Update the kernel:
1. Open the terminal, enter the command sudo yum update, and wait for the update to complete.
2. To restart the system, enter the command sudo reboot.
3. On the GRUB boot interface, select the latest kernel version and press Enter to enter the system.
4. Enter the command uname -r in the terminal to check whether the current kernel version is updated successfully.
Update software:
1. Open the terminal, enter the command sudo yum update, and wait for the update to complete.
2. Enter the command sudo yum list installed to view the list of installed software.
3. Enter the command sudo yum info software name to view detailed information about the specified software.
4. Enter the command sudo yum install software name to install the specified software.
5. Enter the command sudo yum remove software name to uninstall the specified software.
6. Enter the command sudo yum clean all to clear the cache and temporary files and free up disk space.
7. Enter the command sudo yum check-update to check for available updates.
8. Enter the command sudo yum update software name to update the installed specified software.
9. Enter the command sudo yum upgrade to update all software to the latest version.
Test environment: Centos7.6 system - server from: Lanyiyun
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Detailed evaluation article: