Unable to boot from USB - root device "(null)"

[oct]

My original UNRAID USB drive died, fortunately I preformed backups and saved them externally. 

 

I used the UNRAID USB creator, local zip option, to flash my backup to a new USB drive. 

 

When I boot the new UNRAID USB I get a kernal panic - "Cannot open root device"

 

I've tried the solution mentioned here  with no luck. I have also tried different USB drives and USB ports on the computer. 

 

Help! 

syslog.txt

Edited March 8 by oct

[oct]

I was able to get the new USB to boot. It seems there may be an issue with the UNRAID USB Creator. When I use the Local Zip option to write any zip file, including my backup USB zip and the Archived downloaded from here  (unRAIDServer-6.11.5-x86_64.zip) the USB failed to boot. 

 

To get my new USB to work I used the UNRAID USB Creator and selected the Stable option. It downloaded the newest version of UNRAID (6.12.8) and wrote it to the new USB. I then copied my backup config folder to the new USB. This solved my issue and my array is back up and working normally. 

[itimpi]

If you get a similar problem again then often following the procedure documented here seems to fix the issue.