MAKEBOOTDEV
bootdev = MAKEBOOTDEV(dev_maj[DEVT_DISK], devdesc.d_slice + 1,
bootdev = MAKEBOOTDEV(dev_maj[bdev->dd.d_dev->dv_type],
MAKEBOOTDEV(dev_maj[dsk.type], 0, dsk.unit, 0),
rootdev = MAKEBOOTDEV(major, slice, unit, partition);
return MAKEBOOTDEV (j, (i >> 4), (i & 0xF),