How to compile the Linux kernel

1. Download the required kernel version

2. Upload to the operating system

3. Unzip to the /usr/src directory

For example: 3.19 kernel

tar -xvf linux-3.19.tar.xz -C /usr/src

4. Create a connection

cd /usr/src

ln -sv /usr/src/linux-3.19 Linux

5. Perform kernel settings

cd /usr/src/linux

make menuconfig

In this step, it is best to copy a .config file that was run previously and make modifications to it, otherwise, the system may not be able to restart.

For example, the following:

cp /boot/config-3.10.0-123.el7.x86_64 /usr/src/linux/.config

6. Compile the kernel

make -- may take from 1 hour to 3 hours.

make modules_install

make install

7. Reboot.

Content Extension

Deploy kernel source code

Open the terminal and change the user privileges to root. The specific method is to enter sudo su in the terminal and then enter the password as prompted. To determine whether the user is the root user, use the whoami command. If the output is root, you have switched to the root account.

Enter mv linux-2.6.36.tar.gz /usr/src to move the downloaded kernel source code file to the /usr/src directory.

Enter cd /usr/src to switch to this directory.

Enter tar zxvf linux-2.6.36.tar.gz to decompress the kernel package and place the generated source code in the linux-2.6.36 directory.

Enter cd linux-2.6.36 to switch to this directory.

Enter cp /boot/config-, then press the Tab key. The system will automatically fill in the qualifying file name in the directory. Then continue to enter .config to use the original configuration file in the boot directory.

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