Full documentation for GRUB2

[Robert Wolf]

Hallo,

I would like to study GRUB2 and I wanted to find all modules description, all 
commands and all environment variables, but some commands and modules and 
variables description are missing in the documentation at URL 
http://www.gnu.org/software/grub/manual/grub.html.

I had to study /etc/grub.d scripts to find out:

* GRUB_TIMEOUT is environment variable "timeout"

* GRUB_DEFAULT is environment variable "default"

* Hidden menu is created using "sleep" and "keystatus" command, sleep is not 
mentioned in the official documentation (I found the description on site 
http://members.iinet.net/~herman546/p20/GRUB2%20CLI%20Mode%20Commands.html and 
http://grub.enbug.org/FranklinPiat/grub.cfg.manpage).


There is no documentation on the available modules, only some of them are 
documented in examples, Franklin Piat has made the page 
http://grub.enbug.org/FranklinPiat/grub_modules.manpage but as stated "This 
documentation isn't updated anymore (since grub2-1.96+20080203 approximately)".


Is there some complete official documentation of GRUB2, or is GRUB2 full
documentation only in source code?;-)


Thank you for info.

Regards,

Robert Wolf.