Willie Chester, federal prisoner No. 56341-080, appeals the district court’s denial of a 28 U.S.C. § 2241 petition challenging Chester’s 1992 Western District of Texas convictions and sentences as a career criminal for possession of a firearm by a felon and for making false statements in connection with the acquisition of a firearm. The district court denied relief because it determined that Chester’s claims sounded as an unauthorized second or successive 28 U.S.C. § 2255 motion and found that Chester had not made the showing necessary to seek 28 U.S.C. § 2241 relief by means of the savings clause of 28 U.S.C. § 2255. Because Chester does not challenge this determination by the district court, he has waived the only issue relevant to his appeal. Yohey v. Collins, 985 F.2d 222, 225 (5th Cir. 1993).

AFFIRMED.