diff --git a/poky/scripts/lib/wic/engine.py b/poky/scripts/lib/wic/engine.py
index 61939ad..18776fa 100644
--- a/poky/scripts/lib/wic/engine.py
+++ b/poky/scripts/lib/wic/engine.py
@@ -541,7 +541,7 @@
     """
     Write image to a target device.
     """
-    disk = Disk(args.image, native_sysroot, ('fat', 'ext', 'swap'))
+    disk = Disk(args.image, native_sysroot, ('fat', 'ext', 'linux-swap'))
     disk.write(args.target, args.expand)
 
 def find_canned(scripts_path, file_name):
diff --git a/poky/scripts/lib/wic/help.py b/poky/scripts/lib/wic/help.py
index 3a40fc0..af7d057 100644
--- a/poky/scripts/lib/wic/help.py
+++ b/poky/scripts/lib/wic/help.py
@@ -478,7 +478,7 @@
 SYNOPSIS
     wic write <image> <target>
     wic write <image> <target> --expand auto
-    wic write <image> <target> --expand 1:100M-2:300M
+    wic write <image> <target> --expand 1:100M,2:300M
     wic write <image> <target> --native-sysroot <path>
 
 DESCRIPTION
@@ -489,7 +489,7 @@
     The --expand option is used to resize image partitions.
     --expand auto expands partitions to occupy all free space available on the target device.
     It's also possible to specify expansion rules in a format
-    <partition>:<size>[-<partition>:<size>...] for one or more partitions.
+    <partition>:<size>[,<partition>:<size>...] for one or more partitions.
     Specifying size 0 will keep partition unmodified.
     Note: Resizing boot partition can result in non-bootable image for non-EFI images. It is
     recommended to use size 0 for boot partition to keep image bootable.
diff --git a/poky/scripts/lib/wic/plugins/source/rawcopy.py b/poky/scripts/lib/wic/plugins/source/rawcopy.py
index df86d67..82970ce 100644
--- a/poky/scripts/lib/wic/plugins/source/rawcopy.py
+++ b/poky/scripts/lib/wic/plugins/source/rawcopy.py
@@ -59,6 +59,9 @@
         src = os.path.join(kernel_dir, source_params['file'])
         dst = os.path.join(cr_workdir, "%s.%s" % (source_params['file'], part.lineno))
 
+        if not os.path.exists(os.path.dirname(dst)):
+            os.makedirs(os.path.dirname(dst))
+
         if 'skip' in source_params:
             sparse_copy(src, dst, skip=int(source_params['skip']))
         else: