--- a/eclass/xdg-utils.eclass	
+++ a/eclass/xdg-utils.eclass	
@@ -126,6 +126,6 @@ 
 	fi
 
 	ebegin "Updating shared mime info database"
-	update-mime-database "${EROOT%/}${MIMEINFO_DATABASE_DIR}"
+	PKGSYSTEM_ENABLE_FSYNC=0 update-mime-database "${EROOT%/}${MIMEINFO_DATABASE_DIR}"
 	eend $?
 }