Use GRUB_TERMINAL=console in /etc/default/grub and rerun update-grub.
Also note that there is WIP for supporting braille in GRUB.
On 05.02.2013 05:35, D.J.J. Ring, Jr. wrote:

> Hello everyone,
> 
> I thought I'd post here as my post is not exactly help, but that also
> will be welcome.
> 
> Prior to GRUB2 it was quite easy to change virtual console resolution.
> 
> There are some of us who still use console without  X windows.  One such
> group is older persons who cannot see at anything except 640x480 resolution.
> 
> Those of us who are developing www.vinuxproject.org
> <http://www.vinuxproject.org> have a nice Debian version (Vinux 2.0)
> that is CLI only and has a nice 640x480 screen.
> 
> I have tried some of the examples I have found on the Internet and they
> all worked until recently.
> 
> But couldn't the boot command just be modified to be what it was once in
> GRUB?  it was so simple to modify then update grub and the user had a
> bigger size font.
> 
> Also could someone tell me now what I must do in the current version of
> grub2 to get 640x480 resolution kept when the OS boots?
> 
> Thanks for any responses I will receive.
> 
> David J. Ring, Jr., N1EA <http://www.qsl.net/n1ea/>  Radio-Officers
> Group <http://groups.google.com/group/radio-officers?hl=en> -- Join CW
> email list <http://mailman.qth.net/mailman/listinfo/cw%20> -- Historic
> Morse Recordings <http://tiny.cc/n1ea> 
> *Gopher Hole:*  gopher://sdf.org/1/users/djringjr/
> <gopher://sdf.org/1/users/djringjr/> (native or with Firefox's
> Overbite extension) or via http to gopher gateway
> <http://gopher.floodgap.com/gopher/gw?gopher://sdf.org/1/users/djringjr/>
> *C**hat* Skype: djringjrMSN: djringjr@msn.com
> <mailto:djringjr@msn.com>AIM: N1EAicq: 27380609
> 
> =30=
> 
> 
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-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko