[manjaro Desktop]# manjaro-chroot -a
grub-probe: error: cannot find a GRUB drive for /dev/sdb1.  Check your device.map.
grub-probe: error: cannot find a GRUB drive for /dev/sdb1.  Check your device.map.
==> Mounting (ManjaroLinux) [/dev/sda6]
 --> mount: [/mnt]
 --> mount: [/mnt/home]


[manjaro /]# mhwd-kernel -li
Currently running: 6.12.21-4-MANJARO (linux612)
The following kernels are installed in your system:
error: could not open file /var/lib/pacman/local/linux66-headers-6.6.85-2/desc: No such file or directory
   * linux61
   * linux66
error: could not open file /var/lib/pacman/local/linux66-headers-6.6.85-2/desc: No such file or directory


[manjaro /]# ls /etc/mkinitcpio.d/*.preset
ls: cannot access '/etc/mkinitcpio.d/*.preset': No such file or directory


[manjaro /]# ls /boot
grub             linux61-x86_64.kver  memtest86+
intel-ucode.img  linux66-x86_64.kver  vmlinuz-5.4-x86_64


[manjaro /]# ls /lib/modules
6.1.132-1-MANJARO  6.6.85-2-MANJARO  backup