[PATCH] Add possibility to interrupt zPXE and to enter CMS

[Tim Hardeck]

This change should make it easier to interrupt zPXE when it is
used as the default profile.

As long as a user is connected a ten second timer is run at the
beginning of zPXE to give the possibility to exit zPXE and
enter CMS.

Signed-off-by: Tim Hardeck <thardeck(a)suse.de&gt;
---
 scripts/zpxe.rexx |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/scripts/zpxe.rexx b/scripts/zpxe.rexx
index 2050b18..24ec755 100644
--- a/scripts/zpxe.rexx
+++ b/scripts/zpxe.rexx
@@ -59,6 +59,22 @@ userid = translate(id, lower, upper)
 'cp set run on'
 'cp set pf11 retrieve forward'
 'cp set pf12 retrieve'
+
+/* Make it possible to interrupt zPXE and to enter CMS even with a
+   specific user profile present
+*/
+if (dsc <> 'DSC') then do                      /* user is connected */
+  say ''
+  say 'Enter a non-blank character and ENTER (or two ENTERs) within 10'
+  say ' seconds to interrupt zPXE.'
+  'WAKEUP +00:10 (CONS'
+  /* Check for interrupt */
+  if rc = 6 then do
+    say 'Interrupt: entering CMS.'
+    pull                                             /* Clear Stack */
+    exit
+  end
+end
  
 /* Check for config file */
 if lines(config) > 0 then do
-- 
1.7.3.4