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ZFS Setup in GUI fails with error "Unmountable: wrong or no file system"

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Creating a ZFS pool of 4 drives gives error message "Unmountable: wrong or no file system" when starting the (empty) array. No partitions are created. However, "zpool create raid raidz1 /dev/sdb /dev/sdc /dev/sdd /dev/sde" works flawlessly. Same behavior in 7.0.1 and 7.1.2.

Screenshot 2025-05-30 at 15.44.10.png

tower-diagnostics-20250530-1527.zip

Solved by JorgeB

  • Community Expert
  • Solution

I don't see an attempt to format the c«pool using the GUI, if you created a pool manually, make sure it's exported first (zpool export <pool name>), then try to format using the GUI and post new diags.

  • Author

I do not see a possibility to format the pool using the GUI. Shouldn't it format automatically after pressing "Apply" in the Raid Settings of the first drive?

  • Author

I found it, it works now. thank you!

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