Must a defendant be informed at the Rule 11 plea colloquy of a factual basis to support the defendant's plea of guilty before the court can accept the defendant's plea of guilty as freely and voluntarily made?

QUESTION PRESENTED Must a defendant be informed at the Rule 11 plea colloquy of a factual basis to support the defendant’s plea of guilty before the court can accept the defendant’s plea of guilty as freely and voluntarily made? If so, then the petitioner herein had the automatic right to withdraw his plea of guilty pursuant to Fed. R. Crim. P 11 (d)(1) because he was not informed in court of a factual basis until sentencing.