I have been running my unraid server since about Feb. 2017 with great success. Much of it thanks to you all. Unfortunately, i can't figure out how to fix this situation. 

 

I stopped my array and turned off my server to plug it into a new UPS/Surge protector. Ever since i plugged my server into the unit i have gotten this error after trying to boot into the server.

end kernel panic - not syncing: VFS: unable to mount root fs on unknown-block(0,0)

I removed my usb flash drive and checked the drive in Windows 10 and no errors were reported. I also ran a memtest for over 3 hours and no errors.

 

Any thoughts on how to correct this? 

Edited December 3, 20178 yr by rh535

Redo your flasdrive or try with a new one just to see if it boots.

Windows doesn't check if the USB is bootable - just if it (potentially after a file system repair) seems to be readable.

 

So as @johnnie.black recommends - regenerate the flash drive or possibly replace it. But take care to make a copy of the configuration first.

2 hours ago, pwm said:

Windows doesn't check if the USB is bootable - just if it (potentially after a file system repair) seems to be readable.

 

So as @johnnie.black recommends - regenerate the flash drive or possibly replace it. But take care to make a copy of the configuration first.

 

5 hours ago, johnnie.black said:

Redo your flasdrive or try with a new one just to see if it boots.

 

What is the best way to accomplish this?

Copy the config folder, redo the flash drive and copy it back.

I just ran a Dell Bios system scan of components and it came back with an error for my SSD drive (cache drive). Can i just unplug my cache drive and see if then boots up correctly?

 

I don't want to make it worse, so i thought i would ask first.

11 minutes ago, rh535 said:

Can i just unplug my cache drive and see if then boots up correctly?

Yes, but if the array is set to auto start and you're using Docker and/or VMs and depending how they are configured it may create duplicate images.

Thank you both! I got a new flash drive and everything is back up and working. 

On 12/3/2017 at 1:22 PM, rh535 said:

Thank you both! I got a new flash drive and everything is back up and working. 

Hey how did you manage to get this working? I am in the same boat right now and can't figure out how to get a new flash drive to fix this

6 hours ago, Aznflipfoo said:

get a new flash

What have you tried? 

I'm experiencing a kernel panic when UnRaid tries to check the array, about halfway through, so I'm trying to go through the process to backup the flash drive and transfer it's files to a new one.  https://wiki.unraid.net/Manual/Changing_The_Flash_Device  However, after bringing UnRaid back up and clicking on "Registration Key", I have no button for "Replace Key".  How do I proceed?  I've emailed support while I wait.

 

"If you want to replace your Registration key with a new key bound to this USB Flash device, click Replace Key below."
Not there.