From 0a89d479db2ec338225c880d185a8a694f32fca1 Mon Sep 17 00:00:00 2001
From: Planet-Lab Support <support@planet-lab.org>
Date: Tue, 22 Aug 2006 22:01:48 +0000
Subject: [PATCH] This commit was manufactured by cvs2svn to create branch
 'myplc-0_4-branch'.

---
 source/steps/MakeInitrd.py | 57 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 source/steps/MakeInitrd.py

diff --git a/source/steps/MakeInitrd.py b/source/steps/MakeInitrd.py
new file mode 100644
index 0000000..4854da7
--- /dev/null
+++ b/source/steps/MakeInitrd.py
@@ -0,0 +1,57 @@
+#!/usr/bin/python2 -u
+
+# Copyright (c) 2003 Intel Corporation
+# All rights reserved.
+#
+# Copyright (c) 2004-2006 The Trustees of Princeton University
+# All rights reserved.
+
+import os, string
+
+from Exceptions import *
+import utils
+import systeminfo
+
+def Run( vars, log ):
+    """
+    Rebuilds the system initrd, on first install or in case the
+    hardware changed.
+    """
+
+    log.write( "\n\nStep: Rebuilding initrd\n" )
+    
+    # make sure we have the variables we need
+    try:
+        SYSIMG_PATH= vars["SYSIMG_PATH"]
+        if SYSIMG_PATH == "":
+            raise ValueError, "SYSIMG_PATH"
+
+        PARTITIONS= vars["PARTITIONS"]
+        if PARTITIONS == None:
+            raise ValueError, "PARTITIONS"
+
+    except KeyError, var:
+        raise BootManagerException, "Missing variable in vars: %s\n" % var
+    except ValueError, var:
+        raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var
+
+    # mkinitrd attempts to determine if the root fs is on a logical
+    # volume by checking if the root device contains /dev/mapper in
+    # its path. The device node must exist for the check to succeed,
+    # but since it's usually managed by devfs or udev, so is probably
+    # not present, we just create a dummy file.
+    
+    fake_root_lvm= False
+    if not os.path.exists( "%s/%s" % (SYSIMG_PATH,PARTITIONS["mapper-root"]) ):
+        fake_root_lvm= True
+        utils.makedirs( "%s/dev/mapper" % SYSIMG_PATH )
+        rootdev= file( "%s/%s" % (SYSIMG_PATH,PARTITIONS["mapper-root"]), "w" )
+        rootdev.close()
+
+    initrd, kernel_version= systeminfo.getKernelVersion(vars,log)
+    utils.removefile( "%s/boot/%s" % (SYSIMG_PATH, initrd) )
+    utils.sysexec( "chroot %s mkinitrd -v /boot/initrd-%s.img %s" % \
+                   (SYSIMG_PATH, kernel_version, kernel_version), log )
+
+    if fake_root_lvm == True:
+        utils.removefile( "%s/%s" % (SYSIMG_PATH,PARTITIONS["mapper-root"]) )
-- 
2.43.0