fix for f14

[bootmanager.git] / source / steps / MakeInitrd.py

diff --git a/source/steps/MakeInitrd.py b/source/steps/MakeInitrd.py
index 4854da7..66ba5e6 100644 (file)
--- a/source/steps/MakeInitrd.py
+++ b/source/steps/MakeInitrd.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python2 -u
+#!/usr/bin/python
 
 # Copyright (c) 2003 Intel Corporation
 # All rights reserved.
@@ -6,12 +6,37 @@
 # Copyright (c) 2004-2006 The Trustees of Princeton University
 # All rights reserved.
 
-import os, string
+import os, os.path
 
 from Exceptions import *
 import utils
 import systeminfo
 
+def kernelHasMkinitrd():
+    #  Older bootcds only support LinuxThreads.  This hack is to get mkinitrd
+    #  to run without segfaulting by using /lib/obsolete/linuxthreads
+    kver = os.popen("/bin/uname -r", "r").readlines()[0].rstrip().split(".")
+    if int(kver[1]) > 4:
+        return True
+    elif int(kver[1]) <=4:
+        return False
+
+
+# for centos5.3
+# 14:42:27(UTC) No module dm-mem-cache found for kernel 2.6.22.19-vs2.3.0.34.33.onelab, aborting.
+# http://kbase.redhat.com/faq/docs/DOC-16528;jsessionid=7E984A99DE8DB094D9FB08181C71717C.ab46478d
+def bypassRaidIfNeeded(sysimg_path):
+    try:
+        [ a,b,c,d]=file('%s/etc/redhat-release'%sysimg_path).readlines()[0].strip().split()
+        if a !='CentOS': return
+        [major,minor]=[int(x) for x in c.split('.')]
+        if minor >= 3:
+            utils.sysexec_noerr('echo "DMRAID=no" >> %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path)
+            utils.sysexec_noerr('chmod 755 %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path)
+    except:
+        pass
+            
+        
 def Run( vars, log ):
     """
     Rebuilds the system initrd, on first install or in case the
@@ -35,23 +60,29 @@ def Run( vars, log ):
     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()
+    # mkinitrd needs /dev and /proc to do the right thing.
+    # /proc is already mounted, so bind-mount /dev here
+    # looks like this dir somehow already exists under f14
+    if not os.path.isdir ("%s/dev" % SYSIMG_PATH):
+        utils.sysexec("mount -o bind /dev %s/dev" % SYSIMG_PATH)
+    utils.sysexec("mount -t sysfs none %s/sys" % SYSIMG_PATH)
 
     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 )
+    try:
+        utils.removefile( "%s/boot/%s" % (SYSIMG_PATH, initrd) )
+    except:
+        print "%s/boot/%s is already removed" % (SYSIMG_PATH, initrd)
+
+    # hack for CentOS 5.3
+    bypassRaidIfNeeded(SYSIMG_PATH)
+    if kernelHasMkinitrd() == True:
+        utils.sysexec_chroot( SYSIMG_PATH, "mkinitrd -v --allow-missing /boot/initrd-%s.img %s" % \
+                   (kernel_version, kernel_version), log )
+    else:
+        shutil.copy("./mkinitrd.sh","%s/tmp/mkinitrd.sh" % SYSIMG_PATH)
+        os.chmod("%s/tmp/mkinitrd.sh" % SYSIMG_PATH, 755)
+        utils.sysexec_chroot( SYSIMG_PATH, "/tmp/mkinitrd.sh %s" % (kernel_version))
+
+    utils.sysexec_noerr("umount %s/sys" % SYSIMG_PATH)
+    utils.sysexec_noerr("umount %s/dev" % SYSIMG_PATH)
 
-    if fake_root_lvm == True:
-        utils.removefile( "%s/%s" % (SYSIMG_PATH,PARTITIONS["mapper-root"]) )