From d9cc96bc4f2bb28d5f3870efbec8da7fa7433d11 Mon Sep 17 00:00:00 2001
From: GONG Jie <gongjie@linux.vnet.ibm.com>
Date: Thu, 16 Apr 2015 16:52:41 +0800
Subject: [PATCH] Add more comments for bug#4502 fixing. Use /dev/hvc? instead
 of /dev/ttyS? for ppc64, ppc64le, ppc64el.

---
 xCAT-server/lib/xcat/plugins/anaconda.pm | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xCAT-server/lib/xcat/plugins/anaconda.pm b/xCAT-server/lib/xcat/plugins/anaconda.pm
index 810ca7038..49a7f7e43 100755
--- a/xCAT-server/lib/xcat/plugins/anaconda.pm
+++ b/xCAT-server/lib/xcat/plugins/anaconda.pm
@@ -796,6 +796,10 @@ sub mknetboot
                 next;
             }
             if ( $arch =~ /ppc64/i ) {
+                # For IBM Power machines, either ppc64 or ppc64le (ppc64el),
+                # both the physical serial port or virtual serial port appeared
+                # in PowerVM LPAR or PowerKVM guest use device /dev/hvc0 or
+                # /dev/hvc1 instead of /dev/ttyS0 or /dev/ttyS1
                 $kcmdline .= " console=tty0 console=hvc" . $sent->{serialport} . "," . $sent->{serialspeed};
             } else {
                 $kcmdline .= " console=tty0 console=ttyS" . $sent->{serialport} . "," . $sent->{serialspeed};