def check(self): return fsutils.must_exist(self.__root_dir, ["sbin"], "mdadm")
def check(self): return fsutils.must_exist(self.__root_dir, ["sbin"], "multipath") \ and fsutils.must_exist(self.__root_dir, ["sbin"], "kpartx")
def check(self): return fsutils.must_exist(self.__root_dir, ["usr/sbin", "sbin"], "mount.aufs")
def check(self): return fsutils.must_exist(self.__root_dir, ["usr/sbin", "sbin"], "iscsid") \ and fsutils.must_exist(self.__root_dir, ["usr/sbin", "sbin", "usr/bin"], "iscsiadm")
def check(self): return fsutils.must_exist(self.__root_dir, ["usr"], "lib/klibc/bin/nfsmount")