1 files changed, 24 insertions, 3 deletions

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index 8b6c30bce8..c61d8140c5 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -303,6 +303,10 @@ python () {
                 basetype = type[:-len("." + ctype)]
                 break
 
+        if basetype != type:
+            # New base type itself might be generated by a conversion command.
+            basetype = _image_base_type(basetype)
+
         return basetype
 
     basetypes = {}
@@ -379,18 +383,35 @@ python () {
             bb.fatal("No IMAGE_CMD defined for IMAGE_FSTYPES entry '%s' - possibly invalid type name or missing support class" % t)
         cmds.append(localdata.expand("\tcd ${DEPLOY_DIR_IMAGE}"))
 
-        for bt in basetypes[t]:
+        rm_tmp_images = set()
+        def gen_conversion_cmds(bt):
             for ctype in ctypes:
                 if bt.endswith("." + ctype):
+                    type = bt[0:-len(ctype) - 1]
+                    # Create input image first.
+                    gen_conversion_cmds(type)
+                    localdata.setVar('type', type)
                     cmds.append("\t" + localdata.getVar("COMPRESS_CMD_" + ctype, True))
                     vardeps.add('COMPRESS_CMD_' + ctype)
-                    subimages.append(realt + "." + ctype)
+                    subimages.append(type + "." + ctype)
+                    if type not in alltypes:
+                        rm_tmp_images.add(localdata.expand("${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"))
+
+        for bt in basetypes[t]:
+            gen_conversion_cmds(bt)
 
+        localdata.setVar('type', realt)
         if realt not in alltypes:
-            cmds.append(localdata.expand("\trm ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"))
+            rm_tmp_images.add(localdata.expand("${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"))
         else:
             subimages.append(realt)
 
+        # Clean up after applying all conversion commands. Some of them might
+        # use the same input, therefore we cannot delete sooner without applying
+        # some complex dependency analysis.
+        for image in rm_tmp_images:
+            cmds.append("\trm " + image)
+
         after = 'do_image'
         for dep in typedeps[t]:
             after += ' do_image_%s' % dep.replace("-", "_").replace(".", "_")