Hardening kernel switching method by running list update

[igorpecovnik]

Description

We are updating beta packages repository quite often. In order to make sure, update won't break, always update package list when trying to change kernels.

• also fixed ZFS kernel version matching

Testing Procedure

• Changing few kernels up and down

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have ensured that my changes do not introduce new warnings or errors
• No new external dependencies are included
• Changes have been tested and verified
• I have included necessary metadata in the code, including associative arrays