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mount_block_root +267 on RN31400 + failing USB Firmware recovery
I upgraded my RN31400 (S/N 3C38460J0024C) to v6.9.4 last week.
After a shutdown at a later time I ended up with "mount_block_root +267" errors all the time when I try to reboot it.
It was impossible to take it up to any boot menu for memory/disk tests so I followed the only hits on mount_block_root that I coud find: "How-do-I-use-the-USB-Recovery-Tool-on-my-ReadyNAS-OS-6-storage-system".
My USB firmware recovery process with 6.9.4:
I have tried 2 different USB drives of good quality and it seems that my NAS successfully is able to read from the USB drives and it shuts itself down within a few minutes.
The problem now is that it hangs on the reboot after the firmware refresh (which is why I tried 2 different USB drives), the longest time I have left it so far is for one hour on the "Booting ..." screen.
I will source a few more USB drives but I don't have any hope that there will be any other outcome.
I should also mentioned that one of my 4 x 2 TB drives (in slot 2) had started to indicate a few errors but nothing serious. I got a new drive yesterday but I am not certain if I should even consider changing thar disk at this time.
Please advice. I do have backups but none local so it would be rather painfull to recover over the WAN.
3 Replies
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If this happened at shutdown, I don't think a USB recovery would help. So I don't recommend trying that again.
Did you try removing the disks (labeling them by slot), and then boot the system diskless? That should complete quickly, and the NAS should give you a "no disks" status on the LCD. You should also see that in RAIDar. If you get that, it gives you some confidence that the chassis is more-or-less functional.
Note that if your NAS was purchased between 1 June 2014 and 31 May 2016, then you have free lifetime chat support via my.netgear.com. If you have that you should use it. Paid support is also an option.
Hi Stephen,
I hadn't tried to remove the drives but I have now and it still hangs on "Booting..." so I guess it is a chassi HW (or potential firmware) issue.
I bought it on 2016-10-06 so no free lifetime chat support but I guess I could try to go down the HW replacement path unless you have another suggestion?
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