MEMORANDUM **

José Abel Fierro, an Arizona state prisoner, appeals pro se from the district court’s summary judgment in his 42 U.S.C. § 1983 action alleging constitutional violations arising from the loss of a box of legal documents when he was transferred between prisons. We have jurisdiction under 28 U.S.C. § 1291. We review de novo, Brodheim v. Cry, 584 F.3d 1262, 1267 (9th Cir. 2009), and we affirm.

The district court properly granted summary judgment on Fierro’s claim for denial of access to the courts because Fierro failed to raise a triable issue as to whether he suffered an actual injury. See Lewis v. Casey, 518 U.S. 343, 351-53 & n. 3, 116 S.Ct. 2174, 135 L.Ed.2d 606 (1996) (to show an actual injury, a prisoner must demonstrate that his efforts to pursue a nonfrivolous legal claim were hindered).

The district court properly granted summary judgment on Fierro’s retaliation claim because Fierro failed to raise a triable issue as to whether defendants knew about his prior lawsuit. See Brodheim, 584 F.3d at 1269 & n. 3 (to defeat summary judgment on a First Amendment retaliation claim in the prison context, the prisoner must raise a triable issue as to whether, inter alia, defendants took an adverse action against him because of his protected conduct).

The district court also properly granted summary judgment on Fierro’s due process claim. See Daniels v. Williams, 474 U.S. 327, 328, 106 S.Ct. 662, 88 L.Ed.2d 662 (1986) (“[T]he Due Process Clause is ... not implicated by a negligent act of an official causing unintended loss of or injury to life, liberty, or property.”); Ramirez v. Gatazo, 334 F.3d 850, 860 (9th Cir. 2003) (“[Ijnmates lack a separate constitutional entitlement to a specific prison grievance procedure.”).

Fierro’s remaining contentions are unpersuasive.

Appellees’ Motion to Supplement the Record on Appeal is construed as a request for judicial notice and, as such, is granted.

AFFIRMED.