OS 6 Upgrade Instructions for ReadyNAS Ultra RNDU2000

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flinky wrote:

However, I haven't seen any instructions on how to upgrade the ReadyNAS Duo Ultra v2 to OS 6, officially or unofficially - the latter of which I hear is provided by others. 

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Netgear doesn't officially support the conversion, so you won't find anything "official".

Do the RAM upgrade first. After that, the steps are

(Optionally) make sure the latest BIOS is installed before you do the conversion.  To do this you install  http://www.readynas.com/download/addons/x86/4.2/BIOS_Update_Package_0.5-x86.bin as an add-on and reboot the NAS.  Do this after you backup the NAS.  This isn't necessary, but if you do want to update the bios it is easiest to do it prior to conversion

Basic instructions for the conversion itself are

1. BACKUP, BACKUP, BACKUP
2. Upload PREPR4TOR6_0.1-x86.bin as an add-on using the ReadyNAS web gui, but do not reboot afterwards (avoids the need to do manual factory resets)
3. Upload R4toR6_6.9.5.bin using the ReadyNAS web gui firmware update
4. After you upload the addon+firmware and reboot, it will update the firmware and start a factory default.
5. Go through the setup process on the converted NAS 
6. Update the NAS to the current OS 6 (check for updates will work).
7. Restore files from the backup.

Netgear won't provide paid support on a converted NAS, so that is one consideration.  There is a small risk that the process could fail, and if that were to happen it might not be possible to get the NAS running again.  Sometimes the VPD ends up corrupted - only Netgear can fix that, and so far the mods have taken care of that as a courtesy.