So I just built my first and only NAS and went with UNRAID 6.12.14.  I spent a week and a half SMART testing drives, transferring Data, creating shares and finally did a parity check.  I have 6 HDDs for storage, 1x12TB Parity drive and 5x 10TB storage pool.  Have a couple NVMEs and 3 SSDs for Cache.  Thought I pretty much had the array dialed in.  I woke up today planning to create a backup for my flash boot drive and organize all the date from about 15 External drives I spent the week transferring.  I about lost my mind when Unraid would not load. I removed the boot drive, Verbatim 16gb usb2.0 flash drive, to see that everything on it is totally corrupted. Only symbols show up.  When it didn't boot and I realized the flash drive was corrupted I installed Unraid on another flash drive.  I create a password and when I go to log in it acts like all is brand new wanting me to create array, shares, etc.  I am sure it has to do with me not having a backup, but is there any way to save my array with no backup and the original boot drive gone.  Needless to say I am freaking out because my DA didn't make the backup sooner. Can someone help me out. I know I can transfer my license, but I really don't want to start ALL the way over.  I'm sure there is probably already a discussion for this, but I couldn't find anything.  Any help would be greatly appreciated.

The config folder from flash is all you need to get all of your configuration going again on a new flash drive.

 

If you can't get the config folder

 

https://docs.unraid.net/unraid-os/manual/changing-the-flash-device/#what-to-do-if-you-have-no-backup-and-do-not-know-your-disk-assignments

My original flash drive is dead.  Tried to follow directions provided, but the  /boot/config/disk.cfg file does not seem to exist with current Unraid

You can still follow the instructions above to recover the array assignments.

Truly appreciate the responses.  I will try to really dig back into it after the holidays.  There is a Brisket and a Fried Turkey that require my attention at the moment.  The fact that there is hope has me really excited.  More to come.  Happy Holidays!!!

Maybe chances are slim but if you had installed UnRaidConnect there is a backup of your config file online.

So I was finally able to get back to it and the instructions seem to be going ok.  I have my array back, transferred license to new usb drive and am trying to figure out how I had my shares setup.  I truly appreciate your help.  I was so scared I was going to have to start all the way over.  You guys rock!!!!