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tschutte's avatar
tschutte
Apprentice
Jan 06, 2026

ReadyNAS Ultra 6 OS 4.2.31 corrupted VPD

I upgraded 3 of my ReadyNAS Ultra 6 to OS 6, and although had issues, it is running smooth (touch wood).

 

However, I left 1 of my Ultra 6 as stock on os 4.2.31. The VPD has now been corrupted after failed restart that corrupted root. FrontView and RAIDar are empty when rebuilding the NAS.

 

I am looking for a stock v4.2.31 VPD from an Ultra 6. Willing to divert some funds to procure a valid file.

 

Contact me if you have a file or can help.

 

Not really looking at buying an old Ulyta 6 to scrape it's VPD, but willing to do this if this is the only option.

 

Message me please if you have a solution.

 

Thanks

 

7 Replies

  • Some are Ultra6 and some Ultra 6Plus. Will try again, maybe it is a finger problem

     

     

     

  • Yes tried. Maybe doing something wrong, but my OS4 is not recognizing the OS6 VPD when I replace it

     

    • Sandshark's avatar
      Sandshark
      Sensei

      Are all units an "Ultra6"?  You cannot use an Ultra6Plus vpd in an Ultra6 (though you can interchange an Ultra6Plus and Pro6, since they have the same hardware).  The vpd defines the unit type and serial number -- they are one way Netgear made it difficult to use ReadyNAS OS on generic hardware.

       

      Other possibilities are that the flash is actually bad or you are making a mistake in the copy process.  Lastly is that you have misdiagnosed the problem.

    • StephenB's avatar
      StephenB
      Guru - Experienced User
      tschutte wrote:

      Yes tried. Maybe doing something wrong, but my OS4 is not recognizing the OS6 VPD when I replace it

      AFAIK the VPD only contains hardware information, so nothing in it about the OS.

       

      Have you checked that the file in the flash matches what you copied?  (This could be a flash failure).

      • Sandshark's avatar
        Sandshark
        Sensei

        Native OS6 units use another method to ID the hardware, but loading OS6 to a legacy OS4.2.x unit does not change the vpd.  At least, it's not supposed to.  When it does, that's the problem.

  • The is no "stock" vpd.  It includes the unit serial number, so is unique to each unit.  But since you have others, just copy it from one of them.  It'll report a duplicate serial number, but that doesn't matter now that there is no ReadyCloud or Netgear support.

    • StephenB's avatar
      StephenB
      Guru - Experienced User
      Sandshark wrote:

      It includes the unit serial number, so is unique to each unit. 

      And is digitally signed by Netgear, so cannot be modified.

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