Re: Wishlist (it's a must)

[Yoshinori K. Okuji]

Ok, I think now is the time when I should comment on this issue.

First of all, I agree that GRUB shouldn't erase anything on the screen
unnecessarily. IIRC, this is not the first time that the issue rose in
this mailing list. The reason that we didn't fix the problem at that
time was just that NOBODY ACTUALLY WORKED FOR THE SOLUTION. Therefore,
I want to say, "Send a patch".

The rest thing that I want to say is what I think the best way
is. First, move the call to "cls" in "init_page" to somewhere else, so
that GRUB doesn't call "cls" before starting the command-line
interface. Next, the more complicated task: save the initial screen,
and restore it when the user enters the command-line interface from
the menu interface. This is similar to what Gordon said, but I think
this is simpler for the user, because he/she doesn't have to remember
another command. How to save the screen? To do that, you can just copy
the video memory area to another. Because the screen is in a text
mode, that wouldn't require lots of memory.

I hope someone else me is glad to work on this issue.

Happy Hacking,
Okuji