If the system was in the midst of an update, at least the kernel is now missing.
… first the to be updated kernel gets removed, then the update …, then the new initrd is created at the end interrupt the process and you end up with no initrd and kernel
This is easy to rectify: boot from live usb and chroot (manjaro-chroot -a) into your system and run the update again 0005login:Penguin2024/03/29(金) 07:23:14.06ID:ZbSlbJw0 mkinitcpio hook migration and early microcode
Ok, made the changes and run mkinicpio and grub-mkconfig.. rebooted, amd-ucode.img is no longer in initrd [grub] 0007login:Penguin2024/03/29(金) 07:42:43.98ID:ZbSlbJw0 I removed All_microcode and added microcode hook after autodetect. I run btrfs/grub/luks2 with secure boot and successfully booted without issues or errors.