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Re: GRUB_GFXMODE= 60 refresh how?

From: Arbiel Perlacremaz
Subject: Re: GRUB_GFXMODE= 60 refresh how?
Date: Sun, 04 May 2014 12:26:10 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0


grub (legacy) and grub2 are bootloaders. As such, they stand outside of any system and so, there is no reason to find any man page relative to these pieces of software.

You will find manpages for commands running under the control of the system, as grub-install, grub-mkconfig, …

As for grub.cfg, this has to be seen as a script written in grub's language, of which specifications are to be found at


Le 03/05/2014 10:18, Felix Miata a écrit
On 2014-05-03 12:00 (GMT+0400) Andrey Borzenkov composed:

Sat, 03 May 2014 01:22:19 -0400 Felix Miata composed:

On 2014-05-03 07:51 (GMT+0400) Andrey Borzenkov composed:

> Fri, 02 May 2014 18:37:44 -0400> Felix Miata composed:

>> Fedora 20
>> # man grub
>> No manual entry for grub
>> # man grub2
>> No manual entry for grub2

>> Searching with Google for GRUB_GFXMODE= where how to designate appropriate refresh >> rate comes up empty, always with either just HxV or HxVxBits. How does one get >> Grub2's boot menu to produce the Grub Legacy equivalent of having address@hidden
>> on boot stanza cmdline?

> Does adding address@hidden to kernel command line in grub2 not work?

It works, but what is GRUB_GFXMODE for if not to take the place either it and/or vga=791?

No, grub2 does not support setting refresh rate.

If neither GRUB_GFXPAYLOAD_LINUX nor GRUB_GFXMODE can provide a known *supported* video mode to suit the user, why do they even exist?

Any idea why there is no man page on Fedora [19,20,21] for Grub, Grub2, or grub.cfg?

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