="bool">true</merge>
-
- </match>
- </device></literal></screen>
-
- </note>
-
- -->
-
</sect3>
<sect3 id="hal-init">
Modified: trunk/BOOK/general.ent
===================================================================
--- trunk/BOOK/general.ent 2007-12-20 00:59:23 UTC (rev 7151)
+++ trunk/BOOK/general.ent 2007-12-21 17:08:30 UTC (rev 7152)
@@ -3,11 +3,11 @@
$Date$
-->
-<!ENTITY day "19"> <!-- Always 2 digits -->
+<!ENTITY day "21"> <!-- Always 2 digits -->
<!ENTITY month "12"> <!-- Always 2 digits -->
<!ENTITY year "2007">
<!ENTITY version "svn-&year;&month;&day;">
-<!ENTITY releasedate "December &day;th, &year;">
+<!ENTITY releasedate "December &day;st, &year;">
<!ENTITY pubdate "&year;-&month;-&day;"> <!-- metadata req. by TLDP -->
<!ENTITY blfs-version "svn"> <!-- svn|[release #] -->
<!ENTITY lfs-version "development"> <!--
version|testing|unstable|development] -->
Modified: trunk/BOOK/introduction/welcome/changelog.xml
===================================================================
--- trunk/BOOK/introduction/welcome/changelog.xml 2007-12-20 00:59:23 UTC
(rev 7151)
+++ trunk/BOOK/introduction/welcome/changelog.xml 2007-12-21 17:08:30 UTC
(rev 7152)
@@ -42,6 +42,16 @@
-->
<listitem>
+ <para>December 21st, 2007</para>
+ <itemizedlist>
+ <listitem>
+ <para>[alexander] - Updated the text about default mount options
+ on the HAL page.</para>
+ </listitem>
+ </itemizedlist>
+ </listitem>
+
+ <listitem>
<para>December 19th, 2007</para>
<itemizedlist>
<listitem>
--
http://linuxfromscratch.org/mailman/listinfo/blfs-book
FAQ: http://www.linuxfromscratch.org/blfs/faq.html
Unsubscribe: See the above information page
