A faulty SATA cable has caused an annoying issue with my F34 boot process.
To be specific, 2 weeks ago I decided to upgrade my F33 to F34.
It seems that during the upgrade process something went wrong with the kernel installation and since then I cannot boot with the fresh installed F34 kernel.
Below you can see some screenshots from the boot process:
As a workaround, I am using the previous F33 kernel in order to boot the PC.
I was wondering if I can rebuild somehow the grub menu and the corresponding /boot filesystem.
That screenshot looks like you have a grub theme installed/active. It is possible that a grub theme that works in F33 may have issues when booting with F34.