permissions probelem of ssd on sabresd board

[kaisun1]

I use ssd as my storage space on imx6 sabresd board.  but i found the /mnt/sata  have permissions problem ：

shell@android:/mnt $ ls -l

d--------- system   system            1970-01-02 00:03 satad---rwxr-x system   sdcard_rw          1970-01-02 00:13 sdcard

drwx------ root     root              1970-01-02 00:03 secure

drwxrwxr-x system   graphics          1970-01-02 00:03 shm

d--------- system   system            1970-01-02 00:03 udisk

d--------- system   system            1970-01-02 00:03 udisk2

if everyone  know where file set the permission. please tell me .I expect your help。thank you.

[kaisun1 · Accepted solution]

  My operation  as follows：

1.make menuconfig :add the driver.

2./myandroid/device/fsl/imx6/etc/init.rc：

exportSECONDARY_STORAGE /mnt/extsd:/mnt/udisk:/mnt/udisk2:/mnt/sata

mkdir /mnt/udisk 0000 system system

    symlink /mnt/udisk /udisk

    mkdir /mnt/udisk2 0000 system system

    symlink /mnt/udisk2 /udisk2

    mkdir /mnt/sata 0000 system system

    symlink /mnt/sata /sata

3.on the /myandroid/device/fsl/imx6/sabresd/vold.fstab  flie：

dev_mount udisk2 /mnt/udisk2  auto /devices/platform/fsl-ehci.1/usb2

dev_mount sata   /mnt/sata auto /devices/platform/ahci.0

And now the phenomenon is: you can see through the HyperTerminal：

drwx------ root     root              2013-05-24 10:19 root

lrwxrwxrwx root     root              1970-01-02 00:37 sata -> /mnt/sata

drwxr-x--- root     root              1970-01-01 00:00 sbin

lrwxrwxrwx root     root              1970-01-02 00:37 sdcard -> /mnt/sdcard

lrwxrwxrwx root     root              1970-01-02 00:37 udisk -> /mnt/udisk

lrwxrwxrwx root     root              1970-01-02 00:37 udisk2 -> /mnt/udisk2

-rw-r--r-- root     root         2616 1970-01-01 00:00 ueventd.freescale.rc

-rw-r--r-- root     root          272 1970-01-01 00:00 ueventd.goldfish.rc

-rw-r--r-- root     root         3825 1970-01-01 00:00 ueventd.rc

lrwxrwxrwx root     root              1970-01-02 00:37 vendor -> /system/vendo

root@android:/mnt # ls -al

drwxr-xr-x root     system            1970-01-01 00:00 asec

d--------- system   system            1970-01-01 00:00 extsd

drwxr-xr-x root     system            1970-01-01 00:00 obb

d--------- system   system            1970-01-01 00:00 sata

d---rwxr-x system   sdcard_rw          1970-01-01 00:00 sdcard

drwx------ root     root              1970-01-01 00:00 secure

drwxrwxr-x system   graphics          1970-01-01 00:00 shm

d--------- system   system            1970-01-01 00:00 udisk

d--------- system   system            1970-01-01 00:00 udisk2

we can see the sata is d---------。

Currently you can see this folder, but it can not be read/write, please help me analyze where is the problem, thank you very much ~!