DEC VT220 and zsh...

DEC VT220 and zsh...

[Alan Third]

OK, I'm stumped. I got a DEC VT220, connected it to my internet
gateway box and stuck a getty on it. Everything is fine until I try to
run zsh, which doesn't seem to do anything.

I had to change my login shell to bash, which works happily. The only
thing I wasn't expecting is that $TERM is "linux" rather than "vt220",
could this be affecting zsh?

I'm running the unstable version of debian (whatever it's called these
days...)

oscar:/home/alan>echo $ZSH_VERSION 
4.0.1-pre-3

Any ideas or anything blatantly obvious that I'm missing?

Thanks!
-- 
Alan Third
((h=$COLUMNS-1,v=$LINES,c=0)); for ((b=-1.5;b<=1.5;b+=3.0/v));do; for ((a=-2.0;
a<=1;a+=3.0/h));do;for ((p=0.0,q=0.0,i=0;p*p+q*q<4 && i<32;i++));do;((x=2*p*q+b
,p=p*p-q*q+a,q=x));done;((c=(i/4)%8));echo -n "\e[4${c}m ";done;done

Re: DEC VT220 and zsh...

[Bart Schaefer]

On May 19,  1:10am, Alan Third wrote:
} 
} OK, I'm stumped. I got a DEC VT220, connected it to my internet
} gateway box and stuck a getty on it. Everything is fine until I try to
} run zsh, which doesn't seem to do anything.

The last time this came up, it was because "stuck a getty on it" really
meant "stuck an mgetty on it" -- and since the line is a terminal, not
a modem (the m in mgetty), zsh and mgetty clashed over the exclusive-open
on the tty device.

} I had to change my login shell to bash, which works happily. The only
} thing I wasn't expecting is that $TERM is "linux" rather than "vt220",
} could this be affecting zsh?

Not in the way you describe, but you probably want to change the getty
command line in /etc/inittab to provide the correct terminal type.

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net   

Re: DEC VT220 and zsh...

[Thomas Köhler]

[-- Attachment #1: Type: text/plain, Size: 1925 bytes --]

On Sat, May 19, 2001 at 02:17:42AM +0000,
Bart Schaefer <schaefer@candle.brasslantern.com> wrote:
> On May 19,  1:10am, Alan Third wrote:
> } 
> } OK, I'm stumped. I got a DEC VT220, connected it to my internet
> } gateway box and stuck a getty on it. Everything is fine until I try to
> } run zsh, which doesn't seem to do anything.
> 
> The last time this came up, it was because "stuck a getty on it" really
> meant "stuck an mgetty on it" -- and since the line is a terminal, not
> a modem (the m in mgetty), zsh and mgetty clashed over the exclusive-open
> on the tty device.

Yes, I _do_ remember this one ;-) Though I'm using a DEC VT510 ;-)

> } I had to change my login shell to bash, which works happily. The only
> } thing I wasn't expecting is that $TERM is "linux" rather than "vt220",
> } could this be affecting zsh?
> 
> Not in the way you describe, but you probably want to change the getty
> command line in /etc/inittab to provide the correct terminal type.

As I'm also running Debian unstable (aka sid), my line in /etc/inittab
may be of help. Here it is:

T1:23:respawn:/sbin/getty -L ttyS1 38400 vt510
#                                  ^^^^^ ^^^^^- you should change this
#                                  |||||        to "vt220"
#                                  +++++------- the line speed. 9600
#                                               or 19200 may also be
#                                               values you should try
#                                               out if you run into
#                                               problems

CU,
Thomas

-- 
 Thomas Köhler Email:   jean-luc@picard.franken.de     | LCARS - Linux
     <><        WWW:     http://jeanluc-picard.de      | for Computers
                IRC:             jeanluc               | on All Real
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[-- Attachment #2: Type: application/pgp-signature, Size: 232 bytes --]

Re: DEC VT220 and zsh...

[Alan Third]

On Sun, May 20, 2001 at 10:51:17PM +0200, Thomas K?hler wrote:
> 
> As I'm also running Debian unstable (aka sid), my line in /etc/inittab
> may be of help. Here it is:
> 
> T1:23:respawn:/sbin/getty -L ttyS1 38400 vt510
> #                                  ^^^^^ ^^^^^- you should change this
> #                                  |||||        to "vt220"
> #                                  +++++------- the line speed. 9600
> #                                               or 19200 may also be
> #                                               values you should try
> #                                               out if you run into
> #                                               problems

Thanks, I was missing the -L. I actually got it working the other day,
but I think I hit "r" instead of "L" and sent an email to Bart
Schaefer instead of the list.
-- 
Alan Third

Put your head in the microwave and give yourself a tan

Re: DEC VT220 and zsh...

[William H. Magill]

>   OK, I'm stumped. I got a DEC VT220, connected it to my internet
>   gateway box and stuck a getty on it. Everything is fine until I try to
>   run zsh, which doesn't seem to do anything.
>
>   I had to change my login shell to bash, which works happily. The only
>   thing I wasn't expecting is that $TERM is "linux" rather than "vt220",
>   could this be affecting zsh?
>

Sounds like you might need to put  <path-to>/zsh  into /etc/shells.

Generally speaking you will need to do your own setting of TERM to be
VT220.

The "linux" is probably your default entry in /etc/gettydefs.
If you have a REAL VT220, and the getty is "smart" the VT220 will
answerback, its terminal type... but don't hold your breath, that
technology never worked consistantly in multi-vendor setups.

Otherwise, you will have to play games with tset. (man tset).

-- 
                        www.tru64unix.compaq.com
                              www.tru64.org
                             comp.unix.tru64
                        
T.T.F.N.
William H. Magill                          Senior Systems Administrator
Information Services and Computing (ISC)   University of Pennsylvania
Internet: magill@isc.upenn.edu             magill@acm.org
http://www.isc-net.upenn.edu/~magill/