MS_LB_BOOT_BLOCK
info->MS_Lib.Phy2LogMap[btBlk1st] = MS_LB_BOOT_BLOCK;
info->MS_Lib.Phy2LogMap[btBlk2nd] = MS_LB_BOOT_BLOCK;
return ms_lib_set_logicalblockmark(us, phyblk, MS_LB_BOOT_BLOCK);