diff --git a/poky/meta/lib/oe/sdk.py b/poky/meta/lib/oe/sdk.py
index d02a274..fdcadcb 100644
--- a/poky/meta/lib/oe/sdk.py
+++ b/poky/meta/lib/oe/sdk.py
@@ -7,8 +7,6 @@
 from oe.manifest import *
 from oe.package_manager import *
 import os
-import shutil
-import glob
 import traceback
 
 class Sdk(object, metaclass=ABCMeta):
@@ -110,283 +108,6 @@
             pass
 
 
-class RpmSdk(Sdk):
-    def __init__(self, d, manifest_dir=None, rpm_workdir="oe-sdk-repo"):
-        super(RpmSdk, self).__init__(d, manifest_dir)
-
-        self.target_manifest = RpmManifest(d, self.manifest_dir,
-                                           Manifest.MANIFEST_TYPE_SDK_TARGET)
-        self.host_manifest = RpmManifest(d, self.manifest_dir,
-                                         Manifest.MANIFEST_TYPE_SDK_HOST)
-
-        rpm_repo_workdir = "oe-sdk-repo"
-        if "sdk_ext" in d.getVar("BB_RUNTASK"):
-            rpm_repo_workdir = "oe-sdk-ext-repo"
-
-        self.target_pm = RpmPM(d,
-                               self.sdk_target_sysroot,
-                               self.d.getVar('TARGET_VENDOR'),
-                               'target',
-                               rpm_repo_workdir=rpm_repo_workdir
-                               )
-
-        self.host_pm = RpmPM(d,
-                             self.sdk_host_sysroot,
-                             self.d.getVar('SDK_VENDOR'),
-                             'host',
-                             "SDK_PACKAGE_ARCHS",
-                             "SDK_OS",
-                             rpm_repo_workdir=rpm_repo_workdir
-                             )
-
-    def _populate_sysroot(self, pm, manifest):
-        pkgs_to_install = manifest.parse_initial_manifest()
-
-        pm.create_configs()
-        pm.write_index()
-        pm.update()
-
-        pkgs = []
-        pkgs_attempt = []
-        for pkg_type in pkgs_to_install:
-            if pkg_type == Manifest.PKG_TYPE_ATTEMPT_ONLY:
-                pkgs_attempt += pkgs_to_install[pkg_type]
-            else:
-                pkgs += pkgs_to_install[pkg_type]
-
-        pm.install(pkgs)
-
-        pm.install(pkgs_attempt, True)
-
-    def _populate(self):
-        execute_pre_post_process(self.d, self.d.getVar("POPULATE_SDK_PRE_TARGET_COMMAND"))
-
-        bb.note("Installing TARGET packages")
-        self._populate_sysroot(self.target_pm, self.target_manifest)
-
-        self.target_pm.install_complementary(self.d.getVar('SDKIMAGE_INSTALL_COMPLEMENTARY'))
-
-        self.target_pm.run_intercepts(populate_sdk='target')
-
-        execute_pre_post_process(self.d, self.d.getVar("POPULATE_SDK_POST_TARGET_COMMAND"))
-
-        if not bb.utils.contains("SDKIMAGE_FEATURES", "package-management", True, False, self.d):
-            self.target_pm.remove_packaging_data()
-
-        bb.note("Installing NATIVESDK packages")
-        self._populate_sysroot(self.host_pm, self.host_manifest)
-        self.install_locales(self.host_pm)
-
-        self.host_pm.run_intercepts(populate_sdk='host')
-
-        execute_pre_post_process(self.d, self.d.getVar("POPULATE_SDK_POST_HOST_COMMAND"))
-
-        if not bb.utils.contains("SDKIMAGE_FEATURES", "package-management", True, False, self.d):
-            self.host_pm.remove_packaging_data()
-
-        # Move host RPM library data
-        native_rpm_state_dir = os.path.join(self.sdk_output,
-                                            self.sdk_native_path,
-                                            self.d.getVar('localstatedir_nativesdk').strip('/'),
-                                            "lib",
-                                            "rpm"
-                                            )
-        self.mkdirhier(native_rpm_state_dir)
-        for f in glob.glob(os.path.join(self.sdk_output,
-                                        "var",
-                                        "lib",
-                                        "rpm",
-                                        "*")):
-            self.movefile(f, native_rpm_state_dir)
-
-        self.remove(os.path.join(self.sdk_output, "var"), True)
-
-        # Move host sysconfig data
-        native_sysconf_dir = os.path.join(self.sdk_output,
-                                          self.sdk_native_path,
-                                          self.d.getVar('sysconfdir',
-                                                        True).strip('/'),
-                                          )
-        self.mkdirhier(native_sysconf_dir)
-        for f in glob.glob(os.path.join(self.sdk_output, "etc", "rpm*")):
-            self.movefile(f, native_sysconf_dir)
-        for f in glob.glob(os.path.join(self.sdk_output, "etc", "dnf", "*")):
-            self.movefile(f, native_sysconf_dir)
-        self.remove(os.path.join(self.sdk_output, "etc"), True)
-
-
-class OpkgSdk(Sdk):
-    def __init__(self, d, manifest_dir=None):
-        super(OpkgSdk, self).__init__(d, manifest_dir)
-
-        self.target_conf = self.d.getVar("IPKGCONF_TARGET")
-        self.host_conf = self.d.getVar("IPKGCONF_SDK")
-
-        self.target_manifest = OpkgManifest(d, self.manifest_dir,
-                                            Manifest.MANIFEST_TYPE_SDK_TARGET)
-        self.host_manifest = OpkgManifest(d, self.manifest_dir,
-                                          Manifest.MANIFEST_TYPE_SDK_HOST)
-
-        ipk_repo_workdir = "oe-sdk-repo"
-        if "sdk_ext" in d.getVar("BB_RUNTASK"):
-            ipk_repo_workdir = "oe-sdk-ext-repo"
-
-        self.target_pm = OpkgPM(d, self.sdk_target_sysroot, self.target_conf,
-                                self.d.getVar("ALL_MULTILIB_PACKAGE_ARCHS"), 
-                                ipk_repo_workdir=ipk_repo_workdir)
-
-        self.host_pm = OpkgPM(d, self.sdk_host_sysroot, self.host_conf,
-                              self.d.getVar("SDK_PACKAGE_ARCHS"),
-                                ipk_repo_workdir=ipk_repo_workdir)
-
-    def _populate_sysroot(self, pm, manifest):
-        pkgs_to_install = manifest.parse_initial_manifest()
-
-        if (self.d.getVar('BUILD_IMAGES_FROM_FEEDS') or "") != "1":
-            pm.write_index()
-
-        pm.update()
-
-        for pkg_type in self.install_order:
-            if pkg_type in pkgs_to_install:
-                pm.install(pkgs_to_install[pkg_type],
-                           [False, True][pkg_type == Manifest.PKG_TYPE_ATTEMPT_ONLY])
-
-    def _populate(self):
-        execute_pre_post_process(self.d, self.d.getVar("POPULATE_SDK_PRE_TARGET_COMMAND"))
-
-        bb.note("Installing TARGET packages")
-        self._populate_sysroot(self.target_pm, self.target_manifest)
-
-        self.target_pm.install_complementary(self.d.getVar('SDKIMAGE_INSTALL_COMPLEMENTARY'))
-
-        self.target_pm.run_intercepts(populate_sdk='target')
-
-        execute_pre_post_process(self.d, self.d.getVar("POPULATE_SDK_POST_TARGET_COMMAND"))
-
-        if not bb.utils.contains("SDKIMAGE_FEATURES", "package-management", True, False, self.d):
-            self.target_pm.remove_packaging_data()
-
-        bb.note("Installing NATIVESDK packages")
-        self._populate_sysroot(self.host_pm, self.host_manifest)
-        self.install_locales(self.host_pm)
-
-        self.host_pm.run_intercepts(populate_sdk='host')
-
-        execute_pre_post_process(self.d, self.d.getVar("POPULATE_SDK_POST_HOST_COMMAND"))
-
-        if not bb.utils.contains("SDKIMAGE_FEATURES", "package-management", True, False, self.d):
-            self.host_pm.remove_packaging_data()
-
-        target_sysconfdir = os.path.join(self.sdk_target_sysroot, self.sysconfdir)
-        host_sysconfdir = os.path.join(self.sdk_host_sysroot, self.sysconfdir)
-
-        self.mkdirhier(target_sysconfdir)
-        shutil.copy(self.target_conf, target_sysconfdir)
-        os.chmod(os.path.join(target_sysconfdir,
-                              os.path.basename(self.target_conf)), 0o644)
-
-        self.mkdirhier(host_sysconfdir)
-        shutil.copy(self.host_conf, host_sysconfdir)
-        os.chmod(os.path.join(host_sysconfdir,
-                              os.path.basename(self.host_conf)), 0o644)
-
-        native_opkg_state_dir = os.path.join(self.sdk_output, self.sdk_native_path,
-                                             self.d.getVar('localstatedir_nativesdk').strip('/'),
-                                             "lib", "opkg")
-        self.mkdirhier(native_opkg_state_dir)
-        for f in glob.glob(os.path.join(self.sdk_output, "var", "lib", "opkg", "*")):
-            self.movefile(f, native_opkg_state_dir)
-
-        self.remove(os.path.join(self.sdk_output, "var"), True)
-
-
-class DpkgSdk(Sdk):
-    def __init__(self, d, manifest_dir=None):
-        super(DpkgSdk, self).__init__(d, manifest_dir)
-
-        self.target_conf_dir = os.path.join(self.d.getVar("APTCONF_TARGET"), "apt")
-        self.host_conf_dir = os.path.join(self.d.getVar("APTCONF_TARGET"), "apt-sdk")
-
-        self.target_manifest = DpkgManifest(d, self.manifest_dir,
-                                            Manifest.MANIFEST_TYPE_SDK_TARGET)
-        self.host_manifest = DpkgManifest(d, self.manifest_dir,
-                                          Manifest.MANIFEST_TYPE_SDK_HOST)
-
-        deb_repo_workdir = "oe-sdk-repo"
-        if "sdk_ext" in d.getVar("BB_RUNTASK"):
-            deb_repo_workdir = "oe-sdk-ext-repo"
-
-        self.target_pm = DpkgPM(d, self.sdk_target_sysroot,
-                                self.d.getVar("PACKAGE_ARCHS"),
-                                self.d.getVar("DPKG_ARCH"),
-                                self.target_conf_dir,
-                                deb_repo_workdir=deb_repo_workdir)
-
-        self.host_pm = DpkgPM(d, self.sdk_host_sysroot,
-                              self.d.getVar("SDK_PACKAGE_ARCHS"),
-                              self.d.getVar("DEB_SDK_ARCH"),
-                              self.host_conf_dir,
-                              deb_repo_workdir=deb_repo_workdir)
-
-    def _copy_apt_dir_to(self, dst_dir):
-        staging_etcdir_native = self.d.getVar("STAGING_ETCDIR_NATIVE")
-
-        self.remove(dst_dir, True)
-
-        shutil.copytree(os.path.join(staging_etcdir_native, "apt"), dst_dir)
-
-    def _populate_sysroot(self, pm, manifest):
-        pkgs_to_install = manifest.parse_initial_manifest()
-
-        pm.write_index()
-        pm.update()
-
-        for pkg_type in self.install_order:
-            if pkg_type in pkgs_to_install:
-                pm.install(pkgs_to_install[pkg_type],
-                           [False, True][pkg_type == Manifest.PKG_TYPE_ATTEMPT_ONLY])
-
-    def _populate(self):
-        execute_pre_post_process(self.d, self.d.getVar("POPULATE_SDK_PRE_TARGET_COMMAND"))
-
-        bb.note("Installing TARGET packages")
-        self._populate_sysroot(self.target_pm, self.target_manifest)
-
-        self.target_pm.install_complementary(self.d.getVar('SDKIMAGE_INSTALL_COMPLEMENTARY'))
-
-        self.target_pm.run_intercepts(populate_sdk='target')
-
-        execute_pre_post_process(self.d, self.d.getVar("POPULATE_SDK_POST_TARGET_COMMAND"))
-
-        self._copy_apt_dir_to(os.path.join(self.sdk_target_sysroot, "etc", "apt"))
-
-        if not bb.utils.contains("SDKIMAGE_FEATURES", "package-management", True, False, self.d):
-            self.target_pm.remove_packaging_data()
-
-        bb.note("Installing NATIVESDK packages")
-        self._populate_sysroot(self.host_pm, self.host_manifest)
-        self.install_locales(self.host_pm)
-
-        self.host_pm.run_intercepts(populate_sdk='host')
-
-        execute_pre_post_process(self.d, self.d.getVar("POPULATE_SDK_POST_HOST_COMMAND"))
-
-        self._copy_apt_dir_to(os.path.join(self.sdk_output, self.sdk_native_path,
-                                           "etc", "apt"))
-
-        if not bb.utils.contains("SDKIMAGE_FEATURES", "package-management", True, False, self.d):
-            self.host_pm.remove_packaging_data()
-
-        native_dpkg_state_dir = os.path.join(self.sdk_output, self.sdk_native_path,
-                                             "var", "lib", "dpkg")
-        self.mkdirhier(native_dpkg_state_dir)
-        for f in glob.glob(os.path.join(self.sdk_output, "var", "lib", "dpkg", "*")):
-            self.movefile(f, native_dpkg_state_dir)
-        self.remove(os.path.join(self.sdk_output, "var"), True)
-
-
-
 def sdk_list_installed_packages(d, target, rootfs_dir=None):
     if rootfs_dir is None:
         sdk_output = d.getVar('SDK_OUTPUT')
@@ -394,6 +115,9 @@
 
         rootfs_dir = [sdk_output, os.path.join(sdk_output, target_path)][target is True]
 
+    from oe.package_manager.rpm import RpmPkgsList
+    from oe.package_manager.ipk import OpkgPkgsList
+    from oe.package_manager.deb import DpkgPkgsList
     img_type = d.getVar('IMAGE_PKGTYPE')
     if img_type == "rpm":
         arch_var = ["SDK_PACKAGE_ARCHS", None][target is True]
@@ -409,6 +133,9 @@
     env_bkp = os.environ.copy()
 
     img_type = d.getVar('IMAGE_PKGTYPE')
+    from oe.package_manager.rpm.sdk import RpmSdk
+    from oe.package_manager.ipk.sdk import OpkgSdk
+    from oe.package_manager.deb.sdk import DpkgSdk
     if img_type == "rpm":
         RpmSdk(d, manifest_dir).populate()
     elif img_type == "ipk":