From caadc87bb5ead9c197030caf883c0597816ce4ae Mon Sep 17 00:00:00 2001
From: chenglch <chenglch@cn.ibm.com>
Date: Sun, 31 Jul 2016 22:47:47 -0400
Subject: [PATCH] Propagate signal via ssh even though pipe broken can not be
 detected

Add `-tt` option to force tty allocation when running ssh command

close-issue: #1609
---
 perl-xCAT/xCAT/SSH.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/perl-xCAT/xCAT/SSH.pm b/perl-xCAT/xCAT/SSH.pm
index 182671abb..c1de602af 100644
--- a/perl-xCAT/xCAT/SSH.pm
+++ b/perl-xCAT/xCAT/SSH.pm
@@ -75,6 +75,7 @@ sub remote_shell_command {
     if ($ssh_version eq 'OpenSSH') {
         push @command, '-o';
         push @command, 'BatchMode=yes';
+        push @command, '-tt';
 
         ($$config{'options'} !~ /-X/) && push @command, '-x';
     }