diff --git a/packages/base/all/vendor-config-onl/src/python/onl/install/InstallUtils.py b/packages/base/all/vendor-config-onl/src/python/onl/install/InstallUtils.py
index 386f318a..9ce429fc 100644
--- a/packages/base/all/vendor-config-onl/src/python/onl/install/InstallUtils.py
+++ b/packages/base/all/vendor-config-onl/src/python/onl/install/InstallUtils.py
@@ -177,6 +177,27 @@ class SubprocessMixin:
         # don't believe it
         self.check_call(cmd, vmode=self.V1)
 
+    def cpR(self, srcRoot, dstRoot):
+        srcRoot = os.path.abspath(srcRoot)
+        dstRoot = os.path.abspath(dstRoot)
+        dstRoot = os.path.join(dstRoot, os.path.split(srcRoot)[1])
+        for r, dl, fl in os.walk(srcRoot):
+
+            for de in dl:
+                src = os.path.join(r, de)
+                subdir = src[len(srcRoot)+1:]
+                dst = os.path.join(dstRoot, subdir)
+                if not os.path.exists(dst):
+                    self.log.debug("+ /bin/mkdir -p %s", dst)
+                    os.mkdirs(dst)
+
+            for fe in fl:
+                src = os.path.join(r, de)
+                subdir = src[len(srcRoot)+1:]
+                dst = os.path.join(dstRoot, subdir)
+                self.log.debug("+ /bin/cp -a %s %s", src, dst)
+                shutil.copy2(src, dst)
+
 class TempdirContext(SubprocessMixin):
 
     def __init__(self, prefix=None, suffix=None, chroot=None, log=None):
@@ -678,6 +699,7 @@ class InitrdContext(SubprocessMixin):
         self.ilog.setLevel(logging.INFO)
         self.log = self.hlog
 
+        self._hasDevTmpfs = False
         self._detachInitrd = None
 
     def _unpack(self):
@@ -739,27 +761,28 @@ class InitrdContext(SubprocessMixin):
             else:
                 self.unlink(dst)
 
-        for e in os.listdir("/dev"):
-            src = os.path.join("/dev", e)
-            dst = os.path.join(dev2, e)
-            if os.path.islink(src):
-                self.symlink(os.readlink(src), dst)
-            elif os.path.isdir(src):
-                self.mkdir(dst)
-            elif os.path.isfile(src):
-                self.copy2(src, dst)
-            else:
-                st = os.stat(src)
-                if stat.S_ISBLK(st.st_mode):
-                    maj, min = os.major(st.st_rdev), os.minor(st.st_rdev)
-                    self.log.debug("+ mknod %s b %d %d", dst, maj, min)
-                    os.mknod(dst, st.st_mode, st.st_rdev)
-                elif stat.S_ISCHR(st.st_mode):
-                    maj, min = os.major(st.st_rdev), os.minor(st.st_rdev)
-                    self.log.debug("+ mknod %s c %d %d", dst, maj, min)
-                    os.mknod(dst, st.st_mode, st.st_rdev)
+        if not self._hasDevTmpfs:
+            for e in os.listdir("/dev"):
+                src = os.path.join("/dev", e)
+                dst = os.path.join(dev2, e)
+                if os.path.islink(src):
+                    self.symlink(os.readlink(src), dst)
+                elif os.path.isdir(src):
+                    self.mkdir(dst)
+                elif os.path.isfile(src):
+                    self.copy2(src, dst)
                 else:
-                    self.log.debug("skipping device %s", src)
+                    st = os.stat(src)
+                    if stat.S_ISBLK(st.st_mode):
+                        maj, min = os.major(st.st_rdev), os.minor(st.st_rdev)
+                        self.log.debug("+ mknod %s b %d %d", dst, maj, min)
+                        os.mknod(dst, st.st_mode, st.st_rdev)
+                    elif stat.S_ISCHR(st.st_mode):
+                        maj, min = os.major(st.st_rdev), os.minor(st.st_rdev)
+                        self.log.debug("+ mknod %s c %d %d", dst, maj, min)
+                        os.mknod(dst, st.st_mode, st.st_rdev)
+                    else:
+                        self.log.debug("skipping device %s", src)
 
         dst = os.path.join(self.dir, "dev/pts")
         if not os.path.exists(dst):
@@ -772,6 +795,11 @@ class InitrdContext(SubprocessMixin):
 
     def __enter__(self):
 
+        with open("/proc/filesystems") as fd:
+            buf = fd.read()
+        if "devtmpfs" in buf:
+            self._hasDevTmpfs = True
+
         if self.initrd is not None:
 
             self.log.debug("extracting initrd %s", self.initrd)
@@ -792,6 +820,16 @@ class InitrdContext(SubprocessMixin):
         cmd = ('mount', '-t', 'sysfs', 'sysfs', dst,)
         self.check_call(cmd, vmode=self.V1)
 
+        # maybe mount devtmpfs
+        if self._hasDevTmpfs:
+            dst = os.path.join(self.dir, "dev")
+            cmd = ('mount', '-t', 'devtmpfs', 'devtmpfs', dst,)
+            self.check_call(cmd, vmode=self.V1)
+
+            dst = os.path.join(self.dir, "dev/pts")
+            if not os.path.exists(dst):
+                self.mkdir(dst)
+
         dst = os.path.join(self.dir, "dev/pts")
         cmd = ('mount', '-t', 'devpts', 'devpts', dst,)
         self.check_call(cmd, vmode=self.V1)