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Forum Discussion
tschutte
Jan 06, 2026Apprentice
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 afte...
StephenB
Jan 08, 2026Guru - 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
Jan 08, 2026Sensei
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.
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