I just found a thread about this 
But apparently I have no kernels installed, and can’t install them using mhwd-kernel
[manjaro /]# ls -l /boot
total 7200
drwxr-xr-x 3 root root 4096 Dec 31 1969 efi
drwxr-xr-x 6 root root 4096 Nov 15 15:38 grub
-rw-r--r-- 1 root root 7360512 Aug 8 15:19 intel-ucode.img
drwxr-xr-x 2 root root 4096 Jul 28 17:41 memtest86+