3 �<�e:e�@s�ddlmZddlTddlZddlmZddlmZddlj Z ddl Z ddlZddlZddl mZejj�ZGdd �d ej�ZdS) �)�base)�*�N)� exceptions)�commands)�sleepcs�eZdZdZ�fdd�Zdd�Zdd�Zedd ��Ze d[dd��Z e d d��Zdd�Zdd�Z iifdd�Zdd�Zdd�Zdd�Zdd�Zdd�Zdd �Zd!d"�Zejfd#d$�Zd%d&�Zd'd(�Zd)d*�Zd+d,�Zd-d.�Zd/d0�Zd1d2�Zd3d4�Z d5d6�Z!d7d8�Z"d9d:�Z#d;d<�Z$d=d>�Z%d?d@�Z&e'dA�dBdC��Z(e'dD�dEdF��Z)e'dG�dHdI��Z*e'dJdKdLdM�dNdO��Z+e'dPdKdLdM�dQdR��Z,e'dSdKdLdM�dTdU��Z-e'dVdKdLdM�dWdX��Z.dYdZ�Z/�Z0S)\�BootloaderPlugina� `bootloader`:: Adds options to the kernel command line. This plug-in supports the GRUB 2 boot loader and the Boot Loader Specification (BLS). + NOTE: *TuneD* will not remove or replace kernel command line parameters added via other methods like *grubby*. *TuneD* will manage the kernel command line parameters added via *TuneD*. Please refer to your platform bootloader documentation about how to identify and manage kernel command line parameters set outside of *TuneD*. + Customized non-standard location of the GRUB 2 configuration file can be specified by the [option]`grub2_cfg_file` option. + The kernel options are added to the current GRUB configuration and its templates. Reboot the system for the kernel option to take effect. + Switching to another profile or manually stopping the `tuned` service removes the additional options. If you shut down or reboot the system, the kernel options persist in the [filename]`grub.cfg` file and grub environment files. + The kernel options can be specified by the following syntax: + [subs="+quotes,+macros"] ---- cmdline__suffix__=__arg1__ __arg2__ ... __argN__ ---- + Or with an alternative, but equivalent syntax: + [subs="+quotes,+macros"] ---- cmdline__suffix__=+__arg1__ __arg2__ ... __argN__ ---- + Where __suffix__ can be arbitrary (even empty) alphanumeric string which should be unique across all loaded profiles. It is recommended to use the profile name as the __suffix__ (for example, [option]`cmdline_my_profile`). If there are multiple [option]`cmdline` options with the same suffix, during the profile load/merge the value which was assigned previously will be used. This is the same behavior as any other plug-in options. The final kernel command line is constructed by concatenating all the resulting [option]`cmdline` options. + It is also possible to remove kernel options by the following syntax: + [subs="+quotes,+macros"] ---- cmdline__suffix__=-__arg1__ __arg2__ ... __argN__ ---- + Such kernel options will not be concatenated and thus removed during the final kernel command line construction. + .Modifying the kernel command line ==== For example, to add the [option]`quiet` kernel option to a *TuneD* profile, include the following lines in the [filename]`tuned.conf` file: ---- [bootloader] cmdline_my_profile=+quiet ---- An example of a custom profile `my_profile` that adds the [option]`isolcpus=2` option to the kernel command line: ---- [bootloader] cmdline_my_profile=isolcpus=2 ---- An example of a custom profile `my_profile` that removes the [option]`rhgb quiet` options from the kernel command line (if previously added by *TuneD*): ---- [bootloader] cmdline_my_profile=-rhgb quiet ---- ==== + .Modifying the kernel command line, example with inheritance ==== For example, to add the [option]`rhgb quiet` kernel options to a *TuneD* profile `profile_1`: ---- [bootloader] cmdline_profile_1=+rhgb quiet ---- In the child profile `profile_2` drop the [option]`quiet` option from the kernel command line: ---- [main] include=profile_1 [bootloader] cmdline_profile_2=-quiet ---- The final kernel command line will be [option]`rhgb`. In case the same [option]`cmdline` suffix as in the `profile_1` is used: ---- [main] include=profile_1 [bootloader] cmdline_profile_1=-quiet ---- It will result in the empty kernel command line because the merge executes and the [option]`cmdline_profile_1` gets redefined to just [option]`-quiet`. Thus there is nothing to remove in the final kernel command line processing. ==== + The [option]`initrd_add_img=IMAGE` adds an initrd overlay file `IMAGE`. If the `IMAGE` file name begins with '/', the absolute path is used. Otherwise, the current profile directory is used as the base directory for the `IMAGE`. + The [option]`initrd_add_dir=DIR` creates an initrd image from the directory `DIR` and adds the resulting image as an overlay. If the `DIR` directory name begins with '/', the absolute path is used. Otherwise, the current profile directory is used as the base directory for the `DIR`. + The [option]`initrd_dst_img=PATHNAME` sets the name and location of the resulting initrd image. Typically, it is not necessary to use this option. By default, the location of initrd images is `/boot` and the name of the image is taken as the basename of `IMAGE` or `DIR`. This can be overridden by setting [option]`initrd_dst_img`. + The [option]`initrd_remove_dir=VALUE` removes the source directory from which the initrd image was built if `VALUE` is true. Only 'y', 'yes', 't', 'true' and '1' (case insensitive) are accepted as true values for this option. Other values are interpreted as false. + .Adding an overlay initrd image ==== ---- [bootloader] initrd_remove_dir=True initrd_add_dir=/tmp/tuned-initrd.img ---- This creates an initrd image from the `/tmp/tuned-initrd.img` directory and and then removes the `tuned-initrd.img` directory from `/tmp`. ==== + The [option]`skip_grub_config=VALUE` does not change grub configuration if `VALUE` is true. However, [option]`cmdline` options are still processed, and the result is used to verify the current cmdline. 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