tldr/pages/linux/grubby.md

# grubby

> Tool for configuring `grub` and `zipl` bootloaders.
> More information: <https://manned.org/grubby.8>.

- Add kernel boot arguments to all kernel menu entries:

`sudo grubby --update-kernel=ALL --args '{{quiet console=ttyS0}}'`

- Remove existing arguments from the entry for the default kernel:

`sudo grubby --update-kernel=DEFAULT --remove-args {{quiet}}`

- List all kernel menu entries:

`sudo grubby --info=ALL`