How do I automatically add kernel parameters into grub.conf?

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To automatically add kernel boot parameters to the kernel lines in grub.conf simply run the following command:

grubby --update-kernel=ALL --args=$KERNEL_ARGS

The $KERNEL_ARGS is a list of options passed to the kernel, such as vga=xxx, noapic or serial=ttyS0,9600 or any other valid kernel options.

The --update-kernel=ALL adds the list of arguments to every ...

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