Unable to enumerate USB device

4 hours ago, shensw said:

Just ran into this exact issue today after updating to 7.3.2 and restarting my machine. I tried several different USB 2.0 ports with no luck. Out of desperation, I gave the unrecommended USB 3.0 port a shot, and it worked flawlessly! For reference, I'm using a 64GB Samsung FIT Plus.

Interesting that USB 3.0 worked when USB 2.0 didn't -- that's the reverse of the usual pattern here.

If it's a USB 3.0 drive running in a USB 3.0 port you've solved the immediate boot problem but may be creating a longer term one -- USB 3.0 drives in USB 3.0 ports run significantly hotter.

You could run a quick test to isolate the problem.

1. Grab a different USB 3.0 drive.

2. Download a fresh copy of the Unraid trial and write it to this test drive.

3. Shut down the Unraid server completely.

4. Unplug the original Unraid flash drive.

5. Plug the newly created test USB drive into the same USB 2.0 port that you were trying to use before.

6. Power the server back on and see if it boots up successfully. When it boots up, you'll need to find its new IP address.

If the server boots up successfully: this proves the motherboard, the USB 2.0 port, and the OS version are all working fine. It confirms the issue is specifically isolated to the original flash drive (likely a failing controller).

If it fails to boot: the problem lies deeper within the motherboard's USB handling, BIOS settings, or the new OS kernel's interaction.

When the test is done, simply shut down the server, unplug the test drive, and plug the original drive back in.

The data is completely untouched on the hard drives, and everything will be right back where you started.