[hd51] image recovery fix the issue then image site more than 200 mb,…

… recovery not working, but now recovery 1 gb and restore time need longer

lib/python/Plugins/SystemPlugins/SoftwareManager/ImageBackup.py

@@ -349,7 +349,7 @@ def doFullBackup(self, DIRECTORY):
 			cmdlist.append('mcopy -i %s/boot.img -v %s/STARTUP_4 ::' % (self.WORKDIR, self.WORKDIR))
 			cmdlist.append('dd conv=notrunc if=%s/boot.img of=%s bs=1024 seek=%s' % (self.WORKDIR, EMMC_IMAGE, BOOT_PARTITION_OFFSET ))
 			cmdlist.append('dd conv=notrunc if=/dev/%s of=%s bs=1024 seek=%s' % (self.MTDKERNEL, EMMC_IMAGE, KERNEL_PARTITION_OFFSET ))
-			cmdlist.append('dd if=/dev/%s of=%s bs=1024 seek=%s count=%s' % (self.MTDROOTFS, EMMC_IMAGE, ROOTFS_PARTITION_OFFSET, IMAGE_ROOTFS_SIZE ))
+			cmdlist.append('dd if=/dev/%s of=%s bs=1024 seek=%s' % (self.MTDROOTFS, EMMC_IMAGE, ROOTFS_PARTITION_OFFSET ))
 		self.session.open(Console, title = self.TITLE, cmdlist = cmdlist, finishedCallback = self.doFullBackupCB, closeOnSuccess = True)
 
 	def doFullBackupCB(self):