Edgar Fernando Blanco Puerta, federal prisoner # 16259-179, appeals the district court’s dismissal of his 28 U.S.C. § 2241 petition without prejudice to Puerta’s seeking relief via the appropriate procedural vehicle. Although Puerta has briefed the merits of his claims, he has failed to address the procedural issue presented by the district court’s dismissal of his petition. Puerta has failed to brief the sole relevant issue for appeal. See Brinkmann v. Dallas County Deputy Sheriff Abner, 813 F.2d 744, 748 (5th Cir. 1987). His appeal therefore is dismissed as frivolous. See 5th Cir. R. 42.2.

APPEAL DISMISSED.