Following discover upgrades to Kubuntu 24.10 on Jan 22 2025, upgraded laptop will not boot. 
The process would stop at the manufacturer splash screen Lenovo - no screenshot available


STEPS TO REPRODUCE
0. All steps with Lenovo Thinkpad P14s with AMD Ryzen 7 processor
1.  Reinstall  previous version of Linux via live CD/USB  using  24.04 LTS
2.  Modify upgrade policy to Normal instead of LTS
3. Reapply upgrade intending to get Version 24.10  via Discover but same problem with loop in the boot logic.

OBSERVED RESULT
Diagnostics of SDD and RAM show no underlying hardware errors

EXPECTED RESULT
Expected to obtain restored version 24.10  but failed on 2 attempts.


SOFTWARE/OS VERSIONS

Distributor ID: Ubuntu
Description:    Ubuntu 24.04.1 LTS
Release:        24.04
Codename:       noble


 Plasma specific
Operating System: Kubuntu 24.04
KDE Plasma Version: 5.27.11
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13
Kernel Version: 6.8.0-51-generic (64-bit)
Graphics Platform: X11
Processors: 16 × AMD Ryzen 7 PRO 4750U with Radeon Graphics
Memory: 13.4 GiB of RAM
Graphics Processor: AMD Radeon Graphics
Manufacturer: LENOVO
Product Name: 20Y1002GAU
System Version: ThinkPad P14s Gen 1


ADDITIONAL INFORMATION
1. Slow process to do re-installs. 
2. Not much informatoin availalbe on repair of grub configurations and the like.