
    UNITED STATES of America, Plaintiff-Appellee, v. David Charles BARBER, Defendant-Appellant.
    No. 05-40428.
    Summary Calendar.
    United States Court of Appeals, Fifth Circuit.
    Decided Dec. 23, 2005.
    
      James Lee Turner, Assistant U.S. Attorney, U.S. Attorney’s Office, Southern District of Texas, Houston, TX, for PlaintiffAppellee.
    Timothy William Crooks, Assistant Federal Public Defender, Marjorie A Meyers, Federal Public Defender, Federal Public Defender’s Office, Southern District of Texas, Houston, TX, for Defendant-Appellant.
    Before GARWOOD, HIGGINBOTHAM and DAVIS, Circuit Judges.
   PER CURIAM:

David Charles Barber appeals the sentence imposed following his November 22, 2004 plea of guilty to one count of possession of marihuana with intent to distribute on or about September 30, 2004. Although Barber waived the right to appeal his sentence except for upward departures and a sentence exceeding the statutory maximum, the waiver does not bar his appeal. The district court incorrectly informed him that he could appeal an illegal sentence. Barber’s challenge to the purportedly unlawful supervised release condition is arguably a challenge to an allegedly illegal sentence. The Government concedes as much and declines to rely on the waiver. Moreover, the district court’s incorrect characterization of the waiver and failure to address the specific provisions of the waiver and ensure that Barber understood them may have rendered the waiver not knowing and voluntary. See United States v. Portillo, 18 F.3d 290, 292 (5th Cir.1994). For all these reasons, we conclude that the waiver does not preclude Barber’s appeal.

With respect to Barber’s contention that the district court erred in ordering, as a condition of supervised release, that he cooperate with the probation officer in the collection of DNA, his claim is not ripe for judicial review in light of our holding in United States v. Carmichael, 343 F.3d 756, 758 (5th Cir.2003), cert. denied, 540 U.S. 1136, 124 S.Ct. 1116, 157 L.Ed.2d 943 (2004). We reject Barber’s contention that Carmichael is distinguishable. See United States v. Riascos-Cuenu, 428 F.3d 1100, 1102 (5th Cir.2005). Accordingly, we dismiss this portion of the appeal for lack of jurisdiction.

Barber’s second argument, concerning the treatment of drug quantity graduations as sentencing factors rather than as elements of separate offenses under 21 U.S.C. §§ 841(a) and (b), is foreclosed by circuit precedent. See United States v. Slaughter, 238 F.3d 580, 582 (5th Cir. 2000). Barber concedes as much and raises the issue solely to preserve it for further review. Thus, we affirm the judgment of the district court on this point.

AFFIRMED IN PART; DISMISSED IN PART FOR LACK OF JURISDICTION. 
      
       Pursuant to 5th Cir. R. 47.5 the Court has determined that this opinion should not be published and is not precedent except under the limited circumstances set forth in 5th Cir. R. 47.5.4.
     
      
      . Barber was sentenced to 60 months’ imprisonment to be followed by a 5 year term of supervised released.
     