Hi

Just tried to upgrade from 7.0.0.1.

Now Unraid wont boot from my USB, BIOS says it's not bootable anymore.

For some stupid reason I didnt make a backup before upgrading.

A bit worried to mess thnis even more up.

This shows up on my Win11 PC and if I click on DVD is wants me to format. It's my Unraid USB

2. Quote

JorgeB Moderators

6 minutes ago

comment_1583027

2 hours ago, sosdk said:

Now Unraid wont boot from my USB, BIOS says it's not bootable anymore.

Try recreating the flash drive, first backup the current one, then recreate it using 7.1.4 with the USB tool, confirm the flash drive boots with the stock install, and if yes, restore only the /config folder from the backup overwriting any existing files.

If you need further help, please start a new thread in the general support forum this thread is not the right place for support.

Problem is that I cant acces the USB at all. I think it died :(

Can I "reinstall" Unraid and get everything up again without losing data ?

Got a lot of data, some dockers and 1 Windows 11 WM that I would like not to lose

Edited October 9, 2025Oct 9 by sosdk

If you don't have a flash backup see here:

https://docs.unraid.net/unraid-os/system-administration/maintain-and-update/changing-the-flash-device/#recovering-from-a-failed-flash-device-without-a-backup

Thanks JorgeB

Followed the guide and got my array and WM running. Parity is building :)

Can i restore my dockers without the USB ?

If you don't have a backup the user-templates folder will be missing, since they are stored in the flash drive, you can reinstall the same container you had using the same settings, and pointing to the existing appdata, and they should retain all the data.