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I see that in various Linux distributions different options/variables are used in /etc/default/grub. This might be because of different versions of grub2 used (I might be wrong?) On the net I can find distro specific documentation, like for gentoo. I was wondering if there is something like a manpage, included with the system, documenting which options are recognized in /etc/default/grub and what they do.

Edit: I found the online docu myself. Still I am wondering if I can find that info on the system without visiting the net.

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The Arch Wiki is an excellent resource for all things Linux. It is of course tailored for the Arch distribution but nonetheless a good portion of the information carries over to all distributions.

Arch Wiki GRUB

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