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