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unRaid server not booting up

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Posted (edited)

I noticed today that my server was running very slow. Like opening its UI takes 5 minutes. I ssh into my server and sure enough it was very slow and I was getting an error stating in my ssh session:

kernel:nmi: iock error (debug interrupt?) for reason 71

The error was flipping between reason 61 and 71

I rebooted my server and logged in using my IPMI and got :


Reboot and Select proper Boot device
or Insert Boot Media in selected Boot device and press a key

Please any help would be greatly appreciated:


My hardware are:

AsRock C2750d4i motherboard

16GB of RAM

SanDisk Cruzer Fit 32GB USB thumb drive (unRaid) 

4x 4TB WD Red

3x WD Red 8TB

1x Crucial 512GB SSD

Screen Shot 2018-06-13 at 7.05.56 PM.png


EDIT: When I restarted the server, I could not see the portion where I can go to the BIOS or select the boot device

EDIT1: I plugged the USB drive to my Linux laptop and when I do the lsusb it sees it as 

Bus 001 Device 010: ID 0781:5583 SanDisk Corp.

Also, I checked my GParted, and it sees it as /dev/sdb1. 

Edited by pingmanping

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2 hours ago, johnnie.black said:

Try redoing your flash drive.

I hope it is not too much to ask. I really don't know what I am doing here. Could you link me to the process of redoing my flash drive.

  1. Is it just buy a new flash drive then install unraid as a fresh install? 
  2. I know it was in 6.5, but I am 100% sure that it is not the latest. Would the version matters?
  3. How do I recover the license? I have the 12 drives license. 
  4. I do not have a backup of my flash drive. What options do I have and how bad is my situation?


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First try redoing your current flash drive:

-connect it to a PC and back it up

-redo it, you can use the Limetech USB creator tool

-restore the config folder from the backup to the flash drive

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I finally got two 16GB sandisk flash drives. 

I plugged my old flash drive to my OSX laptop and somehow I am able to see the stuff on it. I copied all the stuff from the old flash drive to a folder on my laptop.


Should I install the unRaid 6.5.3 to my new flash drive via Limetech USB Creator?

What should I copy from my old flash drive to the new flash drive?

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First try the old flash drive so you don't need to transfer the license, only if it fails you should try a new one, and you can try it without the license first to make sure it works.

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