SUMMARY

Since a few weeks, KDE Neon doesn't boot from the boot disk where the operating system is installed. Instead, it keeps booting in a loop and displaying the message "reset system" in the upper left corner of the screen. After accessing the boot menu, I noticed that the system tries to boot from a USB drive as first priority even though there is none. I then try to change the first priority to my NVME drive with KDE Neon installed, save the changes and boot. This way I boot KDE Neon without problems, but every time I shut down my laptop, I have to repeat the same process. As a side note, every time I follow these steps and once in KDE Neon, Discover suggests I install "UEFI dbx" to version 217. Also add that I have no dual boot set up and only use KDE Neon as my primary OS.

STEPS TO REPRODUCE

1. Start the computer.
2. After several seconds of booting in a loop, access the boot menu.
3. Once in the menu, change to "NVME: ubuntu" as the first boot priority instead of "USB Key".
4. Save the changes and boot.
5. Once in KDE Neon, shut down the computer.

OBSERVED RESULT

The computer takes a few seconds to boot up and the boot loop repeats again, trying to detect KDE Neon on a USB key.

EXPECTED RESULT

Boot KDE Neon from the hard drive or NVME drive.

SOFTWARE/OS VERSIONS

Operating System: KDE Neon 5.26 (User Edtion)
KDE Plasma Version: 5.26.0
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6

ADDITIONAL INFORMATION

Every time I manage to boot KDE Neon, Discover asks me to update UEFI dbx to version 217. Once updated, I turn off the computer and the problem with booting persists, asking again to update UEFI dbx.