Lionel Cureaux, Sr., a federal prisoner (#23888-034), appeals from the district court’s denial of his “Motion to Take Judicial Notice,” which the court construed as a Fed.R.CivP. 60(b) motion for relief from judgment. Previously, the district court had treated Cureaux’s “Petition for Declaratory and Injunctive Relief’ as a second or successive 28 U.S.C. § 2255 motion to vacate his conviction and sentence, and it had transferred the case to this court to permit Cureaux to seek authorization to file it in the district court. See In re Epps, 127 F.3d 364, 365 (5th Cir. 1997).

Cureaux argues that the district court had no legal authority to “transmogrify” his “Petition for Declaratory and Injunctive Relief ’ into a 28 U.S.C. § 2255 motion. Cureaux does not explicitly challenge the district court’s treatment of his postjudgment “Motion to Take Judicial Notice” as a Rule 60(b) motion or its denial of that motion. A Rule 60(b) motion is not a substitute for appeal of the underlying judgment, see Travelers Ins. Co. v. Liljeberg Enter., Inc., 38 F.3d 1404, 1408 (5th Cir. 1994), and must be based on one of six grounds cited in the rule, such as mistake, newly discovered evidence, or fraud. See Rule 60(b). Cureaux’s failure to identify an error in the district’s court analysis of his postjudgment motion is the same as if he had not appealed the judgment. See Brinkmann v. Dallas County Sheriff Abner, 813 F.2d 744, 748 (5th Cir. 1987). In any event, nothing in Cureaux’s appellate brief or our review of the record reflects that the district court erred in construing Cureaux’s postjudgment motion as a Rule 60(b) motion or that it abused its discretion in denying such motion. See Travelers Ins. Co., 38 F.3d at 1408. The judgment of the district court is AFFIRMED.

Cureaux is hereby WARNED that any further repetitious or frivolous attempts to circumvent statutory restrictions on filing second or successive 28 U.S.C. § 2255 motions to vacate may result in the imposition of sanctions against him. These sanctions may include dismissal, monetary sanctions, and restrictions on his ability to file pleadings in this court and any court subject to this court’s jurisdiction.

AFFIRMED; SANCTION WARNING ISSUED.