[Reprinted for backup] Linux kernel Compilation

[Reprint backup] source file address: http://www.kerneltravel.net /? P = 72

 

 

Step 1 install necessary tools

Install necessary packages first.
Includes: libncurses5-dev (required by menuconfig) and essential
Sudo apt-get install build-essential kernel-package
Sudo apt-get install make
Sudo apt-get install gcc
In addition, check whether the system has two such commands
Mkinitramfs mkisofs
These two tools are used to generate *. imgfile during kernel compilation. If not, install it.

Step 2 download the kernel

Download the new kernel to/usr/src at www.kernel.org.
What I download is linux-2.6.24.tar.gz (the original kernel is 2.6.20-15-generic)

Step 3 preparations before Compilation

View the current kernel version
Helight @ helight-desktop:/$ uname-

Linux helight-desktop 2.6.20-15-generic #1 SMP Mon Aug 25 17:32:09 UTC 2008 i686 GNU/Linux

Helight @ helight-desktop:/$

 

We recommend that you download a kernel higher than the current version.

Decompress linux-2.6.24.tar.gz to linux-2.6.24
Cd/usr/src

Sudo tar zxvf linux-2.6.24.tar

Cd linux-2.6.24/

Step 4 start Compilation

Cd/usr/src/linux-2.6.24 // all of the following work is done under/usr/src/linux-2.6.24
Sudo make menuconfig // Ncurses is required if menuconfig is used, or
Sudo make xconfig

Sudo make menuconfig // menuconfig is generally used

 

Save after configuration (A Kernel configuration file saved in the system is named. config under/usr/src/linux-2.6.24, you can save it elsewhere)
You can also cp the original config-2.6.xx in the/boot directory to the current directory, in make menuconfig is to use this configuration file.
Sudo make dep // maybe the system will prompt that make dep is unnecessary now, so I will not use the next 2.6.24 compilation.
Sudo make clean // clear the old data. This step is not required for the unzipped kernel source code.

Sudo make-j2 can be compiled in two threads, but I used make-j4 to find that nine make processes are working in the system. Therefore, this parameter may not work.
Sudo make bzImage // compile the kernel and save it to/usr/src/linux-2.6.24/arch/i386/boot/
Sudo make modules // compilation Module
Sudo make modules_install // installation Module
Sudo mkinitramfs-o/boot/initrd-2.6.24.img 2.6.24

At this time, you may be prompted to not find such a folder "/lib/firmware/2.6.24". You need to create such a folder manually.

Sudo mkdir/lib/firmware/2.6.24
Sudo make install // install the kernel

After the installation is complete, add the following files under/boot (use ls-l * 24 * to view the files)

Helight @ helight-desktop:/boot $ ls-l * 24 *

-Rw-r-1 root 85203 config-2.6.24

-Rw-r-1 root 85203 config-2.6.24.old

-Rw-r-1 root 37968871 initrd-2.6.24.img

-Rw-r-1 root 4014080 initrd. img-2.6.24

-Rw-r-1 root 932315 System. map-2.6.24

-Rw-r-1 root 932315 System. map-2.6.24.old

-Rw-r-1 root 1858864 vmlinuz-2.6.24

-Rw-r-1 root 1858864 vmlinuz-2.6.24.old

Helight @ helight-desktop:/boot $

Add a new startup Item to/boot/grub/menu. lst. For example, add the following text to my menu. lst:

Title Ubuntu, kernel 2.6.24

Root (hd0, 0)

Kernel/boot/vmlinuz-2.6.24root = UUID = d7e2cf74-ebf5-4c78-ac2c-9f85a9809eae ro

Initrd/boot/initrd-2.6.24.img

Restart.