leapp upgrade fails after reboot if /etc/sysconfig/kernel is missing

What were you trying to do that didn't work?

Leapp upgrade RHEL7 -> RHEL8 fails after reboot (ending in emergency shell)

if /etc/sysconfig/kernel file is not found;

Please provide the package NVR for which bug is seen:

leapp-0.16.0-1.el7_9.noarch

How reproducible:

leapp preupgrade --target 8.8

leapp upgrade --target 8.8

Expected results

Inhibitor

Actual results

Upgrade fails ending in emergency shell after reboot