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authorManuel Canales Esparcia <manuel@linuxfromscratch.org>2006-08-03 19:29:29 +0000
committerManuel Canales Esparcia <manuel@linuxfromscratch.org>2006-08-03 19:29:29 +0000
commitc226182dc5ff37f733c895ab16483ebd37c02bcc (patch)
tree82a9abff83df5aa35fec4fd1539091cfb7920ef2 /chapter07/symlinks.xml
parenta15464dfe656aec48ced77b2ded760f0cc639ad7 (diff)
Ported updates from 6.2 branch.
Small tags fixes. git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@7758 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
Diffstat (limited to 'chapter07/symlinks.xml')
-rw-r--r--chapter07/symlinks.xml35
1 files changed, 24 insertions, 11 deletions
diff --git a/chapter07/symlinks.xml b/chapter07/symlinks.xml
index c3e799867..5538aed27 100644
--- a/chapter07/symlinks.xml
+++ b/chapter07/symlinks.xml
@@ -32,14 +32,23 @@
location of the device on the bus. If you are going to use the first
approach, create a file similar to the following:</para>
-<screen role="nodump"><userinput>cat &gt;/etc/udev/rules.d/82-cdrom.rules &lt;&lt;"EOF"
+<screen role="nodump"><userinput>cat &gt;/etc/udev/rules.d/82-cdrom.rules &lt;&lt; EOF
<literal>
# Custom CD-ROM symlinks
-SUBSYSTEM=="block", ENV{ID_MODEL}=="SAMSUNG_CD-ROM_SC-148F", ENV{ID_REVISION}=="PS05", SYMLINK+="cdrom"
-SUBSYSTEM=="block", ENV{ID_MODEL}=="PHILIPS_CDD5301", ENV{ID_SERIAL}=="5VO1306DM00190", SYMLINK+="cdrom1 dvd"
+SUBSYSTEM=="block", ENV{ID_MODEL}=="SAMSUNG_CD-ROM_SC-148F", \
+ ENV{ID_REVISION}=="PS05", SYMLINK+="cdrom"
+SUBSYSTEM=="block", ENV{ID_MODEL}=="PHILIPS_CDD5301", \
+ ENV{ID_SERIAL}=="5VO1306DM00190", SYMLINK+="cdrom1 dvd"
</literal>
EOF</userinput></screen>
+ <note>
+ <para>Although the examples in this book work properly, be aware
+ that Udev does not recognize the backslash for line continuation.
+ If modifying Udev rules with an editor, be sure to leave each rule
+ on one physical line.</para>
+ </note>
+
<para>This way, the symlinks will stay correct even if you move the drives
to different positions on the IDE bus, but the
<filename>/dev/cdrom</filename> symlink won't be created if you replace
@@ -49,17 +58,19 @@ EOF</userinput></screen>
<para>The SUBSYSTEM==&quot;block&quot; key is needed in order to avoid
matching SCSI generic devices. Without it, in the case with SCSI
- CD-ROMs, the symlinks will sometimes point to the correct
+ CD-ROMs, the symlinks will sometimes point to the correct
<filename>/dev/srX</filename> devices, and sometimes to
<filename>/dev/sgX</filename>, which is wrong.</para>
-
+
<para>The second approach yields:</para>
-<screen role="nodump"><userinput>cat &gt;/etc/udev/rules.d/82-cdrom.rules &lt;&lt;"EOF"
+<screen role="nodump"><userinput>cat &gt;/etc/udev/rules.d/82-cdrom.rules &lt;&lt; EOF
<literal>
# Custom CD-ROM symlinks
-SUBSYSTEM=="block", ENV{ID_TYPE}=="cd", ENV{ID_PATH}=="pci-0000:00:07.1-ide-0:1", SYMLINK+="cdrom"
-SUBSYSTEM=="block", ENV{ID_TYPE}=="cd", ENV{ID_PATH}=="pci-0000:00:07.1-ide-1:1", SYMLINK+="cdrom1 dvd"
+SUBSYSTEM=="block", ENV{ID_TYPE}=="cd", \
+ ENV{ID_PATH}=="pci-0000:00:07.1-ide-0:1", SYMLINK+="cdrom"
+SUBSYSTEM=="block", ENV{ID_TYPE}=="cd", \
+ ENV{ID_PATH}=="pci-0000:00:07.1-ide-1:1", SYMLINK+="cdrom1 dvd"
</literal>
EOF</userinput></screen>
@@ -105,11 +116,13 @@ EOF</userinput></screen>
<para>Then write rules that create the symlinks, e.g.:</para>
-<screen role="nodump"><userinput>cat &gt;/etc/udev/rules.d/83-duplicate_devs.rules &lt;&lt;"EOF"
+<screen role="nodump"><userinput>cat &gt;/etc/udev/rules.d/83-duplicate_devs.rules &lt;&lt; EOF
<literal>
# Persistent symlinks for webcam and tuner
-KERNEL=="video*", SYSFS{idProduct}=="1910", SYSFS{idVendor}=="0d81", SYMLINK+="webcam"
-KERNEL=="video*", SYSFS{device}=="0x036f", SYSFS{vendor}=="0x109e", SYMLINK+="tvtuner"
+KERNEL=="video*", SYSFS{idProduct}=="1910", SYSFS{idVendor}=="0d81", \
+ SYMLINK+="webcam"
+KERNEL=="video*", SYSFS{device}=="0x036f", SYSFS{vendor}=="0x109e", \
+ SYMLINK+="tvtuner"
</literal>
EOF</userinput></screen>