diff --git a/poky/scripts/lib/wic/__init__.py b/poky/scripts/lib/wic/__init__.py
index ba2d614..8556793 100644
--- a/poky/scripts/lib/wic/__init__.py
+++ b/poky/scripts/lib/wic/__init__.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python -tt
+#!/usr/bin/env python3
 #
 # Copyright (c) 2007 Red Hat, Inc.
 # Copyright (c) 2011 Intel, Inc.
diff --git a/poky/scripts/lib/wic/ksparser.py b/poky/scripts/lib/wic/ksparser.py
index 6204821..3e67003 100644
--- a/poky/scripts/lib/wic/ksparser.py
+++ b/poky/scripts/lib/wic/ksparser.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python -tt
+#!/usr/bin/env python3
 #
 # Copyright (c) 2016 Intel, Inc.
 #
diff --git a/poky/scripts/lib/wic/pluginbase.py b/poky/scripts/lib/wic/pluginbase.py
index bfb73ca..f74d643 100644
--- a/poky/scripts/lib/wic/pluginbase.py
+++ b/poky/scripts/lib/wic/pluginbase.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python -tt
+#!/usr/bin/env python3
 #
 # Copyright (c) 2011 Intel, Inc.
 #
diff --git a/poky/scripts/lib/wic/plugins/imager/direct.py b/poky/scripts/lib/wic/plugins/imager/direct.py
index 67addef..91fc5e7 100644
--- a/poky/scripts/lib/wic/plugins/imager/direct.py
+++ b/poky/scripts/lib/wic/plugins/imager/direct.py
@@ -49,7 +49,6 @@
 
         # parse possible 'rootfs=name' items
         self.rootfs_dir = dict(rdir.split('=') for rdir in rootfs_dir.split(' '))
-        self.replaced_rootfs_paths = {}
         self.bootimg_dir = bootimg_dir
         self.kernel_dir = kernel_dir
         self.native_sysroot = native_sysroot
@@ -59,6 +58,7 @@
         self.compressor = options.compressor
         self.bmap = options.bmap
         self.no_fstab_update = options.no_fstab_update
+        self.original_fstab = None
 
         self.name = "%s-%s" % (os.path.splitext(os.path.basename(wks_file))[0],
                                strftime("%Y%m%d%H%M"))
@@ -104,24 +104,13 @@
 
         with open(fstab_path) as fstab:
             fstab_lines = fstab.readlines()
+            self.original_fstab = fstab_lines.copy()
 
         if self._update_fstab(fstab_lines, self.parts):
-            # copy rootfs dir to workdir to update fstab
-            # as rootfs can be used by other tasks and can't be modified
-            new_pseudo = os.path.realpath(os.path.join(self.workdir, "pseudo"))
-            from_dir = os.path.join(os.path.join(image_rootfs, ".."), "pseudo")
-            from_dir = os.path.realpath(from_dir)
-            copyhardlinktree(from_dir, new_pseudo)
-            new_rootfs = os.path.realpath(os.path.join(self.workdir, "rootfs_copy"))
-            copyhardlinktree(image_rootfs, new_rootfs)
-            fstab_path = os.path.join(new_rootfs, 'etc/fstab')
-
-            os.unlink(fstab_path)
-
             with open(fstab_path, "w") as fstab:
                 fstab.writelines(fstab_lines)
-
-            return new_rootfs
+        else:
+            self.original_fstab = None
 
     def _update_fstab(self, fstab_lines, parts):
         """Assume partition order same as in wks"""
@@ -170,14 +159,8 @@
         filesystems from the artifacts directly and combine them into
         a partitioned image.
         """
-        if self.no_fstab_update:
-            new_rootfs = None
-        else:
-            new_rootfs = self._write_fstab(self.rootfs_dir.get("ROOTFS_DIR"))
-        if new_rootfs:
-            # rootfs was copied to update fstab
-            self.replaced_rootfs_paths[new_rootfs] = self.rootfs_dir['ROOTFS_DIR']
-            self.rootfs_dir['ROOTFS_DIR'] = new_rootfs
+        if not self.no_fstab_update:
+            self._write_fstab(self.rootfs_dir.get("ROOTFS_DIR"))
 
         for part in self.parts:
             # get rootfs size from bitbake variable if it's not set in .ks file
@@ -253,8 +236,6 @@
             else:
                 suffix = '["%s"]:' % (part.mountpoint or part.label)
             rootdir = part.rootfs_dir
-            if rootdir in self.replaced_rootfs_paths:
-                rootdir = self.replaced_rootfs_paths[rootdir]
             msg += '  ROOTFS_DIR%s%s\n' % (suffix.ljust(20), rootdir)
 
         msg += '  BOOTIMG_DIR:                  %s\n' % self.bootimg_dir
@@ -292,6 +273,12 @@
             if os.path.isfile(path):
                 shutil.move(path, os.path.join(self.outdir, fname))
 
+        #Restore original fstab
+        if self.original_fstab:
+            fstab_path = self.rootfs_dir.get("ROOTFS_DIR") + "/etc/fstab"
+            with open(fstab_path, "w") as fstab:
+                fstab.writelines(self.original_fstab)
+
         # remove work directory
         shutil.rmtree(self.workdir, ignore_errors=True)
 
diff --git a/poky/scripts/lib/wic/plugins/source/bootimg-biosplusefi.py b/poky/scripts/lib/wic/plugins/source/bootimg-biosplusefi.py
new file mode 100644
index 0000000..5bd7390
--- /dev/null
+++ b/poky/scripts/lib/wic/plugins/source/bootimg-biosplusefi.py
@@ -0,0 +1,213 @@
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# DESCRIPTION
+# This implements the 'bootimg-biosplusefi' source plugin class for 'wic'
+#
+# AUTHORS
+# William Bourque <wbourque [at) gmail.com>
+
+import types
+
+from wic.pluginbase import SourcePlugin
+from importlib.machinery import SourceFileLoader
+
+class BootimgBiosPlusEFIPlugin(SourcePlugin):
+    """
+    Create MBR + EFI boot partition
+
+    This plugin creates a boot partition that contains both
+    legacy BIOS and EFI content. It will be able to boot from both.
+    This is useful when managing PC fleet with some older machines
+    without EFI support.
+
+    Note it is possible to create an image that can boot from both
+    legacy BIOS and EFI by defining two partitions : one with arg
+    --source bootimg-efi  and another one with --source bootimg-pcbios.
+    However, this method has the obvious downside that it requires TWO
+    partitions to be created on the storage device.
+    Both partitions will also be marked as "bootable" which does not work on
+    most BIOS, has BIOS often uses the "bootable" flag to determine
+    what to boot. If you have such a BIOS, you need to manually remove the
+    "bootable" flag from the EFI partition for the drive to be bootable.
+    Having two partitions also seems to confuse wic : the content of
+    the first partition will be duplicated into the second, even though it
+    will not be used at all.
+
+    Also, unlike "isoimage-isohybrid" that also does BIOS and EFI, this plugin
+    allows you to have more than only a single rootfs partitions and does
+    not turn the rootfs into an initramfs RAM image.
+
+    This plugin is made to put everything into a single /boot partition so it
+    does not have the limitations listed above.
+
+    The plugin is made so it does tries not to reimplement what's already
+    been done in other plugins; as such it imports "bootimg-pcbios"
+    and "bootimg-efi".
+    Plugin "bootimg-pcbios" is used to generate legacy BIOS boot.
+    Plugin "bootimg-efi" is used to generate the UEFI boot. Note that it
+    requires a --sourceparams argument to know which loader to use; refer
+    to "bootimg-efi" code/documentation for the list of loader.
+
+    Imports are handled with "SourceFileLoader" from importlib as it is
+    otherwise very difficult to import module that has hyphen "-" in their
+    filename.
+    The SourcePlugin() methods used in the plugins (do_install_disk,
+    do_configure_partition, do_prepare_partition) are then called on both,
+    beginning by "bootimg-efi".
+
+    Plugin options, such as "--sourceparams" can still be passed to a
+    plugin, as long they does not cause issue in the other plugin.
+
+    Example wic configuration:
+    part /boot --source bootimg-biosplusefi --sourceparams="loader=grub-efi"\\
+               --ondisk sda --label os_boot --active --align 1024 --use-uuid
+    """
+
+    name = 'bootimg-biosplusefi'
+
+    __PCBIOS_MODULE_NAME = "bootimg-pcbios"
+    __EFI_MODULE_NAME = "bootimg-efi"
+
+    __imgEFIObj = None
+    __imgBiosObj = None
+
+    @classmethod
+    def __init__(cls):
+        """
+        Constructor (init)
+        """
+
+        # XXX
+        # For some reasons, __init__ constructor is never called.
+        # Something to do with how pluginbase works?
+        cls.__instanciateSubClasses()
+
+    @classmethod
+    def __instanciateSubClasses(cls):
+        """
+
+        """
+
+        # Import bootimg-pcbios (class name "BootimgPcbiosPlugin")
+        modulePath = os.path.join(os.path.dirname(os.path.realpath(__file__)),
+                                  cls.__PCBIOS_MODULE_NAME + ".py")
+        loader = SourceFileLoader(cls.__PCBIOS_MODULE_NAME, modulePath)
+        mod = types.ModuleType(loader.name)
+        loader.exec_module(mod)
+        cls.__imgBiosObj = mod.BootimgPcbiosPlugin()
+
+        # Import bootimg-efi (class name "BootimgEFIPlugin")
+        modulePath = os.path.join(os.path.dirname(os.path.realpath(__file__)),
+                                  cls.__EFI_MODULE_NAME + ".py")
+        loader = SourceFileLoader(cls.__EFI_MODULE_NAME, modulePath)
+        mod = types.ModuleType(loader.name)
+        loader.exec_module(mod)
+        cls.__imgEFIObj = mod.BootimgEFIPlugin()
+
+    @classmethod
+    def do_install_disk(cls, disk, disk_name, creator, workdir, oe_builddir,
+                        bootimg_dir, kernel_dir, native_sysroot):
+        """
+        Called after all partitions have been prepared and assembled into a
+        disk image.
+        """
+
+        if ( (not cls.__imgEFIObj) or (not cls.__imgBiosObj) ):
+            cls.__instanciateSubClasses()
+
+        cls.__imgEFIObj.do_install_disk(
+            disk,
+            disk_name,
+            creator,
+            workdir,
+            oe_builddir,
+            bootimg_dir,
+            kernel_dir,
+            native_sysroot)
+
+        cls.__imgBiosObj.do_install_disk(
+            disk,
+            disk_name,
+            creator,
+            workdir,
+            oe_builddir,
+            bootimg_dir,
+            kernel_dir,
+            native_sysroot)
+
+    @classmethod
+    def do_configure_partition(cls, part, source_params, creator, cr_workdir,
+                               oe_builddir, bootimg_dir, kernel_dir,
+                               native_sysroot):
+        """
+        Called before do_prepare_partition()
+        """
+
+        if ( (not cls.__imgEFIObj) or (not cls.__imgBiosObj) ):
+            cls.__instanciateSubClasses()
+
+        cls.__imgEFIObj.do_configure_partition(
+            part,
+            source_params,
+            creator,
+            cr_workdir,
+            oe_builddir,
+            bootimg_dir,
+            kernel_dir,
+            native_sysroot)
+
+        cls.__imgBiosObj.do_configure_partition(
+            part,
+            source_params,
+            creator,
+            cr_workdir,
+            oe_builddir,
+            bootimg_dir,
+            kernel_dir,
+            native_sysroot)
+
+    @classmethod
+    def do_prepare_partition(cls, part, source_params, creator, cr_workdir,
+                             oe_builddir, bootimg_dir, kernel_dir,
+                             rootfs_dir, native_sysroot):
+        """
+        Called to do the actual content population for a partition i.e. it
+        'prepares' the partition to be incorporated into the image.
+        """
+
+        if ( (not cls.__imgEFIObj) or (not cls.__imgBiosObj) ):
+            cls.__instanciateSubClasses()
+
+        cls.__imgEFIObj.do_prepare_partition(
+            part,
+            source_params,
+            creator,
+            cr_workdir,
+            oe_builddir,
+            bootimg_dir,
+            kernel_dir,
+            rootfs_dir,
+            native_sysroot)
+
+        cls.__imgBiosObj.do_prepare_partition(
+            part,
+            source_params,
+            creator,
+            cr_workdir,
+            oe_builddir,
+            bootimg_dir,
+            kernel_dir,
+            rootfs_dir,
+            native_sysroot)
diff --git a/poky/scripts/lib/wic/plugins/source/bootimg-efi.py b/poky/scripts/lib/wic/plugins/source/bootimg-efi.py
index 5cc5c8a..2cfdc10 100644
--- a/poky/scripts/lib/wic/plugins/source/bootimg-efi.py
+++ b/poky/scripts/lib/wic/plugins/source/bootimg-efi.py
@@ -74,8 +74,10 @@
             grubefi_conf += "menuentry '%s'{\n" % (title if title else "boot")
 
             kernel = get_bitbake_var("KERNEL_IMAGETYPE")
-            if not kernel:
-                kernel = "bzImage"
+            if get_bitbake_var("INITRAMFS_IMAGE_BUNDLE") == "1":
+                if get_bitbake_var("INITRAMFS_IMAGE"):
+                    kernel = "%s-%s.bin" % \
+                        (get_bitbake_var("KERNEL_IMAGETYPE"), get_bitbake_var("INITRAMFS_LINK_NAME"))
 
             label = source_params.get('label')
             label_conf = "root=%s" % creator.rootdev
@@ -154,8 +156,10 @@
         if not custom_cfg:
             # Create systemd-boot configuration using parameters from wks file
             kernel = get_bitbake_var("KERNEL_IMAGETYPE")
-            if not kernel:
-                kernel = "bzImage"
+            if get_bitbake_var("INITRAMFS_IMAGE_BUNDLE") == "1":
+                if get_bitbake_var("INITRAMFS_IMAGE"):
+                    kernel = "%s-%s.bin" % \
+                        (get_bitbake_var("KERNEL_IMAGETYPE"), get_bitbake_var("INITRAMFS_LINK_NAME"))
 
             title = source_params.get('title')
 
@@ -225,8 +229,10 @@
         hdddir = "%s/hdd/boot" % cr_workdir
 
         kernel = get_bitbake_var("KERNEL_IMAGETYPE")
-        if not kernel:
-            kernel = "bzImage"
+        if get_bitbake_var("INITRAMFS_IMAGE_BUNDLE") == "1":
+            if get_bitbake_var("INITRAMFS_IMAGE"):
+                kernel = "%s-%s.bin" % \
+                    (get_bitbake_var("KERNEL_IMAGETYPE"), get_bitbake_var("INITRAMFS_LINK_NAME"))
 
         install_cmd = "install -m 0644 %s/%s %s/%s" % \
             (staging_kernel_dir, kernel, hdddir, kernel)
diff --git a/poky/scripts/lib/wic/plugins/source/bootimg-pcbios.py b/poky/scripts/lib/wic/plugins/source/bootimg-pcbios.py
index 670d347..f2639e7 100644
--- a/poky/scripts/lib/wic/plugins/source/bootimg-pcbios.py
+++ b/poky/scripts/lib/wic/plugins/source/bootimg-pcbios.py
@@ -150,8 +150,10 @@
         hdddir = "%s/hdd/boot" % cr_workdir
 
         kernel = get_bitbake_var("KERNEL_IMAGETYPE")
-        if not kernel:
-            kernel = "bzImage"
+        if get_bitbake_var("INITRAMFS_IMAGE_BUNDLE") == "1":
+            if get_bitbake_var("INITRAMFS_IMAGE"):
+                kernel = "%s-%s.bin" % \
+                    (get_bitbake_var("KERNEL_IMAGETYPE"), get_bitbake_var("INITRAMFS_LINK_NAME"))
 
         cmds = ("install -m 0644 %s/%s %s/vmlinuz" %
                 (staging_kernel_dir, kernel, hdddir),
diff --git a/poky/scripts/lib/wic/plugins/source/isoimage-isohybrid.py b/poky/scripts/lib/wic/plugins/source/isoimage-isohybrid.py
index 74d6f14..24299c1 100644
--- a/poky/scripts/lib/wic/plugins/source/isoimage-isohybrid.py
+++ b/poky/scripts/lib/wic/plugins/source/isoimage-isohybrid.py
@@ -71,8 +71,11 @@
         syslinux_conf += "LABEL boot\n"
 
         kernel = get_bitbake_var("KERNEL_IMAGETYPE")
-        if not kernel:
-            kernel = "bzImage"
+        if get_bitbake_var("INITRAMFS_IMAGE_BUNDLE") == "1":
+            if get_bitbake_var("INITRAMFS_IMAGE"):
+                kernel = "%s-%s.bin" % \
+                    (get_bitbake_var("KERNEL_IMAGETYPE"), get_bitbake_var("INITRAMFS_LINK_NAME"))
+
         syslinux_conf += "KERNEL /" + kernel + "\n"
         syslinux_conf += "APPEND initrd=/initrd LABEL=boot %s\n" \
                              % bootloader.append
@@ -117,8 +120,10 @@
             grubefi_conf += "menuentry 'boot'{\n"
 
             kernel = get_bitbake_var("KERNEL_IMAGETYPE")
-            if not kernel:
-                kernel = "bzImage"
+            if get_bitbake_var("INITRAMFS_IMAGE_BUNDLE") == "1":
+                if get_bitbake_var("INITRAMFS_IMAGE"):
+                    kernel = "%s-%s.bin" % \
+                        (get_bitbake_var("KERNEL_IMAGETYPE"), get_bitbake_var("INITRAMFS_LINK_NAME"))
 
             grubefi_conf += "linux /%s rootwait %s\n" \
                             % (kernel, bootloader.append)
@@ -273,8 +278,10 @@
             os.remove("%s/initrd.cpio.gz" % cr_workdir)
 
         kernel = get_bitbake_var("KERNEL_IMAGETYPE")
-        if not kernel:
-            kernel = "bzImage"
+        if get_bitbake_var("INITRAMFS_IMAGE_BUNDLE") == "1":
+            if get_bitbake_var("INITRAMFS_IMAGE"):
+                kernel = "%s-%s.bin" % \
+                    (get_bitbake_var("KERNEL_IMAGETYPE"), get_bitbake_var("INITRAMFS_LINK_NAME"))
 
         install_cmd = "install -m 0644 %s/%s %s/%s" % \
                       (kernel_dir, kernel, isodir, kernel)