Hello, I would need some help with my unraid server. The dockers went down and the shares are inaccessible. The server is still running and the GUI informing me about a corrupt flash. I can still see all my array devices and pool devices in the list (main page). The Flash drive on the page is still shown as green with the message (mouseOver the green dot - "Normal operation - device is active"). The device identification is "sda", but under unassigned devices, I can see the stick with "sdt" with its name "UNRAID". Since I am still able to see and do some things on the unraid server, I am afraid to reboot the system, as the last backup is not usable anymore. I tried to get a backup on the "boot device" - "flash" page. It shows my GUID of the stick, but the backup attempt is giving me a 404 nginx message. I tried to look around, but quickly ran out of ideas.

 

 

As it was advised in another post, I screenshotted all array drives and pool drives. And, like the other user, I cannot see my docker page.

I managed to mount the flash drive (mount -o ro /dev/sdt1 /mnt/disks/usbflash), after creatung the usbflash directory and could see "hopefully" all files from the stick. The "/config" directory is present and accessible. Tried to open some text-files there without any issue. I managed to copy the usbflash directory (the unrais stick data) to my cache drive appdata directory into my syncthing to get it on another computer. Seems syncthing isn't running correctly. Have to do it manually with another usb-stick then. Currently not at hand...

Sorry, forgot to include the diagnostic file. Attached here.

unraid-01-diagnostics-20240901-1809.zip

Flash drive dropped offline, try using a different USB port, ideally USB 2.0, if it keeps dropping after that replace it.

Thanks for the reply. I used now a different port, but it still gets marked as "sdt" and not as "sda" (like the listed flash stick). Do I have to manually change something to get it to sda again? Maybe remove the "sdt" entry? I think the files on the stick are ok. I could find and access the config directory and all the docker configuration files as well.

 

13 minutes ago, just-a-user said:

a different port, but it still gets marked as "sdt" and not as "sda"

You have to reboot to get Unraid to use it as its boot drive again.

 

You can install the Flash Remount plugin to try and remount the drive if it randomly disconnects too.

Woah, that scares me, but can't be helped. Thanks a lot for the help!! I will do that later, firstly do some more file backups. Better safe than sorry (would have been great to have done that before and having a recent backup at hand). Will keep it updated, as soon as I did the reboot.

Edited September 1, 20241 yr by just-a-user

Ok, thanks everyone. As mentioned, a simple reboot was necessary. Unraid booted up without any problems, but the filesystem was flaged to check parity. But that was mentioned before in another post as well. So just for a summary:

 

Error: Unraid was showing a missing usb flash drive and license missing. (Message on top)

 

Analyse:

- The GUI did a fallback out of dark mode (was my preferred GUI setting) and the tab "Dockers" was missing. I have no VMs on this unraid, so VM-tab before.

- all pool drives were still visible

- usb flash drive was remounted under unassigned drives with a new device (for me it was sdt)

- Docker containers were still running in the background

- shares (smb) were inaccessible from outside

- I could create a new mount point and remount the sdt (usb flash) to see and copy all files (everything was there).

 

The solution was to reboot the unraid server. Many thanks to @Kilrah@trurl and @JorgeB

 

What have I learned? -- Do your config-backups!!! 

 

 

PS: I changed the USB Port to an internal usb2-port (externaly only usb3 available) and installed the flash remount addon Kilrah mentioned. Just to be safe.