tldr/pages/linux/grubby.md

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