initramfs-4.18.0-305.19.1.el8_4.x86_64.img not found

I get the following error message when i reboot my CentOS 8 system and let grub choose the first boot entry: "initramfs-4.18.0-305.19.1.el8_4.x86_64.img" not found:

When i choose the second boot entry, im able to boot & login per ssh. The "rescue" grub entry is dead too, i dont know how this could happen:

How can i fix the broken entrys and be able to start the newest available kernel?

I have tried to remove & re-install the kernel with: yum remove kernel-4.18.0-305.19.1.el8_4.x86_64 & yum update

How can i build with dracut a new initramfs image with the missing kernel?

The solution was as simple as though.

• Boot with a kernel that works (Press [ESC] to see available boot entrys on startup)
• Rebuild initramfs with dracut

dracut /boot/initramfs-4.18.0-305.19.1.el8_4.x86_64.img 4.18.0-305.19.1.el8_4.x86_64

Login, and see if the right kernel is running:

uname -r
4.18.0-305.19.1.el8_4.x86_64