--hostonly-cmdline:
Store kernel command line arguments needed in the initramfs
--no-hostonly-cmdline:
Do not store kernel command line arguments needed in the initramfs
if i18n_install_all is set to "yes", then install all keyboard layouts
and fonts regardless of the hostonly setting.
This way, people can switch keyboard layouts, without having to recreate
the initramfs.
This also changes the command line switch to be --add-device and the
config directive is set to add_device. This was chosen as device= in the
config file seems too generic and not quite as consistent with other
directives (i.e. drivers/add_drivers)
The --device command line is still supported but it should be considered
deprecated in favour of --add-device.