[WiiU]External Hard Drive Discovery

Discussion in 'Wii U - Hacking & Backup Loaders' started by greenlanternx, Jun 23, 2016.

  1. greenlanternx
    OP

    greenlanternx Advanced Member

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    Sep 16, 2012
    Chile
    Maybe my discovery is already known information, but...
    I have a 1TB HDD, I extract from my laptop because some problems with the partition table, I bought a new one, and rescue my data from the old one, scan the disc with HDD Regenerator, and think in use this disc in my wiiu, I download the data packages for xenoblade (less than 20GB), but the install fails... I re-scan the first 50 GB and found no error (the complete 1TB takes more than 5 days) I tried format to redownload the packages and... Wiiu froze every time

    Conclusion:
    -a Wii U formated HDD save the data from the end (and maybe backwards, so no one finds files on those disks)
    I hope this information turn out to be useful

    have a nice day
     
  2. CreeperMario

    CreeperMario GBAtemp Advanced Fan

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    Jun 18, 2016
    Australia
    OSv10 v15702
    Are you saying that you downloaded Xenoblade Chronicles X from the Nintendo eShop, had the Wii U store it on your HDD, and were then greeted to a failed install? And what do you mean by "scan the first 5GB?" Do you mean checking the filesystem? (Nintendo's proprietary filesystem that nobody has been able to successfully crack yet?)

    How can data be kept on a Wii U drive, be formatted and then still be accessible by a Wii U? Through hardcore recovery tools, maybe, but I doubt the Wii U can do that.

    If that's what actually happened, I would be pretty darn impressed. Would the Wii U then be able to re-install NES Remix without re-downloading it?
     
  3. greenlanternx
    OP

    greenlanternx Advanced Member

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    no, I download the data packages for the Physical Version
    HDDRegenerator scan any HDD regardless the type of partition (and without format, so I scan the first 50 GB of the wii U formated HDD), but exist some physical damage in the disk near the end, and the wiiU couldn't reformat the drive (freezing at every try, maybe because it try to secure delete the data before format)
    the process itself seems be like this:

    if (disk.partition_type!=wiiu){
    format();
    }
    else{
    if (data!=empty){
    secure_delete();//here the wiiU fails when the disk have damage near the end (wiiU will not let me delete it, fails and suggests format)
    }
    format();
    }

    as I said before, my guess is the wiiU store all data from the end and not from the start
     
    Last edited by greenlanternx, Jun 23, 2016
    CreeperMario likes this.
  4. ARVI80

    ARVI80 GBAtemp Regular

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    Feb 25, 2016
    UK
    The wii u hd storage is zero padded at the beginning of the drive and also zeroed between all data as data is stored in chunks. It's ssl aes encrypted and is of an obscured dos format, the sha reports itself in an odd manner.
    I can share all the commands used within its file system if you like but can't see any need to at this point in time.
     
  5. greenlanternx
    OP

    greenlanternx Advanced Member

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    Sep 16, 2012
    Chile
    thanks, but I don't need it (at least not yet)
    there are 2 facts:
    1. My disk have physical damage near the end (I checked the start of the disk, 50 GB, and find no damage)
    2. If is in wiiu format and have data wiiU try to delete this before format

    this have no solution (in wiiU) so I will use the disk for something else , this thread was only to share the info