I executed all the commands you recommended. All of them returned references to v6 kernels except the second one, which returned:
[david@OptiplexManjaro ~]$ sudo ls /etc/mkinitcpio.d/*.preset
/etc/mkinitcpio.d/linux518.preset /etc/mkinitcpio.d/linux60.preset
/etc/mkinitcpio.d/linux519.preset /etc/mkinitcpio.d/linux61.preset
Can I assume that all I have to do is delete the v5 referenced files to correct my issue?
Any idea why installing the v6 kernels and removing the v5 kernels would have left the .preset files in place for v5?
Just remove the old presets from /etc/mkinitcpio.d/. They’re left over purposely in case one removes a kernel then later reinstalls it so the same settings are intact.
I have been using Manjaro for many years now, and have upgraded the kernel multiple times on multiple computers. This is the first time I have ever seen the error message I got.
If these .preset files are always present after a kernel upgrade, what could have happened that created the error this time that didn’t happen all the other times I upgraded the kernel?
That’s a good question. It’s happened to me on my old Dell laptop, but not on my newer System76 laptops. I just did what @stephane mentioned above it everything was fine. I never did figure out why.
I can confirm your error. On my new hardware linux5.15 has no wifi, so I uninstalled it. Then found no pacsave and looked into mkinitcpio.d and found linux5.15 still present.
Thought it was just a hic-up.
Edit
Yesterday I uninstalled linux6.0 and the file in mkinitcpio.d remained present.
So it is not only a hic-up.