From 1ef96686f2ccf5af1be7f8634a5fa93d881dd5d3 Mon Sep 17 00:00:00 2001
From: vallard <vallard@8638fb3e-16cb-4fca-ae20-7b5d299a9bcd>
Date: Tue, 19 Jan 2010 05:49:22 +0000
Subject: [PATCH] removes node configuration to force a node to be
 autodiscovered on next boot

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@4973 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
---
 xCAT-server/share/xcat/tools/rmnodecfg | 52 ++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100755 xCAT-server/share/xcat/tools/rmnodecfg

diff --git a/xCAT-server/share/xcat/tools/rmnodecfg b/xCAT-server/share/xcat/tools/rmnodecfg
new file mode 100755
index 000000000..e8728999f
--- /dev/null
+++ b/xCAT-server/share/xcat/tools/rmnodecfg
@@ -0,0 +1,52 @@
+#!/usr/bin/perl
+# removes the configuration of a node so that the next time you reboot 
+# a node it forces it to go through the discovery process.
+# usage: rmnodecfg <noderange>
+# this does not remove it completely from xCAT.  You may want to do this
+# command before running noderm to completely purge the system of the node
+use strict;
+use Socket;
+
+my $blades = shift;
+if(! $blades) {
+  print "Please specify a noderange of blades to remove\n";
+  exit; 
+}
+
+foreach my $blade (`/opt/xcat/bin/nodels $blades`){
+  chomp($blade);
+  my $hex = ip2hex($blade); 
+  my $cmd = "nodech $blade chain.currstate= chain.currchain= chain.chain=";
+  $cmd = "chtab -d node=$blade chain";
+  print "$cmd\n";
+  `$cmd`;
+  $cmd = "chtab -d node=$blade mac";
+  print "$cmd\n";
+  `$cmd`;
+  $cmd = "makedhcp -d $blade";
+  print "$cmd\n";
+  `$cmd`;
+  $cmd = "rm /tftpboot/pxelinux.cfg/$blade";
+  print "$cmd\n";
+  `$cmd`;
+  if($hex){
+    $cmd = "rm /tftpboot/pxelinux.cfg/$hex";
+    print "$cmd\n";
+    `$cmd`;     
+  }     
+}
+
+sub ip2hex {
+  my $node = shift;
+  my $ip = '';
+  my @quad;
+  my $hex = '';
+  my $packed_ip = gethostbyname($node);
+  if(defined $packed_ip){
+    $ip = inet_ntoa($packed_ip);
+    @quad = split('\.', $ip);
+    $hex = sprintf("%02X%02X%02X%02X", @quad);
+  }
+  return $hex;
+}
+