Lonnie R. Whitley, federal prisoner # 04545-033, appeals the district court’s dismissal of his 28 U.S.C. § 2241 petition challenging the 420-month sentence he received following his 1997 conviction for conspiracy to manufacture methamphetamine, using and carrying a firearm in connection with a drug-trafficking crime, and being a felon in possession of a firearm. He renews his claim that he was improperly sentenced and asserts that a fundamental miscarriage of justice will result from the failure to consider the merits of his claim. However, even if his brief is liberally construed, Whitley makes no argument that the district court erred in determining that he did not meet the criteria for raising his claims in this § 2241 petition pursuant to the savings clause of 28 U.S.C. § 2255(e). He has thus abandoned the only issue on appeal by failing to brief it. See Yohey v. Collins, 985 F.2d 222, 225 (5th Cir. 1993).

The appeal is without arguable merit, see Howard v. King, 707 F.2d 215, 219-20 (5th Cir. 1983), and is dismissed as frivolous. See 5th Cir. R. 42.2.

APPEAL DISMISSED.