Merge remote-tracking branch 'origin/5.0' into bootmanager-vender

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

diff --git a/source/steps/MakeInitrd.py b/source/steps/MakeInitrd.py
new file mode 100644 (file)
index 0000000..4564dfe
--- /dev/null
+++ b/source/steps/MakeInitrd.py
@@ -0,0 +1,77 @@
+#!/usr/bin/python
+#
+# Copyright (c) 2003 Intel Corporation
+# All rights reserved.
+#
+# Copyright (c) 2004-2006 The Trustees of Princeton University
+# All rights reserved.
+
+import os
+
+from Exceptions import *
+import utils
+import systeminfo
+
+# 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, log):
+    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 , log )
+            utils.sysexec_noerr('chmod 755 %s/etc/sysconfig/mkinitrd/noraid' % sysimg_path, log )
+    except:
+        pass
+            
+        
+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 needs /dev and /proc to do the right thing.
+    # /proc is already mounted, so bind-mount /dev here
+    # xxx tmp - trying to work around the f14 case:
+    # check that /dev/ is mounted with devtmpfs
+    # tmp - sysexec_noerr not returning what one would expect
+    # if utils.sysexec_noerr ("grep devtmpfs /proc/mounts") != 0:
+    utils.sysexec_noerr("mount -t devtmpfs none /dev")
+    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)
+    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 , log )
+    # specify ext3 for fedora14 and above as their default fs is ext4
+    utils.sysexec_chroot( SYSIMG_PATH, "mkinitrd -v --with=ext3 --allow-missing /boot/initrd-%s.img %s" % \
+               (kernel_version, kernel_version), log )
+
+    utils.sysexec_noerr("umount %s/sys" % SYSIMG_PATH , log )
+    utils.sysexec_noerr("umount %s/dev" % SYSIMG_PATH , log)
+