diff options
Diffstat (limited to 'chapter08/kernel.xml')
| -rw-r--r-- | chapter08/kernel.xml | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/chapter08/kernel.xml b/chapter08/kernel.xml index 6c5123ee0..41f658c04 100644 --- a/chapter08/kernel.xml +++ b/chapter08/kernel.xml @@ -64,8 +64,9 @@ scratch.</para> the <quote>File systems</quote> menu and is normally enabled by default.</para> <para>LFS bootscripts make the assumption that you either compile -"USB device filesystem" directly into the kernel, or don't compile it at -all. They will not work properly if it is a module (usbcore.ko).</para> +both "Support for Host-side USB" and +"USB device filesystem" directly into the kernel, or don't compile them at +all. Bootscripts will not work properly if it is a module (usbcore.ko).</para> <note><para>NPTL requires the kernel to be compiled with GCC 3.x, in this case &gcc-version;. Compiling with 2.95.x is known to cause failures in the glibc @@ -76,16 +77,35 @@ unless you know what you're getting yourself into.</para></note> <screen><userinput>make</userinput></screen> -<para>If you intend to use kernel modules, you will need an +<para>If you intend to use kernel modules, you may need an <filename>/etc/modprobe.conf</filename> file. Information pertaining to modules and to kernel configuration in general may be found in the kernel documentation, which is found in the -<filename>linux-&linux-version;/Documentation</filename> directory. The -modules.conf man page and the kernel HOWTO at -<ulink url="http://www.tldp.org/HOWTO/Kernel-HOWTO.html"/> may also be of +<filename>linux-&linux-version;/Documentation</filename> directory. +The +modprobe.conf man page +<!-- removed for review from tldp.org +and the kernel HOWTO at +<ulink url="http://www.tldp.org/HOWTO/Kernel-HOWTO.html"/> --> +may also be of interest to you.</para> -<para>Install the modules:</para> +<para>Be very suspicious while reading other documentation, because it +usually applies to 2.4.x kernels only. As far as the editors know, kernel +configuration issues specific to Hotplug and Udev +are documented nowhere. The problem is that Udev will create a device node +only if Hotplug or a user-written script inserts the corresponding module +into the kernel, and not all modules are detectable by Hotplug. Note +that statements like +<screen>alias char-major-XXX some-module</screen> +in <filename>/etc/modprobe.conf</filename> file don't work with +Udev, and other aliases are often unnecessary with Hotplug.</para> + +<para>Because of all those compilcations with Hotplug, Udev and modules, we +strongly recommend you to start with a completely non-modular kernel +configuration, especially if this is the first time you use Udev.</para> + +<para>Install the modules, if your kernel configuration uses them:</para> <screen><userinput>make modules_install</userinput></screen> |