On Thu, 13 Dec 2018 02:45:33 +1000
"Michael D. Setzer II" <mikes(a)guam.net> wrote:
Long ago Redhat and early Fedora versions had the option of pressing
the letter i at boot to have it request for loading of the individual
kernel options.
Perhaps that was LILO or original grub? I don't remember that
feature, but those seem more likely than it being in grub2.