You should not run 'lilo'.
IF you use(d) lilo as a boot manager, when updating the lilo configuration files,
you run 'lilo' at the prompt to make the changes on the MBR.
Grub or Lilo is personal preference. If Grub is working well for you, there should
be no reason for you to change.
Hope that answers your quesiton.
-tw
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