[NTLUG:Discuss] Question about USB memory stick to mount properly.

[Choi Jason]

Hello guys,

I sent a question as followings a few days ago.
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I have a problem to mount USB memory stick.
I found some memory stick was successfully mounted but others were not
mounted successfully.
And the error messages are as followings.

FAT: bogus logical sector size 20487
VFS: Can't find a valid FAT filesystem on dev 08:00.
mount: Mounting /dev/sd0 on /mnt/usb failed: Invalid argument

I'm using kernel 2.4.20 on PowerPC platform (MPC8245).
USB host controller what I'm using is ISP 1562.
Would you give me some recommendation or comments for this?
I think I'm using so long time to solve this problem.
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And I found something.
That is some USB memory sticks are recognized as "sd0" and some 
other USB memory sticks are recognized as "sd1".
For devices recognized as "sd0", "mount -t vfat /dev/sd0 /mnt/usb" can be 
used. And for devices recognized as "sd1", "mount -t vfat /dev/sd1 
/mnt/usb" can be used as you expected.

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***** But I have one more question, here. *******
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How can application know the inserted memory stick is recognized as "sd0" 
or "sd1" by Kernel.
I think if the application don't know this, application could not mount USB 
memory properly.
Would you give me some comments or recommendation for this?
Thanks in advance,,,,

                  snowman