# error on boot after update: vmlinux not found

- https://chatgpt.com/c/67bee51f-6198-8004-9164-edb6c0d37c8f
- on manjaro linux, after yay -Syu i get error on boot: /boot/vmlinuz-6.11-x86_64 not found. you need to load kernel
  first.
  i do have a usb stick.

```bash
lsblk

# to check if you use EFI
ls /sys/firmware/efi
# If the command outputs files and directories, your system is using EFI.
# If the directory does not exist, your system is using BIOS.
```

- Summary of Steps (Quick Recap)
```bash
# Boot into the Manjaro Live USB
# Open a terminal and mount your system
sudo mount /dev/sda2 /mnt
sudo mount /dev/sda1 /mnt/boot/efi
# Enter chroot environment
sudo manjaro-chroot /mnt
# Reinstall the kernel
mhwd-kernel -i linux66 # Replace with your preferred kernel
# Reinstall GRUB for EFI and regenerate the config
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=manjaro
grub-mkconfig -o /boot/grub/grub.cfg
# done
exit
sudo reboot

```