Trouble running sudo or (less ) after After making serial settings

[Ian Lepore]

On Wed, 2018-01-31 at 09:03 -0700, Ian Lepore wrote:
> On Wed, 2018-01-31 at 15:51 +0330, ali reza zareian wrote:
> > 
> >  hello
> > After making serial settings and boot using serial via putty, it is
> > not
> > possible to run sudo command.when i run this command without any
> > parameters
> > it should be print help but it is waiting for a key of the
> > keyboard.
> > if i send ctrl+c then output strings are printed.
> > 
> > Code:
> > 
> > settings :
> > boot.config =>-S115200 -D
> > ----------------------------------------------
> > /etc/ttys =>ttyu0   "/usr/libexec/getty std.115200"
> > vt100   onifconsole secure
> Try changing std.115200 to 3wire.115200 to disable flow-control.  I
> have no idea whether that's the problem, but it's a quick easy thing
> to
> try.
> 
> -- Ian

Hrm, on second thought... you mention the trouble is with running sudo
and less... both things that want to do some terminal-control (blank
password, scrolling, etc).  Make sure putty is configured to emulate a
vt100 properly.  Maybe try some other kind of terminal emulation.

-- Ian