env_noset
env_noset, env_screen_nounset);
env_noset, env_screen_nounset);
env_noset, env_nounset);
env_noset, env_nounset);
env_setenv("efi-version", EV_VOLATILE, var, env_noset, env_nounset);
env_setenv("loaddev", EV_VOLATILE | EV_NOHOOK, devname, env_noset,
env_noset, env_nounset);
extern ev_sethook_t env_noset; /* refuse set operation */