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ReadyNAS Ultra 2 plus Corrupt root
Just replaced both drives after disk failure (retired the old ones) with new unformatted drives. RAIDar shows "corrupt root" error after trying to do volume setup. Tried factory default and get same ...
It sounds like the drives may not have been unformatted. Can you connect them to a Windows PC and see if there are any partitons on them? If there are, delete them. If there aren't, run vendor diagnistic tool to see if you got a bum drive.
After I was getting the corrupt root error I checked both drives via a USB caddy in a windows machine to check for a previous format. They were both functional but unfomatted (both are new drives). I decided to add a Windows format to check if defective. They both show up just fine and usable in Windows. I then deleted that format and re-installed in the NAS. Same result with corrupt root error.
One option is to do use the boot menu to do a factory default. See pages 14-15 here: http://www.downloads.netgear.com/files/GDC/RNDU2000/ReadyNAS_Ultra_UltraPlus_NVX_Pro_HW_en_8July11.pdf
Another option is to use either Seagate's Seatools software or WDC's Lifeguard software to zero the drives. Lifeguard has an option for a "quick zeros" test - that is much faster than zeroing the entire drive, and is enough to remove all traces of any partitioning.
I have tried the factory default option several times in the boot menu. It always comes back as corrupt root.
I also used to Seatools to zero the drive(s). Still comes back with corrupt root error.
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