env_noset
env_noset, env_nounset);
env_setenv("loaddev", EV_VOLATILE, efi_fmtdev(&currdev), env_noset,
env_setenv("loaddev", EV_VOLATILE, i386_fmtdev(&new_currdev), env_noset,
extern ev_sethook_t env_noset; /* refuse set operation */