PSP corrupted data when transferring from linux [SOLVED]

Message

pianosaurus · Post by **pianosaurus** » Fri Feb 22, 2008 5:43 pm

I was stuck on this problem for a long time, so hopefully others might find this if they run into the same.

If you try to update the firmware of your playstation portable through linux by putting EBOOT.PBP on the memorystick through USB, you will very likely see a CORRUPTED DATA message when trying to run it. The same message might show up in other cases too, and the problem is probably the same.

The reason is this: If you list the contents of a VFAT-drive, any file or directory name that is all in uppercase will display as lowercase. It is still stored as uppercase, though. Sony has decided that the PSP should be case sensitive, even though it is reading a case insensitive file system.

Therefore, even though you can't tell the difference later, make sure you create the update-folder with uppercase letters, and put the eboot-file in there in uppercase letters too.

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mkdir /media/disk/psp/game/UPDATE
cp EBOOT.PBP /media/disk/psp/game/update/

The psp/game-directory should be there already on a formatted stick.

So there...

pianosaurus · Post by **pianosaurus** » Fri Feb 22, 2008 5:48 pm

Also important: It seems data is not flushed to the drive immediately, so before leaving USB-mode on the PSP, you should unmount the drive. In many cases, this will take a lot of time, because data is not necessarily even transferred before this. I automount with ivman+pmount, so for me that means

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pumount /media/disk

zerojay · Post by **zerojay** » Tue Feb 26, 2008 12:25 pm

Wrong. The PSP is case-insensitive. Your one and only problem is that you were disconnecting before everything was flushed to the PSP.

pianosaurus · Post by **pianosaurus** » Wed Feb 27, 2008 1:00 am

I have always been aware of the flushing problem, and I never disconnected my psp without unmounting. Any other theories?

pianosaurus · Post by **pianosaurus** » Wed Feb 27, 2008 1:17 am

Just confirmed this, since I was in a debugging mood.

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$ ls /media/disk/psp/game/
$ mkdir /media/disk/psp/game/update
$ cp EBOOT.PBP /media/disk/psp/game/update/eboot.pbp
$ ls /media/disk/psp/game/update/
eboot.pbp
$ pumount /media/disk
$

Open Game -> Memory Stick on the PSP, and it says Corrupted Data, complete with a nice broken box depicting broken data.
Mounting the PSP again...

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$ rm -rf /media/disk/psp/game/update/
$ mkdir /media/disk/psp/game/UPDATE
$ cp EBOOT.PBP /media/disk/psp/game/update/
$ ls /media/disk/psp/game/update/
eboot.pbp
$ pumount /media/disk
$

Open Game -> Memory Stick again on the PSP, and voilá! Instant update. This happened with 3.60 (which I was upgrading from), and is still happening on 3.90. I rest my case.