diff --git a/poky/scripts/combo-layer b/poky/scripts/combo-layer
index a634dd6..045de65 100755
--- a/poky/scripts/combo-layer
+++ b/poky/scripts/combo-layer
@@ -508,7 +508,7 @@
     f.close()
     if of:
         of.close()
-        os.rename(patchfile + '.tmp', patchfile)
+        bb.utils.rename(patchfile + '.tmp', patchfile)
 
 def drop_to_shell(workdir=None):
     if not sys.stdin.isatty():
diff --git a/poky/scripts/contrib/image-manifest b/poky/scripts/contrib/image-manifest
new file mode 100755
index 0000000..3c07a73
--- /dev/null
+++ b/poky/scripts/contrib/image-manifest
@@ -0,0 +1,523 @@
+#!/usr/bin/env python3
+
+# Script to extract information from image manifests
+#
+# Copyright (C) 2018 Intel Corporation
+# Copyright (C) 2021 Wind River Systems, Inc.
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+import sys
+import os
+import argparse
+import logging
+import json
+import shutil
+import tempfile
+import tarfile
+from collections import OrderedDict
+
+scripts_path = os.path.dirname(__file__)
+lib_path = scripts_path + '/../lib'
+sys.path = sys.path + [lib_path]
+
+import scriptutils
+logger = scriptutils.logger_create(os.path.basename(__file__))
+
+import argparse_oe
+import scriptpath
+bitbakepath = scriptpath.add_bitbake_lib_path()
+if not bitbakepath:
+    logger.error("Unable to find bitbake by searching parent directory of this script or PATH")
+    sys.exit(1)
+logger.debug('Using standard bitbake path %s' % bitbakepath)
+scriptpath.add_oe_lib_path()
+
+import bb.tinfoil
+import bb.utils
+import oe.utils
+import oe.recipeutils
+
+def get_pkg_list(manifest):
+    pkglist = []
+    with open(manifest, 'r') as f:
+        for line in f:
+            linesplit = line.split()
+            if len(linesplit) == 3:
+                # manifest file
+                pkglist.append(linesplit[0])
+            elif len(linesplit) == 1:
+                # build dependency file
+                pkglist.append(linesplit[0])
+    return sorted(pkglist)
+
+def list_packages(args):
+    pkglist = get_pkg_list(args.manifest)
+    for pkg in pkglist:
+        print('%s' % pkg)
+
+def pkg2recipe(tinfoil, pkg):
+    if "-native" in pkg:
+        logger.info('skipping %s' % pkg)
+        return None
+
+    pkgdata_dir = tinfoil.config_data.getVar('PKGDATA_DIR')
+    pkgdatafile = os.path.join(pkgdata_dir, 'runtime-reverse', pkg)
+    logger.debug('pkgdatafile %s' % pkgdatafile)
+    try:
+        f = open(pkgdatafile, 'r')
+        for line in f:
+            if line.startswith('PN:'):
+                recipe = line.split(':', 1)[1].strip()
+                return recipe
+    except Exception:
+        logger.warning('%s is missing' % pkgdatafile)
+        return None
+
+def get_recipe_list(manifest, tinfoil):
+    pkglist = get_pkg_list(manifest)
+    recipelist = []
+    for pkg in pkglist:
+        recipe = pkg2recipe(tinfoil,pkg)
+        if recipe:
+            if not recipe in recipelist:
+                recipelist.append(recipe)
+
+    return sorted(recipelist)
+
+def list_recipes(args):
+    import bb.tinfoil
+    with bb.tinfoil.Tinfoil() as tinfoil:
+        tinfoil.logger.setLevel(logger.getEffectiveLevel())
+        tinfoil.prepare(config_only=True)
+        recipelist = get_recipe_list(args.manifest, tinfoil)
+        for recipe in sorted(recipelist):
+            print('%s' % recipe)
+
+def list_layers(args):
+
+    def find_git_repo(pth):
+        checkpth = pth
+        while checkpth != os.sep:
+            if os.path.exists(os.path.join(checkpth, '.git')):
+                return checkpth
+            checkpth = os.path.dirname(checkpth)
+        return None
+
+    def get_git_remote_branch(repodir):
+        try:
+            stdout, _ = bb.process.run(['git', 'rev-parse', '--abbrev-ref', '--symbolic-full-name', '@{u}'], cwd=repodir)
+        except bb.process.ExecutionError as e:
+            stdout = None
+        if stdout:
+            return stdout.strip()
+        else:
+            return None
+
+    def get_git_head_commit(repodir):
+        try:
+            stdout, _ = bb.process.run(['git', 'rev-parse', 'HEAD'], cwd=repodir)
+        except bb.process.ExecutionError as e:
+            stdout = None
+        if stdout:
+            return stdout.strip()
+        else:
+            return None
+
+    def get_git_repo_url(repodir, remote='origin'):
+        import bb.process
+        # Try to get upstream repo location from origin remote
+        try:
+            stdout, _ = bb.process.run(['git', 'remote', '-v'], cwd=repodir)
+        except bb.process.ExecutionError as e:
+            stdout = None
+        if stdout:
+            for line in stdout.splitlines():
+                splitline = line.split()
+                if len(splitline) > 1:
+                    if splitline[0] == remote and scriptutils.is_src_url(splitline[1]):
+                        return splitline[1]
+        return None
+
+    with bb.tinfoil.Tinfoil() as tinfoil:
+        tinfoil.logger.setLevel(logger.getEffectiveLevel())
+        tinfoil.prepare(config_only=False)
+        layers = OrderedDict()
+        for layerdir in tinfoil.config_data.getVar('BBLAYERS').split():
+            layerdata = OrderedDict()
+            layername = os.path.basename(layerdir)
+            logger.debug('layername %s, layerdir %s' % (layername, layerdir))
+            if layername in layers:
+                logger.warning('layername %s is not unique in configuration' % layername)
+                layername = os.path.basename(os.path.dirname(layerdir)) + '_' + os.path.basename(layerdir)
+                logger.debug('trying layername %s' % layername)
+                if layername in layers:
+                    logger.error('Layer name %s is not unique in configuration' % layername)
+                    sys.exit(2)
+            repodir = find_git_repo(layerdir)
+            if repodir:
+                remotebranch = get_git_remote_branch(repodir)
+                remote = 'origin'
+                if remotebranch and '/' in remotebranch:
+                    rbsplit = remotebranch.split('/', 1)
+                    layerdata['actual_branch'] = rbsplit[1]
+                    remote = rbsplit[0]
+                layerdata['vcs_url'] = get_git_repo_url(repodir, remote)
+                if os.path.abspath(repodir) != os.path.abspath(layerdir):
+                    layerdata['vcs_subdir'] = os.path.relpath(layerdir, repodir)
+                commit = get_git_head_commit(repodir)
+                if commit:
+                    layerdata['vcs_commit'] = commit
+            layers[layername] = layerdata
+
+    json.dump(layers, args.output, indent=2)
+
+def get_recipe(args):
+    with bb.tinfoil.Tinfoil() as tinfoil:
+        tinfoil.logger.setLevel(logger.getEffectiveLevel())
+        tinfoil.prepare(config_only=True)
+
+        recipe = pkg2recipe(tinfoil, args.package)
+        print(' %s package provided by %s' % (args.package, recipe))
+
+def pkg_dependencies(args):
+    def get_recipe_info(tinfoil, recipe):
+        try:
+            info = tinfoil.get_recipe_info(recipe)
+        except Exception:
+            logger.error('Failed to get recipe info for: %s' % recipe)
+            sys.exit(1)
+        if not info:
+            logger.warning('No recipe info found for: %s' % recipe)
+            sys.exit(1)
+        append_files = tinfoil.get_file_appends(info.fn)
+        appends = True
+        data = tinfoil.parse_recipe_file(info.fn, appends, append_files)
+        data.pn = info.pn
+        data.pv = info.pv
+        return data
+
+    def find_dependencies(tinfoil, assume_provided, recipe_info, packages, rn, order):
+        spaces = '  ' * order
+        data = recipe_info[rn]
+        if args.native:
+            logger.debug('%s- %s' % (spaces, data.pn))
+        elif "-native" not in data.pn:
+            if "cross" not in data.pn:
+                logger.debug('%s- %s' % (spaces, data.pn))
+
+        depends = []
+        for dep in data.depends:
+            if dep not in assume_provided:
+                depends.append(dep)
+
+        # First find all dependencies not in package list.
+        for dep in depends:
+            if dep not in packages:
+                packages.append(dep)
+                dep_data = get_recipe_info(tinfoil, dep)
+                # Do this once now to reduce the number of bitbake calls.
+                dep_data.depends = dep_data.getVar('DEPENDS').split()
+                recipe_info[dep] = dep_data
+
+        # Then recursively analyze all of the dependencies for the current recipe.
+        for dep in depends:
+            find_dependencies(tinfoil, assume_provided, recipe_info, packages, dep, order + 1)
+
+    with bb.tinfoil.Tinfoil() as tinfoil:
+        tinfoil.logger.setLevel(logger.getEffectiveLevel())
+        tinfoil.prepare()
+
+        assume_provided = tinfoil.config_data.getVar('ASSUME_PROVIDED').split()
+        logger.debug('assumed provided:')
+        for ap in sorted(assume_provided):
+            logger.debug(' - %s' % ap)
+
+        recipe = pkg2recipe(tinfoil, args.package)
+        data = get_recipe_info(tinfoil, recipe)
+        data.depends = []
+        depends = data.getVar('DEPENDS').split()
+        for dep in depends:
+            if dep not in assume_provided:
+                data.depends.append(dep)
+
+        recipe_info = dict([(recipe, data)])
+        packages = []
+        find_dependencies(tinfoil, assume_provided, recipe_info, packages, recipe, order=1)
+
+        print('\nThe following packages are required to build %s' % recipe)
+        for p in sorted(packages):
+            data = recipe_info[p]
+            if "-native" not in data.pn:
+                if "cross" not in data.pn:
+                    print(" %s (%s)" % (data.pn,p))
+
+        if args.native:
+            print('\nThe following native packages are required to build %s' % recipe)
+            for p in sorted(packages):
+                data = recipe_info[p]
+                if "-native" in data.pn:
+                    print(" %s(%s)" % (data.pn,p))
+                if "cross" in data.pn:
+                    print(" %s(%s)" % (data.pn,p))
+
+def default_config():
+    vlist = OrderedDict()
+    vlist['PV'] = 'yes'
+    vlist['SUMMARY'] = 'no'
+    vlist['DESCRIPTION'] = 'no'
+    vlist['SECTION'] = 'no'
+    vlist['LICENSE'] = 'yes'
+    vlist['HOMEPAGE'] = 'no'
+    vlist['BUGTRACKER'] = 'no'
+    vlist['PROVIDES'] = 'no'
+    vlist['BBCLASSEXTEND'] = 'no'
+    vlist['DEPENDS'] = 'no'
+    vlist['PACKAGECONFIG'] = 'no'
+    vlist['SRC_URI'] = 'yes'
+    vlist['SRCREV'] = 'yes'
+    vlist['EXTRA_OECONF'] = 'no'
+    vlist['EXTRA_OESCONS'] = 'no'
+    vlist['EXTRA_OECMAKE'] = 'no'
+    vlist['EXTRA_OEMESON'] = 'no'
+
+    clist = OrderedDict()
+    clist['variables'] = vlist
+    clist['filepath'] = 'no'
+    clist['sha256sum'] = 'no'
+    clist['layerdir'] = 'no'
+    clist['layer'] = 'no'
+    clist['inherits'] = 'no'
+    clist['source_urls'] = 'no'
+    clist['packageconfig_opts'] = 'no'
+    clist['patches'] = 'no'
+    clist['packagedir'] = 'no'
+    return clist
+
+def dump_config(args):
+    config = default_config()
+    f = open('default_config.json', 'w')
+    json.dump(config, f, indent=2)
+    logger.info('Default config list dumped to default_config.json')
+
+def export_manifest_info(args):
+
+    def handle_value(value):
+        if value:
+            return oe.utils.squashspaces(value)
+        else:
+            return value
+
+    if args.config:
+        logger.debug('config: %s' % args.config)
+        f = open(args.config, 'r')
+        config = json.load(f, object_pairs_hook=OrderedDict)
+    else:
+        config = default_config()
+    if logger.isEnabledFor(logging.DEBUG):
+        print('Configuration:')
+        json.dump(config, sys.stdout, indent=2)
+        print('')
+
+    tmpoutdir = tempfile.mkdtemp(prefix=os.path.basename(__file__)+'-')
+    logger.debug('tmp dir: %s' % tmpoutdir)
+
+    # export manifest
+    shutil.copy2(args.manifest,os.path.join(tmpoutdir, "manifest"))
+
+    with bb.tinfoil.Tinfoil(tracking=True) as tinfoil:
+        tinfoil.logger.setLevel(logger.getEffectiveLevel())
+        tinfoil.prepare(config_only=False)
+
+        pkglist = get_pkg_list(args.manifest)
+        # export pkg list
+        f = open(os.path.join(tmpoutdir, "pkgs"), 'w')
+        for pkg in pkglist:
+            f.write('%s\n' % pkg)
+        f.close()
+
+        recipelist = []
+        for pkg in pkglist:
+            recipe = pkg2recipe(tinfoil,pkg)
+            if recipe:
+                if not recipe in recipelist:
+                    recipelist.append(recipe)
+        recipelist.sort()
+        # export recipe list
+        f = open(os.path.join(tmpoutdir, "recipes"), 'w')
+        for recipe in recipelist:
+            f.write('%s\n' % recipe)
+        f.close()
+
+        try:
+            rvalues = OrderedDict()
+            for pn in sorted(recipelist):
+                logger.debug('Package: %s' % pn)
+                rd = tinfoil.parse_recipe(pn)
+
+                rvalues[pn] = OrderedDict()
+
+                for varname in config['variables']:
+                    if config['variables'][varname] == 'yes':
+                        rvalues[pn][varname] = handle_value(rd.getVar(varname))
+
+                fpth = rd.getVar('FILE')
+                layerdir = oe.recipeutils.find_layerdir(fpth)
+                if config['filepath'] == 'yes':
+                    rvalues[pn]['filepath'] = os.path.relpath(fpth, layerdir)
+                    if config['sha256sum'] == 'yes':
+                        rvalues[pn]['sha256sum'] = bb.utils.sha256_file(fpth)
+
+                if config['layerdir'] == 'yes':
+                    rvalues[pn]['layerdir'] = layerdir
+
+                if config['layer'] == 'yes':
+                    rvalues[pn]['layer'] = os.path.basename(layerdir)
+
+                if config['inherits'] == 'yes':
+                    gr = set(tinfoil.config_data.getVar("__inherit_cache") or [])
+                    lr = set(rd.getVar("__inherit_cache") or [])
+                    rvalues[pn]['inherits'] = sorted({os.path.splitext(os.path.basename(r))[0] for r in lr if r not in gr})
+
+                if config['source_urls'] == 'yes':
+                    rvalues[pn]['source_urls'] = []
+                    for url in (rd.getVar('SRC_URI') or '').split():
+                        if not url.startswith('file://'):
+                            url = url.split(';')[0]
+                            rvalues[pn]['source_urls'].append(url)
+
+                if config['packageconfig_opts'] == 'yes':
+                    rvalues[pn]['packageconfig_opts'] = OrderedDict()
+                    for key in rd.getVarFlags('PACKAGECONFIG').keys():
+                        if key == 'doc':
+                            continue
+                        rvalues[pn]['packageconfig_opts'][key] = rd.getVarFlag('PACKAGECONFIG', key, True)
+
+                if config['patches'] == 'yes':
+                    patches = oe.recipeutils.get_recipe_patches(rd)
+                    rvalues[pn]['patches'] = []
+                    if patches:
+                        recipeoutdir = os.path.join(tmpoutdir, pn, 'patches')
+                        bb.utils.mkdirhier(recipeoutdir)
+                        for patch in patches:
+                            # Patches may be in other layers too
+                            patchlayerdir = oe.recipeutils.find_layerdir(patch)
+                            # patchlayerdir will be None for remote patches, which we ignore
+                            # (since currently they are considered as part of sources)
+                            if patchlayerdir:
+                                rvalues[pn]['patches'].append((os.path.basename(patchlayerdir), os.path.relpath(patch, patchlayerdir)))
+                                shutil.copy(patch, recipeoutdir)
+
+                if config['packagedir'] == 'yes':
+                    pn_dir = os.path.join(tmpoutdir, pn)
+                    bb.utils.mkdirhier(pn_dir)
+                    f = open(os.path.join(pn_dir, 'recipe.json'), 'w')
+                    json.dump(rvalues[pn], f, indent=2)
+                    f.close()
+
+            with open(os.path.join(tmpoutdir, 'recipes.json'), 'w') as f:
+                json.dump(rvalues, f, indent=2)
+
+            if args.output:
+                outname = os.path.basename(args.output)
+            else:
+                outname = os.path.splitext(os.path.basename(args.manifest))[0]
+            if outname.endswith('.tar.gz'):
+                outname = outname[:-7]
+            elif outname.endswith('.tgz'):
+                outname = outname[:-4]
+
+            tarfn = outname
+            if tarfn.endswith(os.sep):
+                tarfn = tarfn[:-1]
+            if not tarfn.endswith(('.tar.gz', '.tgz')):
+                tarfn += '.tar.gz'
+            with open(tarfn, 'wb') as f:
+                with tarfile.open(None, "w:gz", f) as tar:
+                    tar.add(tmpoutdir, outname)
+        finally:
+            shutil.rmtree(tmpoutdir)
+
+
+def main():
+    parser = argparse_oe.ArgumentParser(description="Image manifest utility",
+                                        epilog="Use %(prog)s <subcommand> --help to get help on a specific command")
+    parser.add_argument('-d', '--debug', help='Enable debug output', action='store_true')
+    parser.add_argument('-q', '--quiet', help='Print only errors', action='store_true')
+    subparsers = parser.add_subparsers(dest="subparser_name", title='subcommands', metavar='<subcommand>')
+    subparsers.required = True
+
+    # get recipe info
+    parser_get_recipes = subparsers.add_parser('recipe-info',
+                                          help='Get recipe info',
+                                          description='Get recipe information for a package')
+    parser_get_recipes.add_argument('package', help='Package name')
+    parser_get_recipes.set_defaults(func=get_recipe)
+
+    # list runtime dependencies
+    parser_pkg_dep = subparsers.add_parser('list-depends',
+                                          help='List dependencies',
+                                          description='List dependencies required to build the package')
+    parser_pkg_dep.add_argument('--native', help='also print native  and cross packages', action='store_true')
+    parser_pkg_dep.add_argument('package', help='Package name')
+    parser_pkg_dep.set_defaults(func=pkg_dependencies)
+
+    # list recipes
+    parser_recipes = subparsers.add_parser('list-recipes',
+                                          help='List recipes producing packages within an image',
+                                          description='Lists recipes producing the packages that went into an image, using the manifest and pkgdata')
+    parser_recipes.add_argument('manifest', help='Manifest file')
+    parser_recipes.set_defaults(func=list_recipes)
+
+    # list packages
+    parser_packages = subparsers.add_parser('list-packages',
+                                          help='List packages within an image',
+                                          description='Lists packages that went into an image, using the manifest')
+    parser_packages.add_argument('manifest', help='Manifest file')
+    parser_packages.set_defaults(func=list_packages)
+
+    # list layers
+    parser_layers = subparsers.add_parser('list-layers',
+                                          help='List included layers',
+                                          description='Lists included layers')
+    parser_layers.add_argument('-o', '--output', help='Output file - defaults to stdout if not specified',
+                                default=sys.stdout, type=argparse.FileType('w'))
+    parser_layers.set_defaults(func=list_layers)
+
+    # dump default configuration file
+    parser_dconfig = subparsers.add_parser('dump-config',
+                                          help='Dump default config',
+                                          description='Dump default config to default_config.json')
+    parser_dconfig.set_defaults(func=dump_config)
+
+    # export recipe info for packages in manifest
+    parser_export = subparsers.add_parser('manifest-info',
+                                          help='Export recipe info for a manifest',
+                                          description='Export recipe information using the manifest')
+    parser_export.add_argument('-c', '--config', help='load config from json file')
+    parser_export.add_argument('-o', '--output', help='Output file (tarball) - defaults to manifest name if not specified')
+    parser_export.add_argument('manifest', help='Manifest file')
+    parser_export.set_defaults(func=export_manifest_info)
+
+    args = parser.parse_args()
+
+    if args.debug:
+        logger.setLevel(logging.DEBUG)
+        logger.debug("Debug Enabled")
+    elif args.quiet:
+        logger.setLevel(logging.ERROR)
+
+    ret = args.func(args)
+
+    return ret
+
+
+if __name__ == "__main__":
+    try:
+        ret = main()
+    except Exception:
+        ret = 1
+        import traceback
+        traceback.print_exc()
+    sys.exit(ret)
diff --git a/poky/scripts/lib/devtool/standard.py b/poky/scripts/lib/devtool/standard.py
index f364a45..5eba219 100644
--- a/poky/scripts/lib/devtool/standard.py
+++ b/poky/scripts/lib/devtool/standard.py
@@ -746,7 +746,7 @@
                         os.remove(removefile)
                 else:
                     tf.write(line)
-    os.rename(newfile, origfile)
+    bb.utils.rename(newfile, origfile)
 
 def get_staging_kver(srcdir):
     # Kernel version from work-shared
@@ -1094,10 +1094,10 @@
 
     # Rename bbappend
     logger.info('Renaming %s to %s' % (append, newappend))
-    os.rename(append, newappend)
+    bb.utils.rename(append, newappend)
     # Rename recipe file
     logger.info('Renaming %s to %s' % (recipefile, newfile))
-    os.rename(recipefile, newfile)
+    bb.utils.rename(recipefile, newfile)
 
     # Rename source tree if it's the default path
     appendmd5 = None
@@ -1333,7 +1333,7 @@
         if match_name:
             # Rename patch files
             if new_patch != match_name:
-                os.rename(os.path.join(destdir, new_patch),
+                bb.utils.rename(os.path.join(destdir, new_patch),
                           os.path.join(destdir, match_name))
             # Need to pop it off the list now before checking changed_revs
             oldpath = existing_patches.pop(old_patch)
diff --git a/poky/scripts/lib/devtool/upgrade.py b/poky/scripts/lib/devtool/upgrade.py
index 5a057e9..24e3700 100644
--- a/poky/scripts/lib/devtool/upgrade.py
+++ b/poky/scripts/lib/devtool/upgrade.py
@@ -71,7 +71,8 @@
                 if oldfile.find(oldpv) != -1:
                     newfile = oldfile.replace(oldpv, newpv)
                     if oldfile != newfile:
-                        os.rename(os.path.join(path, oldfile), os.path.join(path, newfile))
+                        bb.utils.rename(os.path.join(path, oldfile),
+                              os.path.join(path, newfile))
 
 def _rename_recipe_file(oldrecipe, bpn, oldpv, newpv, path):
     oldrecipe = os.path.basename(oldrecipe)
diff --git a/poky/scripts/lib/wic/plugins/imager/direct.py b/poky/scripts/lib/wic/plugins/imager/direct.py
index ea709e8..96168aa 100644
--- a/poky/scripts/lib/wic/plugins/imager/direct.py
+++ b/poky/scripts/lib/wic/plugins/imager/direct.py
@@ -616,5 +616,5 @@
                              part.start + part.size_sec - 1, part.size_sec)
 
                 partimage = self.path + '.p%d' % part.num
-                os.rename(source, partimage)
+                bb.utils.rename(source, partimage)
                 self.partimages.append(partimage)
diff --git a/poky/scripts/oe-buildenv-internal b/poky/scripts/oe-buildenv-internal
index ba0a9b4..e0d920f 100755
--- a/poky/scripts/oe-buildenv-internal
+++ b/poky/scripts/oe-buildenv-internal
@@ -88,6 +88,10 @@
     return 1
 fi
 
+# Add BitBake's library to PYTHONPATH
+PYTHONPATH=$BITBAKEDIR/lib:$PYTHONPATH
+export PYTHONPATH
+
 # Make sure our paths are at the beginning of $PATH
 for newpath in "$BITBAKEDIR/bin" "$OEROOT/scripts"; do
     # Remove any existences of $newpath from $PATH
diff --git a/poky/scripts/oe-debuginfod b/poky/scripts/oe-debuginfod
index 967dd58..5560769 100755
--- a/poky/scripts/oe-debuginfod
+++ b/poky/scripts/oe-debuginfod
@@ -20,12 +20,7 @@
         package_classes_var = "DEPLOY_DIR_" + tinfoil.config_data.getVar("PACKAGE_CLASSES").split()[0].replace("package_", "").upper()
         feed_dir = tinfoil.config_data.getVar(package_classes_var, expand=True)
 
-    try:
-        if package_classes_var == "DEPLOY_DIR_RPM":
-            subprocess.check_output(subprocess.run(['oe-run-native', 'elfutils-native', 'debuginfod', '--verbose', '-R', feed_dir]))
-        else:
-            subprocess.check_output(subprocess.run(['oe-run-native', 'elfutils-native', 'debuginfod', '--verbose', '-U', feed_dir]))
-    except subprocess.CalledProcessError:
-        print("\nTo use the debuginfod server Please ensure that this variable PACKAGECONFIG_pn-elfutils-native = \"debuginfod libdebuginfod\" is set in the local.conf")
-    except KeyboardInterrupt:
-            sys.exit(1)
+    subprocess.call(['bitbake', '-c', 'addto_recipe_sysroot', 'elfutils-native'])
+
+    subprocess.call(['oe-run-native', 'elfutils-native', 'debuginfod', '--verbose', '-R', '-U', feed_dir])
+    print("\nTo use the debuginfod server please ensure that this variable PACKAGECONFIG_pn-elfutils-native = \"debuginfod libdebuginfod\" is set in the local.conf")
diff --git a/poky/scripts/oe-time-dd-test.sh b/poky/scripts/oe-time-dd-test.sh
old mode 100644
new mode 100755
index 970a86d..46b218b
--- a/poky/scripts/oe-time-dd-test.sh
+++ b/poky/scripts/oe-time-dd-test.sh
@@ -13,11 +13,17 @@
         echo "Usage: $0 <count>"
 }
 
+TIMEOUT=15
+
 if [ $# -ne 1 ]; then
         usage
         exit 1
 fi
 
 uptime
-/usr/bin/time -f "%e" dd if=/dev/zero of=foo bs=1024 count=$1 conv=fsync
-top -b -n 1 | grep -v "0      0      0" | grep -E ' [RSD] ' | cut -c 46-47 | sort | uniq -c
+timeout ${TIMEOUT} dd if=/dev/zero of=oe-time-dd-test.dat bs=1024 count=$1 conv=fsync
+if [ $? -ne 0 ]; then
+	echo "Timeout used: ${TIMEOUT}"
+	top -c -b -n1 -w 512
+	tail -30 tmp*/log/cooker/*/console-latest.log
+fi
diff --git a/poky/scripts/pybootchartgui/pybootchartgui/draw.py b/poky/scripts/pybootchartgui/pybootchartgui/draw.py
index 53324b9..29eb750 100644
--- a/poky/scripts/pybootchartgui/pybootchartgui/draw.py
+++ b/poky/scripts/pybootchartgui/pybootchartgui/draw.py
@@ -271,7 +271,7 @@
     # If data_range is given, scale the chart so that the value range in
     # data_range matches the chart bounds exactly.
     # Otherwise, scale so that the actual data matches the chart bounds.
-    if data_range:
+    if data_range and (data_range[1] - data_range[0]):
         yscale = float(chart_bounds[3]) / (data_range[1] - data_range[0])
         ybase = data_range[0]
     else:
diff --git a/poky/scripts/runqemu b/poky/scripts/runqemu
index ba0b701..edd17d0 100755
--- a/poky/scripts/runqemu
+++ b/poky/scripts/runqemu
@@ -145,7 +145,6 @@
         self.qemu_opt = ''
         self.qemu_opt_script = ''
         self.qemuparams = ''
-        self.clean_nfs_dir = False
         self.nfs_server = ''
         self.rootfs = ''
         # File name(s) of a OVMF firmware file or variable store,
@@ -210,6 +209,8 @@
         self.qemupid = None
         # avoid cleanup twice
         self.cleaned = False
+        # Files to cleanup after run
+        self.cleanup_files = []
 
     def acquire_taplock(self, error=True):
         logger.debug("Acquiring lockfile %s..." % self.taplock)
@@ -1020,8 +1021,9 @@
                 logger.info('Running %s...' % str(cmd))
                 if subprocess.call(cmd) != 0:
                     raise RunQemuError('Failed to run %s' % cmd)
-                self.clean_nfs_dir = True
                 self.rootfs = dest
+                self.cleanup_files.append(self.rootfs)
+                self.cleanup_files.append('%s.pseudo_state' % self.rootfs)
 
         # Start the userspace NFS server
         cmd = ('runqemu-export-rootfs', 'start', self.rootfs)
@@ -1204,6 +1206,7 @@
             self.rootfs = newrootfs
             # Don't need a second copy now!
             self.snapshot = False
+            self.cleanup_files.append(newrootfs)
 
         qb_rootfs_opt = self.get('QB_ROOTFS_OPT')
         if qb_rootfs_opt:
@@ -1476,10 +1479,13 @@
         if self.saved_stty:
             subprocess.check_call(("stty", self.saved_stty))
 
-        if self.clean_nfs_dir:
-            logger.info('Removing %s' % self.rootfs)
-            shutil.rmtree(self.rootfs)
-            shutil.rmtree('%s.pseudo_state' % self.rootfs)
+        if self.cleanup_files:
+            for ent in self.cleanup_files:
+                logger.info('Removing %s' % ent)
+                if os.path.isfile(ent):
+                    os.remove(ent)
+                else:
+                    shutil.rmtree(ent)
 
         self.cleaned = True
 
diff --git a/poky/scripts/yocto-check-layer b/poky/scripts/yocto-check-layer
index b7c83c8..44e77b7 100755
--- a/poky/scripts/yocto-check-layer
+++ b/poky/scripts/yocto-check-layer
@@ -112,7 +112,7 @@
                      % layer['name'])
             layers.remove(layer)
         elif layer['type'] == LayerType.ERROR_NO_LAYER_CONF:
-            logger.error("%s: Don't have conf/layer.conf file."\
+            logger.info("%s: Doesn't have conf/layer.conf file, so ignoring"\
                      % layer['name'])
             layers.remove(layer)
         else:
@@ -138,6 +138,9 @@
                 layer['type'] == LayerType.ERROR_BSP_DISTRO:
             continue
 
+        # Reset to a clean backup copy for each run
+        shutil.copyfile(bblayersconf + '.backup', bblayersconf)
+
         if check_bblayers(bblayersconf, layer['path'], logger):
             logger.info("%s already in %s. To capture initial signatures, layer under test should not present "
                "in BBLAYERS. Please remove %s from BBLAYERS." % (layer['name'], bblayersconf, layer['name']))