Developed kernel management utilities for the avocado-framework/avocado-vt repository, focusing on enhancing Linux guest kernel handling within virtualized system testing environments. The work introduced Python-based utilities that automate setting the default kernel, including an option for automated reboots, and enable pattern-based discovery of available kernel files. This approach reduced manual intervention in kernel configuration and improved the reliability and coverage of kernel-related tests. Leveraging skills in Linux kernel management, virtualization, and system testing, the utilities provided clearer test scoping and streamlined automation for kernel operations, contributing to more robust and maintainable test workflows without addressing bug fixes during the period.