Ubuntu compilation and installation kernel tutorial.

Compiling and installing the Ubuntu kernel requires certain professional skills and practical experience. Here are the general steps, but please proceed with caution as this process may carry certain risks. Before you begin, be sure to back up important data and systems.

1. Get source code:

   • Visit Ubuntu official website (

     ) or the kernel developer website (

     ) Download the latest kernel source code.

   • Extract the source code to a suitable directory, such as
     /usr/src.

2. Install compilation dependencies:

   • Install the dependencies required to build the kernel. Open the terminal and execute the following command:

     sudo apt-get install build-essential libncurses-dev bison flex libssl-dev libelf-dev

3. Configure kernel:

   • Enter the kernel source code directory:

     cd /usr/src/linux-<version>

   • Copy the kernel configuration file currently being used by the system to the new kernel source code directory:

     sudo cp /boot/config-$(uname -r) .config

   • Execute the following command to enter the kernel configuration interface:

     sudo make menuconfig

     On this interface, you can configure and adjust kernel options as needed. Save the configuration and exit.

4. Compile kernel:

   • Execute the following command to start compiling the kernel:

     sudo make -j$(nproc)

     This will compile the kernel in parallel using all available CPU cores. This process may take a while, depending on system configuration and hardware performance.

5. Install kernel:

   • Execute the following command to install the compiled kernel:

     sudo make modules_install
     sudo make install

     This will install the kernel modules and kernel image files to the appropriate directories.

6. Update bootloader:

   • Execute the following command to update the boot loader (GRUB) configuration:

     sudo update-grub

7. Restart the system:

   • After completing the installation, restart your computer and select the newly installed kernel at boot time.

Please note that compiling and installing the kernel may have unforeseen effects on the system, and errors may be encountered during the process. It is recommended to conduct experiments in a test environment and make sure you have backup systems and data.

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