LS_SECTORS
if (read(h->fd, &h->eg, dbtob(LS_SECTORS)) != dbtob(LS_SECTORS)) {
tbp = ngeteblk(dbtob(LS_SECTORS));
bp = UFS_GETBLK(ufsvfsp, ufsvfsp->vfs_dev, bno, dbtob(LS_SECTORS));
ud->od_statesize = dbtob(LS_SECTORS);