Hi,

I have a BIG little problem and I know it an easy issue for the experts, which I am not.

I F'ed big time when update my Unraid to 7.3

I updated my system to 7.3 and selected the internal boot drive, an old 250 GB 2.5" HDD.

The USB boot drive disappeared and there was a boot pool.

I removed the USB flash drive, and the system won't stat.

I removed the boot pool and the system wont start with the USB flash in.

I downgraded back to 7.2.5 and every time I try to upgrade the WEBGUI won't start and I get "Welcome to Linux 6.12.85-Unraid x86_64 (tty1)

(none) login:" That is it and it won't recognize my root credentials.

Nothing would work from here.

I still have my flash drive backup. Is there a way to upgrade using new flash with 7.3 and then restoring my configuration from my backup??

I would suggest creating a new 7.3.1 flash drive using the USB Creator and check it boots. At this point it will be a virgin install with no licence.

You can then restore the config folder from the backup to get all your settings applied and reboot. If this step fails then it probably means there is an issue with the contents of your 'config' folder in the backup so if that turns out to be the case I suggest you come back here describing what is happening, ideally providing a diagnostics.zip file so we can see what the current state of things actually is.

16 hours ago, itimpi said:

I would suggest creating a new 7.3.1 flash drive using the USB Creator and check it boots. At this point it will be a virgin install with no licence.

You can then restore the config folder from the backup to get all your settings applied and reboot. If this step fails then it probably means there is an issue with the contents of your 'config' folder in the backup so if that turns out to be the case I suggest you come back here describing what is happening, ideally providing a diagnostics.zip file so we can see what the current state of things actually is.

I did what you have suggested and it worked like a charm.. even though I have tried it before with 7.3 and got the same result as the picture above.

So I thank you very much.

After a successful start, now the cache drive showing "unmountable wrong or no file system"

Now is the fear from moving to internal boot.. I hope I don't mess it again.

absnas-diagnostics-20260531-1331.zip

Open a terminal window and type

btrfs rescue zero-log /dev/nvme0n1p1

Then restart the array and post new diags

Amazing..

Thanks

absnas-diagnostics-20260531-1512.zip

Looks good for now; monitor the pool for any more issues.