[syslinux] menu.c32 selection bar visibility on serial console

[J.H.]

On most serial ports I've seen used, the indicator is just a _ somewhere 
on the line, haven't played with this over a serial port recently but 
that's usually how it works.

- John "Warthog9" Hawley

Jodok Ole Muellers wrote:
> Hello,
> 
> I am using a menu with the help of menu.c32 which
> looks like this on a serial console (HP ILO Virtual Serial Port):
> 
> 
>   +----------------------------------------------------------+        
>   |                          Main                            |        
>    ----------------------------------------------------------        
>   |                                                          |        
>   | Boot from Harddisk (C:)                                  |        
>   | WDS - Windows Deployment Services                        |        
>   |   Debian -->                                             |        
>   |   Redhat -->                                             |        
>   |   Ubuntu -->                                             |        
>   |   Other -->                                              |        
>   | EXIT/Abort PXE                                           |        
>   |                                                          |        
>   |                                                          |        
>   |                                                          |        
>   |                                                          |        
>   +----------------------------------------------------------+      
> 
> 
> Unfortunately it's not possible to see what is selected 
> while navigating through this menu with the up/down keys.
> 
> This is the pxelinux.cfg/default:
> 
> 
> DEFAULT menu.c32
> PROMPT 0
> TIMEOUT 600
> 
> MENU TITLE Main 
> MENU SEPARATOR
> MENU NOTABMSG 
> MENU COLOR sel          1;7;37;40    #e0000000 #20ff8000 all
> 
> LABEL   0
>         MENU LABEL Boot from Harddisk
>         MENU default
>         LOCALBOOT 0
>         TYPE 0x80
> 
> LABEL   1
>         MENU LABEL WDS - Windows Deployment Services
>         KERNEL pxeboot.0
> 
> LABEL   2
>         MENU LABEL Debian -->
>         MENU INDENT 2
>         KERNEL menu.c32
>         HELP 
>         APPEND pxelinux.cfg/debian.menu
> 
> LABEL   3
>         MENU LABEL Redhat -->
>         MENU INDENT 2
>         KERNEL menu.c32
>         APPEND pxelinux.cfg/redhat.menu       
> 
> LABEL   4 
>         MENU LABEL Ubuntu -->
>         MENU INDENT 2
>         KERNEL menu.c32
>         APPEND pxelinux.cfg/ubuntu.menu
> 
> LABEL   5
>         MENU LABEL Other -->
>         MENU INDENT 2
>         KERNEL menu.c32
>         APPEND pxelinux.cfg/other.menu
> 
> LABEL   99
>         MENU LABEL EXIT/Abort PXE
>         KERNEL abortpxe.0
> 
> 
> 
> My understanding of  http://syslinux.zytor.com/wiki/index.php/Comboot/menu.c32
> is that "MENU COLOR sel 1;7;37;40    #e0000000 #20ff8000 all" should display
> the selection bar with these (ANSI?) attributes:
> 
> 	sel   Selection bar
> 	1     set bold
> 	7     set reverse video
> 	37    set white foreground
> 	40    set black background
> 
> I believe that these ANSI attributes are only available on a advanced terminal (xterm,linux,vt220)
> but not on a serial console.
> 
> 
> Is there any way to make the selection bar visible on a serial console ?
> E.g. by putting a "*" in front front of the selected item, or enclose the > selected item with < less-than,greater-than ?
> 
> 
> 
> Regards
> Jodok
> 
> 
> 
> 
> 
> 
> 
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