When turning on the Laptop, the initial screen with the HP Logo (with the message press Esc for setup) will go into a loop. After the timeout for entering the Bios setup, it reset the system and it start over again. The System will not boot the EFI Partition.
My workaround is to press F9 for Boot device, choose Ubuntu EFI and it start up without an issue.
There is only Ubuntu Studio installed, no other System beside.
This happen after a patch update, but I can't make it which one it was, but somewhere after Summer. I hope that this would be fixed with an upcoming patch, but it wasn't.
System: HP Elitebook 8470p, Ubuntu Studio 22.04.1 LTS.
F9 Options
F10 Setup
Edit:
The EFI Partition looks like this:
root@8470p:/boot/efi/EFI# ll
total 20
drwx------ 5 root root 4096 Nov 18 09:50 ./
drwx------ 3 root root 4096 Jan 1 1970 ../
drwx------ 2 root root 4096 Nov 11 10:28 BOOT/
drwx------ 2 root root 4096 Apr 6 2022 BOOT_bak/
drwx------ 2 root root 4096 Apr 6 2022 ubuntu/
root@8470p:/boot/efi/EFI# ll ubuntu/
total 3496
drwx------ 2 root root 4096 Apr 6 2022 ./
drwx------ 5 root root 4096 Nov 18 09:50 ../
-rwx------ 1 root root 108 Nov 11 10:28 BOOTX64.CSV*
-rwx------ 1 root root 126 Nov 11 10:28 grub.cfg*
-rwx------ 1 root root 1742728 Nov 11 10:28 grubx64.efi*
-rwx------ 1 root root 856232 Nov 11 10:28 mmx64.efi*
-rwx------ 1 root root 955656 Nov 11 10:28 shimx64.efi*
root@8470p:/boot/efi/EFI# ll BOOT/
total 3580
drwx------ 2 root root 4096 Nov 11 10:28 ./
drwx------ 5 root root 4096 Nov 18 09:50 ../
-rwx------ 1 root root 108 Apr 21 2022 BOOTX64.CSV*
-rwx------ 1 root root 955656 Nov 11 10:28 bootx64.efi*
-rwx------ 1 root root 85672 Nov 11 10:28 fbx64.efi*
-rwx------ 1 root root 126 Apr 21 2022 grub.cfg*
-rwx------ 1 root root 1742728 Apr 21 2022 grubx64.efi*
-rwx------ 1 root root 856232 Nov 11 10:28 mmx64.efi*
root@8470p:/boot/efi/EFI# ll BOOT_bak/
total 1868
drwx------ 2 root root 4096 Apr 6 2022 ./
drwx------ 5 root root 4096 Nov 18 09:50 ../
-rwx------ 1 root root 955656 Apr 19 2022 BOOTX64.EFI*
-rwx------ 1 root root 85672 Apr 19 2022 fbx64.efi*
-rwx------ 1 root root 856232 Apr 19 2022 mmx64.efi*
root@8470p:/boot/efi/EFI#
I am not fimilar with this. But If i compare the dates of the files, It seems that something is wrong...
