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Forum Discussion
paul-j-ghosh
Sep 28, 2025Aspirant
latest firmware for RNDP4000 (ReadyNAS Pro 4)?
What and where is the latest firmware and upgrade instructions from RAIDiator 4.2.31 for RNDP4000 (ReadyNAS Pro 4)?
paul-j-ghosh
Sep 28, 2025Aspirant
Yes to OS-6. Also, what version of perl will be available on OS-6?
- StephenBSep 28, 2025Guru - Experienced User
paul-j-ghosh wrote:
version of perl will be available on OS-6?
6.10.10 is the current version.
The conversion downloads install 6.9.5, so you'd upgrade manually after that.
paul-j-ghosh wrote:
Yes to OS-6
I recommend increasing the RAM before you begin. Shipping OS-6 NAS have at least 2 GB of RAM, your ReadyNAS only has 1 GB. It might work, but there have been folks who have run into out-of-memory issues after converting. The upgrade is inexpensive, and is simple to do. If you aren't sure what to purchase, you can open the chassis and examine the RAM that's already installed in order to find something compatible.
The first step is to back up the NAS.
It is easier to update the BIOS before conversion to OS-6. So you optionally can 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
Also, if you have the skills, you should probably back up the VPD before conversion. Sometimes the flash can get corrupted, but backing it up could allow you to resolve the issue on your own if you run into it. More information on this is here:
Basic instructions for the conversion itself are
- 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)
- Upload R4toR6_6.9.5.bin using the ReadyNAS web gui firmware update
- After you upload the addon+firmware and reboot, it will update the firmware and start a factory default.
- Go through the setup process on the converted NAS
- Update the NAS to the current OS 6 (check for updates will NOT work).
- Restore files from the backup.
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.
Note that if you ever need to do a USB recovery later on, you will need to use the procedure for 4.2 systems - substituting an OS-6 image for the 4.2.31 one.
- https://kb.netgear.com/30267/RAIDiator-4-2-USB-Recovery-Tool
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