Attachment 306623 Details for Bug 408691 – Patch for kernel configuration

[patch] Patch for kernel configuration

hb-install-x86+amd64-kernel.patch (text/plain), 2.31 KB, created by Sven Vermeulen (RETIRED) on 2012-03-25 17:31:24 UTC

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Creator: Sven Vermeulen (RETIRED)

Created: 2012-03-25 17:31:24 UTC

Size: 2.31 KB

patch

obsolete

>Index: hb-install-x86+amd64-kernel.xml
>===================================================================
>RCS file: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-x86+amd64-kernel.xml,v
>retrieving revision 1.45
>diff -u -B -r1.45 hb-install-x86+amd64-kernel.xml
>--- hb-install-x86+amd64-kernel.xml	22 Feb 2012 21:27:45 -0000	1.45
>+++ hb-install-x86+amd64-kernel.xml	25 Mar 2012 17:30:10 -0000
>@@ -342,6 +342,59 @@
> # cp arch/<keyval id="arch-sub"/>/boot/bzImage /boot/<keyval id="kernel-name"/>
> </pre>
> 
>+</body>
>+</subsection>
>+<subsection id="initramfs">
>+<title>(Optional) Building an Initramfs</title>
>+<body>
>+
>+
>+If you use a specific partition layout where important file system locations
>+(like <path>/usr</path> or <path>/var</path>) are on separate partitions, then
>+you will need to setup an initramfs so that this partition can be mounted before
>+it is needed.
>+
>+
>+
>+Without an initramfs, you risk that the system will not boot up properly as the
>+tools that are responsible for mounting the file systems need information that
>+resides on those file systems. An initramfs will pull in the necessary files
>+into an archive which is used right after the kernel boots, but before the
>+control is handed over to the <c>init</c> tool. Scripts on the initramfs will
>+then make sure that the partitions are properly mounted before the system
>+continues booting.
>+
>+
>+
>+To install an initramfs, install <c>genkernel</c> first, then have it 
>+generate an initramfs for you.
>+
>+
>+<pre caption="Building an initramfs">
>+# emerge genkernel
>+# genkernel --install initramfs
>+</pre>
>+
>+
>+If you need specific support in the initramfs, such as lvm or raid, add in the
>+appropriate options to genkernel. See <c>genkernel --help</c> for more
>+information, or the next example which enables support for LVM and software raid
>+(mdadm):
>+
>+
>+<pre caption="Building an initramfs with support for LVM and software raid">
>+# genkernel --lvm --mdadm --install initramfs
>+</pre>
>+
>+
>+The initramfs will be stored in <path>/boot</path>. You can find the file by
>+simply listing the files starting with <path>initramfs</path>:
>+
>+
>+<pre caption="Checking the initramfs file name">
>+# ls /boot/initramfs*
>+</pre>
>+
> 
> Now continue with <uri link="#kernel_modules">Kernel Modules</uri>.
>

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