So if I don’t run grub-mkconfig after kernel/grub updates, will it break anything?
(= will my experience remain the same after removing this package?)
Sorry for making a new topic 
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After kernel update: no need to run the command
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After additional kernels install: yes, you need to run the command for the new kernels to be added to Grub’s boot menu
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After Grub, the package, update, it is recommended to run:
- grub-install
- grub-mkconfig -o /boot/grub/grub.cfg
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Minor clarifications and nitpicking ():
- after kernel install: if you want to see the installed kernel in the boot menu, then grub-mkconfig (with proper options) need to be executed
- grub-install may require special parameters for your system in order to work properly
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Thanks everybody!
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What would happen if I don’t run these?
I’m on UEFI, which parameters would be need if existing?
If you have a fairly standard install then sudo grub-install --no-nvram would probably work.
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Most probably nothing.
The recommendation was added to the Grub posterior to the incidence when a change upstream rendered many systems unbootable. It might not happen again, but then it might. I believe that’s kind of a safe-guarding against this possibility.
You could read more about what caused the issue here:
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