RB_SINGLE
RB_MUTE, RB_PAUSE, RB_SERIAL, RB_SINGLE, RB_VERBOSE
RB_MUTE, RB_PAUSE, RB_SERIAL, RB_SINGLE, RB_VERBOSE
howto |= RB_SINGLE;
howto |= RB_SINGLE;
{ "boot_single", RB_SINGLE},
clval |= RB_SINGLE;
if ((boothowto & RB_SINGLE) == 0 &&
boothowto |= RB_SINGLE;