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Re: Serial support and DUMB serial support
From: |
Christoph Plattner |
Subject: |
Re: Serial support and DUMB serial support |
Date: |
Sat, 12 Jan 2002 01:04:05 +0100 |
I have to correct myself !
Point 1 is already fullfilled, my problem with `expect' had
another reason, not depending on GRUB.
I found out, that "serial_getxy" is never called any more.
So this function can theoretically be removed.
With friendly regards
Christoph P.
Christoph Plattner wrote:
>
> Hello GRUB community !
>
> In our company we use GRUB to boot a couple of embedded machines
> in complex setups. Further we use automatic test scenarios, where
> test tools control the machine via serial console or ethernet.
>
> For the serial console I have some ideas for improvements.
> 2 Points:
>
> 1) As GRUB now shifts the command line, it it exceeds the line
> length, the `serial_getxy' should not do a real terminal query
> any more. In setups not using a xterm but editor `emacs' or
> using `expect' cannot handle this easily. As we always stay
> in the same line, `x' can be calculated. For `y' I have to
> check, if it is needed for the command line editing.
>
> 2) DUMB terminal support for serial line:
> The menu should work a little bit different. My prefered
> solution is, that every menu selection has to be confirmed
> by return. On the first keypress the countdown is stopped
> (as now implemeted), then there is not a up down, but a
> selection per number, like `3<ENTER>'. A `<ENTER>' alone
> can select the default entry. To get in command line mode
> a `c<ENTER>' must be given. To edit the default entry
> use `e<ENTER>', to edit entry 3 (for example), use
> `e3<ENTER>'. So also canonical terminals can be used to
> control GRUB inclusive the menu.
>
> With this change, it would be easy to use the GRUB menu
> out of `emacs' or `expect'.
>
> Chnages for point 1 are quite simple (my opinion).
> For point 2 the control logic must be addepted to
> the usage of <ENTER> without breaking the default
> menu behavior.
>
> What do you think of this change ?
>
> With friendly regards
> Christoph P.
>
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