Seems some went wrong when updating the kernel. Normally you should have same values. Seems it would be good if we come up with a graphical tool to fix those issues. For now you might need to chroot into your system and try to complete your system update and kernel installation.
It looks like somehow our Linux kernel went MIA. I recommend reinstalling it from chroot using a live ISO.
To do so:
Boot from a Live ISO, into the working Live ISO environment.
When successfully booted, open a terminal.
When the terminal has opened enter the chroot evironment by running:
Be careful from here on, you are now working as the root user on your installation.
Once you’ve successfully entered the chroot environment, you’ve got to find out which kernels Manjaro think is installed and remove them. To find out which kernels are installed, open a terminal and run:
For example, mine returns the following:
$ mhwd-kernel -li
Currently running: 5.10.23-1-MANJARO (linux510)
The following kernels are installed in your system:
Go ahead and remove all the kernels listed as installed there. This is done by running mhwd-kernel -r for every installed kernel. For example, minee would be:
mhwd-kenel -r linux54
mhwd-kernel -r lnux510
DO NOT REBOOT as there is now no kernel for it to use.
Now install a new kernel. I recommend version 5.10 as it’s the latest LTS version.
mhwd-kernel -i linux510
It is also recommended to install another one to use in case there is a problem with your default one, as just happened. I recommend 5.4 as this is the previous LTS version. Install it the same way you did above. In the terminal, run:
mhwd-kernel -i linux54
If done successfully, hold your thumbs, cross you heart, and reboot.