請問sony tx 4.3 內外卡互換

dev_mount ext_card /storage/sdcard1 auto /devices/platform/msm_sdcc.3/mmc_host/mmc1
dev_mount usbdisk /storage/usbdisk auto /devices/platform/msm_hsusb_host
fuse_mount sdcard /storage/sdcard0 179 15 /mnt/int_storage

請問該如何修改呢?