Re: [PATCH] doc: document config_directory and config_file variables

[Andrei Borzenkov <arvidjaar@gmail.com>]

07.11.2015 22:51, Arbiel (gmx) пишет:
> Hi
>
> There seems to be other variables and command parameters which lack
> documentation.
>
> Here is a list of such variables found in my grub.cfg files (I have
> discarded "save_env"ed variables, obviously environment variables) and
> which are not set in the environment block
>
> ${feature_menuentry_id}
> ${boot_once}
> $feature_all_video_module
> $feature_default_font_path
> $feature_platform_search_hint
> $feature_timeout_style

I do not not think any of them need to be documented in user manual. 
Features are of interest to developers to ensure backward compatibility; 
users start off with a given version and need not usually care if it 
works in earlier ones. $boot_once is internal implementation variable 
that is of no interest to anyone and its purpose is obvious by reading 
script.

It's fine to describe them in developers documentation of course, but so 
far nobody volunteered to maintain it.

> $match
>
> As the names suggest, these variables could be distribution specific
> (Ubuntu). What do you think ?
>
> undocumented command parameter : --hint (command search), and some other
> --hint.something which I haven't been able to localise just now.
>

Which command?

> I found in my grub.cfg file a "hwmatch" command which is not defifed as
> a function. Is this a undocumented grub command ? Its result may well
> the  $match variable.
>

Both are Ubuntu (or may be Debian) specific.