Re: [ptxdist] Backspace not working in terminal (using ssh)

["Dold, Wolfram" <Wolfram.Dold@allegion.com>]

Hi Roland,
thank's for the quick reply.
On Tue, 2019-03-19 at 11:31 +0100, Roland Hieber wrote:
> Hi Wolfram,
> 
> there are historically different handlings of backspace, one is
> Ctrl-H, as mentioned by you below. The exact setting depends on the
> terminal emulator (some terminal emulators can also switch the
> behaviour, e.g. in putty, look under Terminal -> Keyboard). 
I saw that already. Our service technicians use putty under Windows.
The default setting on backspace for ssh connections in putty is '^?'.
Sure, we could tell them, change that setting, but from experience
some would overlook it or forget it or whatever.

The default setting for gnome-terminal is also '^?'.

So a working solution would be to delete the passage from the /etc/profile file.
What I don't like is that we then have a solution that differs from the ptxdist standard.
So the question is, is it imaginable that one of the next versions of ptxdist will 
no longer contain this passage?

Regards, Wolfram


> If backspace
> works for you without the stty line, then there is no harm in leaving it
> out, but the backspace behaviour could be different when connecting to
> the board with a different terminal emulator.
> 
> For reference, when I type `stty -a` on my xterm, it says :
> 
>     erase = ^?;
> 
>  - Roland
> 
> On Tue, Mar 19, 2019 at 09:17:13AM +0000, Dold, Wolfram wrote:
> > Hi there,
> > when we connect via ssh to our embedded device, the backspace key does not work.
> > During the analysis we found out that the passage 
> > 
> > # This fixes the backspace when telnetting in.
> > if [ "$TERM" != "linux" ]; then
> >         stty erase ^H
> > fi
> > 
> > from the file '/etc/profile' contained in ptxdist.
> > 
> > Now I want to ask, how best to fix this behavior?
> > Can the passage simply be omitted? (At least the comment lets me assume that, because there 'telnet' is mentioned
> > and
> > that is no longer necessarily state of the art).
> > Or does omitting it lead to other unwanted side effects?
> > 
> > Any help would be appreciated.
> > -- 
> > Regards,
> > Wolfram Dold
> > 
> > _______________________________________________
> > ptxdist mailing list
> > ptxdist@pengutronix.de
> 
> 
-- 
Regards / Mit den besten Grüßen,
Wolfram Dold
 
Firmware Developer
Phone:  +49 (0)7464/382-340

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