When transfer a large file to root through tftp. "Out of memory" error like this: # tftp /xy7520/output_file.rbf a.rbf T [###########write: Out of memory ] My board has 1G ddr but the file jus 23M. So the memory large enough to hold the file. I think it should have a method to adjust the filesystem's size of root. But I can't find it. Help me please.