Addressed feedback, and added error check
Addressed feedback, and added error check

u-root/u-root,hugelgupf/u-root,GanShun/u-root,hugelgupf/u-root,GanShun/u-root,GanShun/u-root,hugelgupf/u-root,hugelgupf/u-root,u-root/u-root,u-root/u-root