As the title says iv clicked upgrade and I get UNRAID boot device not found, press ENTER to reboot. 
 

I updated plugins, docker and took a flash backup So what can the issue be as I can’t get in for logs.
 

regards

lee 

That suggests a flash drive problem, try re-creating it.

I'm having this same issue after upgrading from 6.9 to 6.10. 

 

Edit: Just restored 6.9 on my flash drive and it's booting normally now. 

Edited August 21, 20213 yr by bb12489

I had exactly the same issue.  Restrored to 6.9.2 from the backups and all back fine.

Maybe try again using this method then copy your config folder from your backup

 

I have the same problem of this issue, what's going on？ 6.9.2 works well, but can't boot after upgraded to 6.10

Same here. Tried formatting the USB, and doing a fresh (didn't copy my config folder across) manual install of 6.10 but the issue was the same. Have manually installed 6.9.2, copied my old config folder across and am backup and running with out issue. So seems there is a bug\issue in 6.10. 

 

I'm using a 16GB SanDisk Corp. Cruzer Fit as the boot USB

Same issue here. Im tried a fresh install with 6.10 and it working well.

Enviado desde mi SM-G988B mediante Tapatalk

Looks like the lsi 9211 don’t work in 6.10 rolled back to 6.9 works fine. 

4 minutes ago, Maticks said:

Looks like the lsi 9211 don’t work in 6.10

It's working fine for me, did you grab diags?

12 minutes ago, Maticks said:

Looks like the lsi 9211 don’t work in 6.10 rolled back to 6.9 works fine. 

This is not at all related to the topic of this thread.

I've created a bug report for this issue if any one else wants to add their diagnostic reports too it. Might help locate if its due to a particular bit of hardware etc.

 

I had this same issue. I tried to remove the USB drive and run the "make bootable" bat file and it kept giving me an access denied to MBR error. I was able to work around this by copying all of the contents of my USB drive to my hard drive, zipping it, creating an ISO from the zip file using AnyToISO 3.9.6 Lite Version and then writing that ISO to the USB using RUFUS making sure to name the volume UNRAID. It booted fine after that. Maybe this will help someone else with the same issue.

Edited May 19, 20223 yr by BVTJ

On 5/19/2022 at 10:02 AM, BVTJ said:

I had this same issue. I tried to remove the USB drive and run the "make bootable" bat file and it kept giving me an access denied to MBR error. I was able to work around this by copying all of the contents of my USB drive to my hard drive, zipping it, creating an ISO from the zip file using AnyToISO 3.9.6 Lite Version and then writing that ISO to the USB using RUFUS making sure to name the volume UNRAID. It booted fine after that. Maybe this will help someone else with the same issue.

 

Thank you so much for posting this!  I tried multiple methods and this was the only way I could get the USB to boot.  Thank you!!

On 5/19/2022 at 11:02 AM, BVTJ said:

I had this same issue. I tried to remove the USB drive and run the "make bootable" bat file and it kept giving me an access denied to MBR error. I was able to work around this by copying all of the contents of my USB drive to my hard drive, zipping it, creating an ISO from the zip file using AnyToISO 3.9.6 Lite Version and then writing that ISO to the USB using RUFUS making sure to name the volume UNRAID. It booted fine after that. Maybe this will help someone else with the same issue.

tried this and tried the make bootable batch file both methods have failed

8 hours ago, Nubby said:

tried this and tried the make bootable batch file both methods have failed

Did you try the method I linked above?