Rocky Linux LIVE CD Tips
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Stop having to used the dang SUDO command all the time

su - root

Reconfigure the GRUB.CFG File

NOPE! (ain't no -c switch anymore): grub2-mkconfig -o /tmp/sda1/grub2/grub.cfg -c /tmp/sda2/etc/default/grub have to run the above command with just the -o switch and make sure /etc/default contains a file named GRUB with the appropriate parameters.