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Avram's avatar
Avram
Aspirant
Jun 25, 2021
Solved

ReadyNAS 4200 upgrade from RAIDiator 4.x to OS 6.x

Anyone has any experience with upgrading ReadyNAS 4200 from RAIDiator 4.x to OS 6.x?   Thank you, Avram
  • mdgm's avatar
    mdgm
    Jun 29, 2021
    The Prep add-on is to avoid having to do the factory default manually via the boot menu (the boot menu can be a pain to use especially if the NAS is off-site). It’ll trigger a factory reset at the appropriate time in the update process.

    The R4 to R6 firmware image tricks RAIDiator-x86 into thinking you are installing a RAIDiator-x86 image by overwriting the header of the OS6 image to make it look like a RAIDiator-x86 one.

    If you open R4 to R6 6.9.5 and the stock 6.9.5 images in text editors (don’t make any changes) you’ll see that the checksum in the header matches. The checksum is for the rest of the file after the header.

    Installing OS6 over RAIDiator-x86 leaves the 4GB root volume in a weird state which the factory reset, of course fixes.

    Once you are on OS6 you install the normal OS6 images. To go back to RAIDiator-x86 you can install a downgrade image designed to trick OS6 into thinking it is an OS6 image. With the downgrade it will come back up with a status in RAIDar of corrupt root at which point a factory reset via the boot menu is required.

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