grubby
Tool for configuring grub and zipl bootloaders. tldr-pages
On Linux
Linux
Add kernel boot arguments to all kernel menu entries
sudo grubby --update-kernel=ALL --args 'quiet console=ttyS0'IdentifyRemove existing arguments from the entry for the default kernel
sudo grubby --update-kernel=DEFAULT --remove-args quietIdentifyList all kernel menu entries
sudo grubby --info=ALLIdentify