Configure the Kernel - Revision history

Gr0x0rd: /* Configure hardware drivers */

2011-05-11T04:42:34Z

Configure hardware drivers

Gr0x0rd: /* Configure additional peripherals */

2011-05-10T15:10:48Z

Configure additional peripherals

Gr0x0rd: /* Identifying hardware components */

2011-01-07T21:50:19Z

Identifying hardware components

Gr0x0rd: /* Other Recommended Options */

2010-12-11T20:37:48Z

Other Recommended Options

Gr0x0rd: /* Other Recommended Options */

2010-12-11T20:37:28Z

Other Recommended Options

Gr0x0rd: /* Other Recommended Options */

2010-12-04T01:29:06Z

Other Recommended Options

Gr0x0rd: /* Installing Gentoo - Configure the Kernel */

2010-12-04T01:12:06Z

Installing Gentoo - Configure the Kernel

Gr0x0rd: /* Building the Kernel */

2010-12-01T23:03:09Z

Building the Kernel

Gr0x0rd: /* Installing Gentoo - Configure the Kernel */

2010-12-01T22:55:19Z

Installing Gentoo - Configure the Kernel

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Gr0x0rd: /* Configure Processor Type and Features */

2010-12-01T22:53:31Z

Configure Processor Type and Features

← Older revision		Revision as of 04:42, 11 May 2011
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	We have now enabled the kernel drivers needed for our system's hardware. As mentioned at the beginning of this section, this is the most difficult part of the Gentoo Linux installation, especially for first timers. Chances are you will get stuck when booting into your new kernel for the first time, which is why there is a step-by-step guide in the [[Troubleshooting]] section.		We have now enabled the kernel drivers needed for our system's hardware. As mentioned at the beginning of this section, this is the most difficult part of the Gentoo Linux installation, especially for first timers. Chances are you will get stuck when booting into your new kernel for the first time, which is why there is a step-by-step guide in the [[Troubleshooting]] section.

		+	'''Optional: RAID'''
		+
		+	If you are using RAID, you'll need to build support into the kernel.
		+	Device Drivers --->
		+	Multi-device support (RAID and LVM) --->
		+	[*] Multiple devices driver support (RAID and LVM)
		+	<*> RAID support
		+	<*> RAID-0 (striping) mode
		+	<*> RAID-1 (mirroring) mode
		+	<*> RAID-4/RAID5/RAID6 mode
		+	<*> Device mapper support

	===Configure Processor Type and Features===		===Configure Processor Type and Features===

@@ Line 214: / Line 214: @@
 ===Configure additional peripherals===
 If your system has a wireless device, you'll want to make sure you've enabled the wireless networking options.
   [*] Networking support  --->
@@ Line 223: / Line 236: @@
    Input device support  --->
     <*>   Joystick interface
 ===Other Recommended Options===

@@ Line 19: / Line 19: @@
 ===Identifying hardware components===
-To identify the hardware components in our system, we'll use a tool called ''pciutils''.
+To identify the hardware components in our system, we'll use a tool called ''lspci'', which is part of the ''pciutils'' package.
   '''#''' lspci -v | more
 Previously, when configuring the kernel, you'd have to make note of each hardware device, and hunt through the "Device Drivers" section of the kernel to try to enable the necessary drivers for your hardware. Thanks to the work of Pappy and others, this process is easier now. As explained on the kernel-seeds [http://kernel-seeds.org/working.html website], you can use pciutils to return the numeric ID's for your hardware.
@@ Line 81: / Line 79: @@
 c0013 Yes Atheros Communications  Atheros AR5001X+ Wireless Network Adapter                  '''ath5k'''         v2.6.25-
   11063044 Yes VIA Technologies, Inc.  VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller          '''ohci1394'''
 ===Setting kernel values using menuconfig===

@@ Line 233: / Line 233: @@
 To enable CPU frequency scaling, which will allow your system to throttle your CPU if it's not in use, set the options below. This is especially useful in laptops, since less power consumption means less draw on your battery and longer battery life. Be sure to select the appropriate driver based on your CPU type.
   Power management and ACPI options  --->
- │      [*] Suspend to RAM and standby                                              │ │
+   [*] Suspend to RAM and standby
-  │ │      [*] Hibernation (aka 'suspend to disk')
+   [*] Hibernation (aka 'suspend to disk')
    CPU Frequency scaling  --->
     [*] CPU Frequency scaling

@@ Line 240: / Line 240: @@
     ...
     <*>   'powersave' governor
-    ...
+    <*>   'userspace' governor
     <*>   'ondemand' cpufreq policy governor
     ...

@@ Line 234: / Line 234: @@
 To enable CPU frequency scaling, which will allow your system to throttle your CPU if it's not in use, set the options below. This is especially useful in laptops, since less power consumption means less draw on your battery and longer battery life. Be sure to select the appropriate driver based on your CPU type.
   Power management and ACPI options  --->
    CPU Frequency scaling  --->
     [*] CPU Frequency scaling
@@ Line 282: / Line 284: @@
     <*>     PPP BSD-Compress compression
     <*>     PPP MPPE compression (encryption) (EXPERIMENTAL)
 ===Building the Kernel===

← Older revision		Revision as of 01:12, 4 December 2010
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	Thankfully, most of the hard part has already been done for you. Some time ago, an advocate by the name of Pappy McFae blessed us with "kernel seeds" for a number of different architectures which are freely available at his website, [http://kernel-seeds.org/ kernel-seeds.org]. His goal was to provide starting kernel configurations, geared towards everyday use, but with the unnecessary components removed. Using of of Pappy's kernel seeds, all you need do is add in the drivers for your specific hardware and any other components you may require. Personally, I noticed a performance of around 20% using one of Pappy's kernel seeds as compared to the default kernel configuration provided by the Gentoo devs.		Thankfully, most of the hard part has already been done for you. Some time ago, an advocate by the name of Pappy McFae blessed us with "kernel seeds" for a number of different architectures which are freely available at his website, [http://kernel-seeds.org/ kernel-seeds.org]. His goal was to provide starting kernel configurations, geared towards everyday use, but with the unnecessary components removed. Using of of Pappy's kernel seeds, all you need do is add in the drivers for your specific hardware and any other components you may require. Personally, I noticed a performance of around 20% using one of Pappy's kernel seeds as compared to the default kernel configuration provided by the Gentoo devs.
−
−
−	~~===Emerging the kernel source files===~~
−
−	~~Our first step will be to emerge the kernel source files and determine what version of the kernel we'll be using.~~
−	~~'''#''' emerge -av gentoo-sources~~
−	Make a note of the version that is emerged, which will usually be in the format ''2.6.x-gentoo-ry''. Here ''x'' represents the kernel version, and ''y'' represents the Gentoo release version of that particular kernel version. In this example we'll use the 64-bit instance of ''2.6.34-gentoo-r12'' as our example.

← Older revision		Revision as of 23:03, 1 December 2010
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	The kernel image file will be located in the path corresponding to your system's architecture: ''arch/x86_64/boot/bzImage'' for 64-bit systems and ''arch/x86/boot/bzImage'' for 32-bit systems. Once the kernel has finished compiling, you'll need to copy it to your boot partition. Since you mounted ''dev/sda1'' to /boot in a previous step, this is fairly easy.		The kernel image file will be located in the path corresponding to your system's architecture: ''arch/x86_64/boot/bzImage'' for 64-bit systems and ''arch/x86/boot/bzImage'' for 32-bit systems. Once the kernel has finished compiling, you'll need to copy it to your boot partition. Since you mounted ''dev/sda1'' to /boot in a previous step, this is fairly easy.
	'''#''' cp arch/x86_64/boot/bzImage /boot/kernel		'''#''' cp arch/x86_64/boot/bzImage /boot/kernel
		+	Now that the kernel is configured, compiled, and copied to the boot partition, we can move on to [[Configure fstab]].

@@ Line 163: / Line 163: @@
     (X) Core 2/newer Xeon
     ( ) Intel Atom
 ===Configure hardware drivers===