I plugged the flash drive into my PC and saw a lot of files, including config.
You mean I copy all these files to the PC, and then use this flash drive to recreate a UNRAID boot disk, only need to copy the config folder back to overwrite it?
Is my understanding wrong? Thanks for your answer.
I shut down my Unraid server before, but I got this error when I opened it today, I tried unplugging all hard disks and booting in safe mode, and I got the same error.
Could it be that the thumb drive is broken?
Any ideas are welcomed, and let me know what diagnostic info I can provide.
Thanks.